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1 How can astronomers predict planetary alignment? What is ...
https://www.quora.com/How-can-astronomers-predict-planetary-alignment-What-is-the-scientific-importance-of-such-event
For nearby planets, you can just measure their (angular) size with a telescope, and then by knowing the distance it is easy to compute the diameter. That was ...
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2 Predicting planets: The highs and lows - Phys.org
https://phys.org/news/2016-01-planets-highs-lows.html
Astronomers use modelling all the time to predict the existence, nature, and behaviour of things they cannot actually see. Black holes, for ...
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3 Planetary Alignments - NASA Space Math
https://spacemath.gsfc.nasa.gov/Grade35/6Page41.pdf
In the sky, the two planets will appear closer together for Prediction 2 in 1911 years than for Prediction 1 in 2 years. If we want an even 'tighter' alignment ...
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4 Astronomical Prediction Based on Patterns - The Flat Earth Wiki
https://wiki.tfes.org/Astronomical_Prediction_Based_on_Patterns
This page will demonstrate that prediction in astronomy is based solely on patterns in the sky. Celestial events come in patterns and trends ...
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5 The planets are prepping for an epic alignment. Here's how to ...
https://www.livescience.com/planetary-alignment-2022
When will the planets align? ... The planets aren't really in a line in space; alignments are a trick of perspective. The planets orbit the sun on ...
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6 Ancient astronomers, planetary conjunctions, and epicycles
https://math.stackexchange.com/questions/95250/ancient-astronomers-planetary-conjunctions-and-epicycles
As explained in Wikipedia "Babylonian astronomers had developed arithmetical techniques for calculating astronomical phenomena and Greek astronomers ...
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7 Homework 4. Planetary Positions - IfA
https://home.ifa.hawaii.edu/users/barnes/ast110_99/homework/hw4.html
Predicting planetary positions was very difficult for ancient astronomers. With modern techniques, accurate predictions are possible -- if ...
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8 A manual prediction of planetary positions in the sky
https://www.prl.res.in/~rajiv/planexnews/oldarticles/Volume%20-2,%20Issue-3.13-18.pdf
Knowing the positions of the planets around the Sun, we can then use simple coordinate geometry to transform their position with respect to an observer on ...
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9 Computing planetary positions - Stjarnhimlen.se
https://stjarnhimlen.se/comp/ppcomp.html
The algorithms have been simplified as much as possible while still keeping a fairly good accuracy. The accuracy of the computed positions is a fraction of an ...
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10 Astronomy Lecture Number 3
https://web.njit.edu/~gary/202/Lecture3.html
Inside this sphere were other perfect spheres on which were attached the 7 "planets" in the following order (outer to inner)--Saturn, Jupiter, Mars, Sun, Venus, ...
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11 SOLVED:Use the Internet or other resource to find ... - Numerade
https://www.numerade.com/questions/use-the-internet-or-other-resource-to-find-out-how-astronomers-can-predict-planetary-alignment/
... we're asked determines how strong predict planetary alignment so we know that ... resource to find out how astronomers can predict planetary alignment.
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12 Astronomy 10 Course Notes
https://w.astro.berkeley.edu/~basri/astro10-03/lectures/lec03.html
MAIN CONCEPTS, Planetary Motions, Size/Shape of Earth, Size/Distance of ... and used mathematics and geometry to deduce and predict astronomical events.
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13 5 Planets Align in the Sky in Rare Formation
https://learningenglish.voanews.com/a/planets-align-in-the-sky-in-rare-formation/6630713.html
A map published by the Astronomical Society's Sky & Telescope magazine shows the planets appearing from left to right in this order – Mercury, ...
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14 Free Astronomy Lesson 11 - The Positions of the Planets
http://www.synapses.co.uk/astro/planets1.html
Plotting those two motions against the fixed starfield, while taking into account the geometry of the problem, leads you to a prediction of how the position of ...
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15 Trigonometry and Early Theories of Planetary Motion
https://www.maa.org/book/export/html/117240
Using astronomical instruments, it was possible for early astronomers to measure a planet's longitude and thereby track its motion around the ecliptic though ...
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16 Lecture 2: Orbital Motions - University of Arizona
http://ircamera.as.arizona.edu/astr_250/Lectures/LECTURE_02.HTM
Kepler was able to measure the distances to the other planets in terms of the Earth's distance from the Sun, the astronomical unit or AU. A shows how this is ...
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17 Geocentric Cosmology. - Explaining Science
https://explainingscience.org/2017/11/10/geocentric-cosmology/
Even when epicycles were added, the position of the planets was not where the model predicted they would be. The motion of the planets was still ...
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18 Planetary alignment? Increase in volcanoes? | Earth - EarthSky
https://earthsky.org/space/planetary-alignment-increase-in-volcanoes-july-2020/
The book called "The Jupiter Effect" suggested an alignment of planets in 1982 would cause earthly catastrophes, including a great ...
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19 History of Astronomy
http://abyss.uoregon.edu/~js/ast121/lectures/lec02.html
Kepler (1600's) a student of Tycho who used Brahe's database to formulate the Laws of Planetary Motion which corrects the problems of epicycles in the ...
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20 Astronomy Notes 3 - History of Astronomy
https://sites.uni.edu/morgans/astro/course/Notes/section1/new3.html
In order for early astronomers to predict the motions of the planets, ... is a perfect geometric shape and there was the belief that the sky should be the ...
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21 Chapter 2
http://relativity.liu.edu/steve/teaching/fall10/Ch02_Lecture.pdf
Western astronomy divides into 4 periods. – Prehistoric (before 500 B.C.) ... Geometry and models to explain motions ... predict planetary motion with.
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22 Early Astronomy - Northern Arizona University
https://www2.nau.edu/~gaud/bio301/content/erlast.htm
When one star was exactly above the other in the sky, astronomers could find a line that pointed due north. That alignment was only true for a few years ...
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23 How do you calculate the orbit of an object in space? - Syfy
https://www.syfy.com/syfy-wire/how-do-you-calculate-the-orbit-of-an-object-in-space
But how did he do it? By carefully measuring their motions, he could trace their paths around Saturn, their orbits. Given enough observations, ...
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24 Understanding Astronomy: Before Copernicus - Physics
https://physics.weber.edu/schroeder/ua/BeforeCopernicus.html
Although the calculations were complex, astronomers could use the system of Ptolemy's Almagest to predict planetary positions with reasonable accuracy.
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25 Astronomy Timeline - Mheducation
https://highered.mheducation.com/sites/0072482621/student_view0/astronomy_timeline.html
Chinese astronomers recorded 900 solar and 600 lunar eclipses over a period of 2600 ... The model could accurately predict the positions of the planets.
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26 Planetary alignment: No it won't cause an earthquake.
https://slate.com/technology/2015/05/planetary-alignment-no-it-won-t-cause-an-earthquake.html
At 8:40 he shows another “alignment” that apparently goes between the Earth and Moon … but note that the Moon's distance to Earth isn't shown to ...
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27 Harmonic resonances of planet and moon orbits - ScienceDirect
https://www.sciencedirect.com/science/article/pii/S1384107617301410
The model allows us a prediction of missing planets in each planetary system, based on the quasi-regular self-organizing pattern of harmonic orbit resonance ...
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28 Astronomy : Introduction : Lecture 5 : Motion of the Planets
http://www.opencourse.info/astronomy/introduction/05.motion_planets/
Maximum elongation of an inner planet from the Sun can be seen from the geometry of the picture at the right; it is determined by the tangent ...
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29 How did early astronomers calculate accurate solar system ...
https://skyandtelescope.org/astronomy-resources/astronomy-questions-answers/how-did-early-astronomers-calculate-accurate-solar-system-positions/
› astronomy-resources › ho...
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30 3.2.1 How did the idea of Earth as a planet gain favor?
https://grade8science.com/3-2-1-how-did-the-idea-of-earth-as-a-planet-gain-favor/
Kepler's laws represent a model of planetary motion that can be used to predict the locations of planets in our sky at any time. Just as with the earlier models ...
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31 Astronomy in the Divine Comedy - The World of Dante
http://www.worldofdante.org/astro1.html
However, Ptolemy's model required the invention of two more improvements to the mechanism of planetary motion to correctly predict the motion and positions of ...
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32 Chapter 2 - Chemistry at Winthrop University
http://chem.winthrop.edu/faculty/lipinski/link_to_webpages/courses/Arny_6th_ed/Ch02_Lecture.ppt
Astronomy in the Renaissance. However, problems remained: Could not predict planet positions any more accurately than the model of Ptolemy; Could not ...
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33 Prediction and calculation of solar and lunar eclipses
https://www.britannica.com/science/eclipse/Prediction-and-calculation-of-solar-and-lunar-eclipses
While this sphere appears to rotate daily, as measured by the positions of the stars, around the axis PP′ (Earth's axis of rotation), the Sun's.
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34 What Is it Called When All the Planets Are Lined Up in a ...
https://sciencing.com/called-planets-lined-up-straight-line-10043971.html
A combination of at least two bodies lined up in the same area of the sky, as seen from earth, is a conjunction. In an alignment, NASA writes, ...
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35 Geocentric model - Wikipedia
https://en.wikipedia.org/wiki/Geocentric_model
In 1687 Newton showed that elliptical orbits could be derived from his laws of gravitation. The astronomical predictions of Ptolemy's geocentric model, ...
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36 Caltech Researchers Find Evidence of a Real Ninth Planet
https://www.caltech.edu/about/news/caltech-researchers-find-evidence-real-ninth-planet-49523
A predicted consequence of Planet Nine is that a second set of confined objects should also exist. These objects are forced into positions at ...
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37 The upside-down orbits of a multi-planetary system
https://www.sciencedaily.com/releases/2021/10/211027122107.htm
When a planet transits its star, the orientation of its orbit can be determined with a spectrograph, which allows measuring the motion of the ...
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38 Chapter 3 The Science of Astronomy
https://www2.southeastern.edu/Academics/Faculty/rallain/easc101/page5/assets/chapter3.pdf
Geometry to determine distance of moon in ... So how does the Ptolemaic model explain retrograde motion? Planets ... for predicting planetary positions.
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39 How do scientists predict the orbit and apparent “peak ...
https://astronomy.com/magazine/ask-astro/2013/09/predicting-a-path
To determine a comet's orbit, we start by observing its positions with respect to the cataloged locations of background stars, and then apply ...
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40 Tools: Geometry and Time
http://spiff.rit.edu/classes/phys230/lectures/geom_time/geom_time_2.html
Time is pretty important to astronomers. Why? Two reasons: Some objects change their positions or brightnesses over time. Planets, for example, orbit around the ...
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41 Neptune and Pluto - MacTutor History of Mathematics Archive
https://mathshistory.st-andrews.ac.uk/HistTopics/Neptune_and_Pluto/
The first planet to be discovered was Uranus by William and Caroline Herschel ... a French astronomer whose tables of the planetary positions were the most ...
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42 The Celestial Sphere - Planetary Sciences, Inc.
https://planetary-science.org/astronomy/the-celestial-globe/
In this way, astronomers can predict geocentric or heliocentric positions of objects on the celestial sphere, without the need to calculate the individual ...
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43 Planetary alignment? - Universal Workshop
https://www.universalworkshop.com/2020/07/21/planetary-alignment/
You should take a look at the barycenter of each “insignificant” planet and also maybe consider their influence on the solar dynamo. The gas ...
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44 The Geocentric Model | Astronomy 801 - E-education.psu.edu
https://www.e-education.psu.edu/astro801/content/l2_p3.html
In the Almagest, Ptolemy included tables with the positions of the planets as predicted by his model. If you recall from our previous discussion, the retrograde ...
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45 Syzygy | CK-12 Foundation
https://flexbooks.ck12.org/cbook/ck-12-middle-school-earth-science-flexbook-2.0/section/3.8/related/rwa/syzygy/
This great word - syzygy - in astronomy refers to three celestial bodies ... During what type of event does an alignment of planetary bodies ...
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46 Planetary Alignment Didn't End the World in 1919. But One ...
https://www.discovermagazine.com/the-sciences/planetary-alignment-didnt-end-the-world-in-1919-but-one-professor-thought-it
Famous for his drastic weather predictions, Albert F. Porta's name could be seen in local papers across the country in the early 1900s.
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47 Moon and Planets in Ancient Mesopotamia
https://oxfordre.com/planetaryscience/view/10.1093/acrefore/9780190647926.001.0001/acrefore-9780190647926-e-198
After the end of the 5th century bce Babylonian astronomers introduced the zodiac and developed new methods for predicting lunar and planetary ...
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48 When Do The Planets Align? What Does This Astrological ...
https://kidadl.com/facts/when-do-the-planets-align-what-does-this-astrological-alignment-mean
Planetary alignment is the appearance of all the planets of our solar system in the same 180-degree wide pane of the sky. As the Earth orbits around the sun, ...
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49 Astronomy midterm #1 Flashcards - Quizlet
https://quizlet.com/ca/332895635/astronomy-midterm-1-flash-cards/
peak of Mesopotamian astronomy, accurate numerical predictions of future planetary positions/events made by mathematical calculations. could predict ...
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50 Whose Revolution? Copernicus, Brahe & Kepler | Modeling ...
https://www.loc.gov/collections/finding-our-place-in-the-cosmos-with-carl-sagan/articles-and-essays/modeling-the-cosmos/whose-revolution-copernicus-brahe-and-kepler
However, through innovations in mathematics, Kepler was able to mathematically describe ellipses that closely fit the paths the planets moved through in the ...
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51 Claudius Ptolemy - The Ogden Trust
http://ogdentrust.com/assets/general/Earth-and-Space-Research-Cards.pdf
predicting positions in the night sky that they were used to prepare astronomical and astrological charts for over. 1,500 years. Claudius Ptolemy ...
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52 A study of Babylonian planetary theory I. The outer planets
https://link.springer.com/article/10.1007/s00407-018-0216-0
The key concept in the Babylonian approach is the realization that variations in the synodic periods can be predicted from the synodic arcs, and ...
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53 The Planetary Theory of Solar Activity Variability: A Review
https://www.frontiersin.org/articles/10.3389/fspas.2022.937930/full
In some cases, planetary models have even been able to predict the time-phase ... In the case of two planets, the alignment index Iij between planet i and ...
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54 PART 2 - MOTIONS IN THE SKY - ASTRONOMY BY EYE
http://astronomy.nmsu.edu/holtz/a110/a110notes/node2.html
Copernicus' model with circular orbits still did not do a very good job of predicting the position of planets accurately. Refinements to the heliocentric theory ...
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55 Geometry of a Total Solar Eclipse | Clifftop
http://www.clifftopalliance.org/2017/08/geometry-of-a-total-solar-eclipse/
This coincidence of geometry is steeped in history and scientific discovery. In ancient times, civilizations such as the Babylonians, Chinese, ...
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56 Astronomy and Astrology in the Medieval Islamic World | Essay
https://www.metmuseum.org/toah/hd/astr/hd_astr.htm
Astrology seeks to predict the influence of the heavenly bodies on events on ... of the planets and the ability to calculate their positions in the future.
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57 Ptolemiac Astronomy - Dr Robert A. Hatch - CLAS Users
http://users.clas.ufl.edu/ufhatch/his-sci-study-guide/0034_summaryPtolemiacAstron.html
Planetary Orbits: Once again, the Greek approach to understanding the apparent ... positions (past, present, and future) might be computed and predicted.
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58 Brief History of Astronomy
https://www.mira.org/ana/copernic.htm
Copernicus assumed that the planets move in circles around the Sun, but he found errors in the predicted positions of the planets and had to introduce ...
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59 Learn how to Simulate a Ptolemaic Universe - microcosmos
http://microcosmos.uchicago.edu/simulator/simindex.html
What does an astronomer do, and why does he or she do it? In this period, an astronomer's duty was to predict planetary positions and eclipses.
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60 Claudius Ptolemy (article) | 2. The Big Bang | Khan Academy
https://www.khanacademy.org/humanities/big-history-project/big-bang/how-did-big-bang-change/a/claudius-ptolemy
Ptolemy synthesized Greek knowledge of the known Universe. His work enabled astronomers to make accurate predictions of planetary positions and solar and lunar ...
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61 2.2 Ancient Astronomy - OpenStax
https://openstax.org/books/astronomy-2e/pages/2-2-ancient-astronomy
Ancient Babylonian, Assyrian, and Egyptian astronomers knew the ... that allowed him to predict the positions of the planets at any time.
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62 Determining Planet Properties - Astronomy Notes
https://www.astronomynotes.com/solarsys/s2.htm
For planets without moons (Mercury and Venus), you can measure their gravitational pull on other nearby planets to derive an approximate mass or ...
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63 Astronomy Flashcards | Chegg.com
https://www.chegg.com/flashcards/astronomy-f0d0b35d-d92f-42eb-b19b-62fa3214e3f6/deck
Wrote several books on algebra, geometry and astronomy ... Could not predict the positions of the planets any more accurately than the Ptolemaic model ...
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64 Transit Method | Las Cumbres Observatory
https://lco.global/spacebook/exoplanets/transit-method/
Smaller planets in larger orbits are even less likely to be aligned in such a way that we can observe transits. For planets that do transit, astronomers can ...
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65 A Brief History of Astronomy and Astrophysics : The Earth Moves
https://www.worldscientific.com/doi/pdf/10.1142/9789813233843_0001
used to predict when and where they would next appear. Our ancestors called ... The geometrical models that were constructed to describe the planetary.
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66 After 400 Years, a Challenge to Kepler:He Fabricated His ...
https://www.nytimes.com/1990/01/23/science/after-400-years-a-challenge-to-kepler-he-fabricated-his-data-scholar-says.html
Kepler showed that the planets move in elliptical orbits rather than in circles as Copernicus suggested. In his book describing the insight, he ...
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67 Tycho Brahe and Johannes Kepler - Galileo and Einstein
https://galileoandeinstein.phys.virginia.edu/lectures/tycho.htm
These two colorful characters made crucial contributions to our understanding of the universe: Tycho's observations were accurate enough for Kepler to discover ...
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68 Celestial Geometry: Understanding the Astronomical ...
https://www.amazon.com/Celestial-Geometry-Understanding-Astronomical-Meanings/dp/1786782707
Celestial Geometry: Understanding the Astronomical Meanings of Ancient Sites ; Celestial Geometry · Understanding the Astronomical Meanings of Ancient Sites ; Qty: ...
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69 Altered mind this morning? Hehe, just blame the planets
https://theconversation.com/altered-mind-this-morning-hehe-just-blame-the-planets-1235
Sky positions of the sun and moon were used extensively in prehistory to predict changes of season. The most famous ancient monolith dedicated ...
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70 johannes kepler's on the more certain fundamentals ... - JSTOR
https://www.jstor.org/stable/986232
planets. Unlike astronomy with its ability to make precise predictions of celestial events, ... equally scientific, for geometry to explain astrological.
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71 Ep. 171: Solar System Movements and Positions
http://www.astronomycast.com/2010/02/ep-171-solar-system-movements-and-positions/
And how well were astronomers able to use this model to do astronomy? ... the speed of the planet moving and trying to use that to predict ...
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72 chapter3
https://home.csulb.edu/~htahsiri/astrouci/chapter3.html
* A planet moved in a circle on an Epicycle, which itself moved on a Deferent. The system could predict accurately the positions of the planets and was in use ...
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73 Eclipse Prediction on the Ancient Greek Astronomical ... - NCBI
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116162/
The ancient Greeks built a machine that can predict, for many years ahead, ... The planetary gearing at the front is conjectural [5], ...
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74 NTI Day 6 Astronomy Michael Feeback Go to: teachastronomy ...
https://www.scott.k12.ky.us/userfiles/2473/Classes/91499/nti%20day%206.pdf?id=67801
In 1252, Spain's King Alfonso X funded a special almanac of predicted planetary positions. Watching his astronomers laboriously calculate motions of epicycles ...
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75 Calculating Planetary Cycles using Geometry.
https://www.lindsaymcauley.com/wp-content/uploads/2020/08/Calculating-Planetary-Cycles-using-Geometry.pdf
A method of predicting the motions of planets was to map their positions against the star field background and then to apply mathematics or geometry to the ...
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76 New Perspectives in the History of Ancient Astronomy.
http://physics.ucsc.edu/~michael/longbeach.html
(3) the Greek astronomers sought only to calculate accurate planetary positions ... the accurate calculation of planet positions from a geometrical theory.
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77 ASTR 203
https://www.vanderbilt.edu/AnS/physics/astrocourses/ast203/islam_astronomy.html
preserve ideas of Ptolemy and Aristotle; gave names to stars, ... a complete set of astronomical tables that enable predictions of positions of celestial OR ...
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78 Solar system planetary alignment triggers tides and earthquakes
https://www.researchgate.net/publication/349804886_Solar_system_planetary_alignment_triggers_tides_and_earthquakes
puzzled at how to get rid of the disaster (Venkatanathan et al. 2005). The earthquake prediction had previously investigated by.
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79 Math whizzes of ancient Babylon figured out forerunner of ...
https://www.science.org/content/article/math-whizzes-ancient-babylon-figured-out-forerunner-calculus-2
Tracking and recording the motion of the sun, the moon, and the planets as they paraded across the desert sky, ancient Babylonian astronomers used simple ...
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80 Log Graphs to Plot Planetary Patterns
https://ibmathsresources.com/2017/08/14/log-graphs-to-plot-planetary-patterns/
For a geometric sequence we would therefore want x/1.52 = 5.20/x. This gives x = 2.8 AU – so a missing planet should be 2.8 AU away from the Sun ...
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81 The great Martian catastrophe and how Kepler fixed it
https://physicstoday.scitation.org/doi/10.1063/PT.3.1259
Both systems predict essentially the same planetary positions. ... In Kepler's day, virtually all astronomers looked to mother geometry for inspiration.
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82 Geometry of light and shadows
http://sac.csic.es/astrosecundaria/en/cursos/formato/materiales/libro/geometria_ingles.pdf
Ptolemy wanted to be able to predict the positions of planets and came up with a mathematical solution. Following Aristotle, he placed the ...
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83 ESS1.B: Earth and the Solar System - The Wonder of Science
https://thewonderofscience.com/ess1b-earth-and-the-solar-system
Planets in the night sky change positions and are not always visible from Earth as they orbit the sun. Stars appear in patterns called constellations, which can ...
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84 Mystery of the wise men; Astrology: An image on an ancient ...
https://www.baltimoresun.com/news/bs-xpm-1999-12-17-9912170115-story.html
As "wise men," they convinced people they could predict the future with esoteric formulae that forecast positions of stars and planets among ...
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85 Planetary Astronomy | Working Papers
https://www.nap.edu/read/1635/chapter/11
Today we recognize that the Trojan asteroids (orbiting the Sun at the distance of Jupiter) are as numerous as the asteroids of the main belt, a fact that was ...
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86 Ancient Mayan Astronomy: the Sun, Moon, and Planets
https://www.thoughtco.com/ancient-maya-astronomy-2136314
The moon was nearly as important as the sun to the ancient Maya. Mayan astronomers analyzed and predicted the moon's movements with great ...
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87 Benoit Mandelbrot, Fractals and Astronomy (Part 1).
http://websites.umich.edu/~lowbrows/reflections/1998/dsnyder.3.html
I must make this clear, the orbits of the planets are not fractals: they are very close to perfect ellipses. However if we plot the predicted positions of a ...
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88 Astronomy: Definition, history and types - Space.com
https://www.space.com/16014-astronomy.html
Astronomy is one of the oldest scientific disciplines striving to ... Most of today's citizens of planet Earth live surrounded by the ...
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89 Medieval & Renaissance Astronomy up to Newton
https://www.atnf.csiro.au/outreach/education/senior/cosmicengine/renaissanceastro.html
Nicolaus Copernicus (1473 - 1543) · It could predict planetary positions to within 2°, the same as that of Ptolemy. · Retrograde motion of planets was explained ...
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90 Chasing an Asteroid's Shadow - Lucy Mission
http://lucy.swri.edu/2021/03/17/Occultations.html
They can then measure exactly when and for how long the star is hidden from view. Not only does this data help astronomers determine the ...
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91 Geometric patterns design with recursive pursuit relative motions
http://www.mi.sanu.ac.rs/vismath/liao/introduction.html
Moreover, the planets were vital to Astronomy. Eudoxas (408-355 BC), a Greek mathematician [1], who was the first to describe a theoretical explanation of ...
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92 How Math, And Not A Telescope, May Have Found A New ...
https://fivethirtyeight.com/features/how-math-and-not-a-telescope-may-have-found-a-new-planet/
Planet Nine, as the astronomers have dubbed it, would be the first ... oblong orbits that are roughly aligned, like pencils pointing in ...
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93 Written in the Stars: Astronomy and Astrology in Medieval ...
https://www.getty.edu/news/written-in-the-stars-astronomy-and-astrology-in-medieval-manuscripts
In a scheme known as “the music of the spheres,” Boethius assigned musical value to each of the known planets based on their positions in the ...
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94 Modern Astronomy - Scientific Models; Copernicus
http://www.physics.smu.edu/jcotton/ph1311/ch01b.htm
Scientists test their models by using them to make testable predictions about ... a model with circular orbits does not predict planet positions accurately.
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95 An Ancient Greek Astronomical Calculation Machine Reveals ...
https://www.scientificamerican.com/article/an-ancient-greek-astronomical-calculation-machine-reveals-new-secrets/
It seems that the device could be used to predict the positions of the sun, moon and planets on any specific day in the past or future. The ...
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96 03_Testbank.doc - UC Observatories
https://www.ucolick.org/~max/Astro18-2014/Lectures/Lecture12%202014%20Atmospheres/Bennett_TCP7_Testbank_Word/03_Testbank.doc
29) When Copernicus first created his Sun-centered model of the universe, it did not lead to substantially better predictions of planetary positions than the ...
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97 Lecture 6: Tycho and Kepler
https://www.astronomy.ohio-state.edu/weinberg.21/A161/lecture6.html
Extraordinary observations of planetary positions: King of Denmark, impressed, gives money to build two large observatories.
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