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My notes: Lecture #1
My notes: Lecture #1

... Redshift C&G Pg 14: original observation Scanned image for origin of phases of venus ask: which one heliocentric, which one earth centered (vote ?) Point: sometimes venus between earth and sun, but sometimes not. Wanted to promote heliocentric model, but could not explain lack of parallaxe. Used his ...
File
File

... celestial body follows as it travels around a sun or other body in space • Earth’s orbit is in the shape of an ellipse ...
Solar System by Halfs
Solar System by Halfs

... 1. Examine the data above, your measures (in cm), the Actual distances in AU to the planets, and Bode’s Law predictions. How close are Bode’s Law predictions and your measurements to the ACTUAL AU distance? Hint: look at the ratios, not the actual measures. That is, Jupiter is 5.2 times as far as Ea ...
Untitled - IES Bachiller Sabuco
Untitled - IES Bachiller Sabuco

... The numerous smaller bodies that habit in the solar system are the satellites of the planets; the large number of asteroids , (small rocky bodies that orbiting the Sun), mostly between Mars and Jupiter but there are asteroids elsewhere. The comets (small icy bodies) come and go from the other parts ...
Round_2_Solutions _2015
Round_2_Solutions _2015

... and this causes aberrations or distortion of the image and its position. It is a very mall angle to measure, beyond the technical level of telescope mounts of the 8th century for two separately mounted telescopes. The way to measure such a small angle would be to see the two different positions of V ...
Chapter 22
Chapter 22

... in the same direction, but not at the same speed • Because of this, there may be times when Earth passes a planet in its orbit • The planet will then appear to be moving in the opposite direction (backward) • This is called retrograde motion – The planet is not really moving backward (think about tw ...
Class 26: EXAM 2
Class 26: EXAM 2

... E) luminosity. 26) Which of the following best describes the axes of a Hertzsprung-Russell (H-R) diagram? A) surface temperature on the horizontal axis and radius on the vertical axis B) mass on the horizontal axis and stellar age on the vertical axis C) mass on the horizontal axis and luminosity on ...
Astronomy Unit Study Guide - Mrs. Miller`s 4th Grade Class
Astronomy Unit Study Guide - Mrs. Miller`s 4th Grade Class

... Astronomy Unit Study Guide ...
1 - Alice Pevyhouse
1 - Alice Pevyhouse

... will complete one circle ‘cycle’ and point back at the same point. This is known as? 24.The Earth’s axis of tilt can vary from its current 23.5 degree tilt (T/F) 26. In another 13,000 years, Earth's axial tilt will point in the opposite direction it does now. Assuming the other astronomical influenc ...
Earth`s Rotation and Effects
Earth`s Rotation and Effects

... of gravity by the moon across the earth, which varies with distance from the moon ...
Astro 205 Ch. 2
Astro 205 Ch. 2

... •  Early  observers  had  a  geocentric  model  of  the   universe  (Earth  at  center).   •  Ptolemy  created  a  model  in  which  planets  moved  on   small  wheels  aNached  to  a  larger  wheel.   •    The  small  circle  is  cal ...
Why do things move?
Why do things move?

... and Earth. Phases repeat every 27.3 days (lunar orbit). Full moon: • Moon on opposite side of Earth from Sun. ...
CT9b
CT9b

... Answer: The constant (T2/r3) = (1yr)2/(1 AU)3= 1 yr2 AU-3 . T2  1, T2  r 3 , T  r 3/ 2  2 3/ 2 yr r3 The point is that since T2/r3 is the same for all planets (says Kepler III), if we know the value of T2/r3 for any planet, then we know it for all the planets. For the Earth, T2/r3 = 1, so T2/r3 ...
Habitats Jr. 04
Habitats Jr. 04

... solar system, warming and giving light to all the planets, even those far, far away. The solar system is so big that traveling to the farthest planet would be like walking around Earth over 145,000 times. ...
Earth-Moon-Sun System (seasons, moon phases
Earth-Moon-Sun System (seasons, moon phases

... (The Sun is higher in the sky, so it hits the surface more directly.) Moving from the equator to the poles, the length of the day increases, and the sunlight becomes less direct. For example, in the middle of summer the North Pole has almost 24 hours of daytime, but it does not get as warm as region ...
S1-4-02 - Motion of Celestial Objects
S1-4-02 - Motion of Celestial Objects

... 3. Spend some time getting familiar with the applet before answering specific questions. Make sure you take turns while using this simulation. 4. Click on the “show angle” box. What does this do? 5. Using the applet demonstrate what the following moon phase looks like: (sketch what you see on the sc ...
2-The Earth in space
2-The Earth in space

... The outer planets are giant balls of gases with very small, solid cores. The outer planets rotate quickly, which makes for a short day; however, these planets take a long time to revolve once around the sun. Therefore, they have short days but long years. ...
sun notes
sun notes

... Different constellations appear as Earth revolves around the sun. _Polaris____________ (North Star), is the center of the constellation circle, positioned directly over the North Pole. Located at the end of the Little Dipper in the constellation Ursa Minor. ___circumpolar _stars__ are constellations ...
Einstein on Kepler
Einstein on Kepler

... the Earth, and the fixed stars existed, but no other planets. It would be impossible to establish anything empirically, except how the line from Sun to Earth changes during the course of the year (the apparent motion of the Sun against the fixed stars). It could be ascertained that these directions ...
Slide 1
Slide 1

... Besides the usual stars, clusters of stars, galaxies, and clusters and super- clusters of galaxies, the universe contains a number of other interesting objects. Among these are stars known as red giants, white dwarfs, neutron stars, black holes and exploding stars called novae and supernovae. In ad ...
Lunar Phases and Eclipses
Lunar Phases and Eclipses

... one nested inside the other. The outer or penumbral shadow is a zone where Earth blocks part but not all of the Sun’s rays from reaching the Moon. The inner or umbral shadow is a region where the Earth blocks all direct sunlight from reaching the Moon. ...
Intro to Astronomy
Intro to Astronomy

... Typically, spacecraft will use the gravity of the Earth or other planets to send them farther out into space. The method is called “gravity assist” or “sling-shot”. Otherwise, spacecraft would have to be much larger to carry enough fuel and more powerful engines to get anywhere. Sling-shotting throu ...
Venus - Uplift Education
Venus - Uplift Education

... Historically, Venus is well known as the morning star, or evening star. Named after the Roman goddess of love and beauty its surface is veiled by thick clouds. Beside the Sun and Moon, Venus is the brightest celestial object, shine with steady bright white light. Its physical dimensions are rather s ...
Astronomy - Learn Earth Science
Astronomy - Learn Earth Science

... How long is one rotation of Earth? How long is one revolution of Earth? For each of the following events state whether it is caused by the Earth’s rotation or revolution: Rising and setting of the sun: Rising and setting of the moon: The seasons: Changing Constellations: Movement of Stars through t ...
Phys133 SAMPLE questions for MidTerm#1
Phys133 SAMPLE questions for MidTerm#1

... 19) Suppose you see two stars: a blue star and a red star. Which of the following can you conclude about the two stars? Assume that no Doppler shifts are involved. A) The red star is more massive than the blue star. B) The blue star is more massive than the red star. C) The blue star has a hotter su ...
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Extraterrestrial skies



In astronomy, the term extraterrestrial sky refers to a view of outer space from the surface of a world other than Earth.The sky of the Moon has been directly observed or photographed by astronauts, while those of Titan, Mars, and Venus have been observed indirectly by space probes designed to land on the surface and transmit images back to Earth.Characteristics of extraterrestrial skies appear to vary substantially due to a number of factors. An extraterrestrial atmosphere, if present, has a large bearing on visible characteristics. The atmosphere's density and chemical composition can contribute to differences in colour, opacity (including haze) and the presence of clouds. Astronomical objects may also be visible and can include natural satellites, rings, star systems and nebulas and other planetary system bodies.For skies that have not been directly or indirectly observed, their appearance can be simulated based on known parameters such as the position of astronomical objects relative to the surface and atmospheric composition.
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