Exam (elaborations)

Astronomy Final Exam Study Questions and Answers Graded A 2024

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Course
Astronomy

Institution
Astronomy

How long does it take stars to circle back to their same location? - 23 h, 56 m, 04 s How long does it take the Sun to return to the same position? - Sun returns to same approximate location every 24 h What is the general motion of the Sun and Moon? - Motion of sun and moon is East with respe...

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astronomy final exam
astronomy
astronomy final exam study questions and answers
astronomy final exam study questions

Institution Astronomy
Course Astronomy

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Astronomy Final Exam

Astronomy Final Exam Study Questions
and Answers Graded A 2024

How long does it take stars to circle back to their same location? - 23 h, 56 m, 04 s

How long does it take the Sun to return to the same position? - Sun returns to same
approximate location every 24 h

What is the general motion of the Sun and Moon? - Motion of sun and moon is East with
respect to stars

What is the general motion of Mars, Jupiter and Saturn? - Mars, Jupiter and Saturn also
move Eastward most of the time, but Westward when opposite the sun

What is the general motion of Mercury and Venus? - Mercury and Venus move
Eastward most of the time, but westward after maximum Eastward elongation

What do Star Trail measurements depend on? - The latitude of the observer

What path do the Sun and planets follow? - The ecliptic

How long does it take the Sun to travel around the ecliptic? - 365 days

How long does it take the moon to travel around the ecliptic? - 27 days

What is the order of moon phases from first to appear to last to appear? - New moon,
First Quarter, Full Moon, Third Quarter.

Astronomy Final Exam

, Astronomy Final Exam

How long between each phase of the Moon? - About 1 week

What time does the first quarter moon rise? - noon

What time does the full moon rise? - Sunset (6 PM)

What time does the new moon rise - Sunrise

What time does the third quarter moon rise? - Midnight

Why do seasons occur on Earth? - the changing angle with which sunlight hits the
Earth/ The changing North-South position of the Sun in the sky during the year

How do you find angles in small angle approximation? - Size/ Distance

How do you change radians to degrees? - Radians x (360 degrees/2pi) = " " degrees

What are main aspects of the geocentric model? - Immobile Earth near center,
retrograde motion was explained by using "epicycles,"

What are some predictions of the geocentric model? - - Mars, Jupiter and Saturn should
be brighter during
retrograde, since they are closer at that time.
- Mercury and Venus, if illuminated by the sun, should
always appear in crescent phase.
- Stars should show no parallax

Astronomy Final Exam

, Astronomy Final Exam

What are the properties of the heliocentric model? - Sun at center, heavenly spheres go
around it
Stars are very far away relative to sun
Daily motions are due to rotation of the earth
Sun's motion is apparent, due only to Earth's motion
Retrograde explained by Earth passing the other planets in their orbits (or them
passing us in the case of the inner planets Venus and Mercury).

What are Kepler's Laws? - The orbit of each planet is an ellipse, with the Sun at one
focus.
A line drawn from a planet to the sun sweeps out equal areas in equal times
p^2/a^3 = K

If a planet orbits the Sun at a distance of 5 AU,
approximately how long is its orbital period? - Approximately 11 years

If the moon orbited Earth twice as far away
as it is now, how would its period change? - Longer by a factor of 3

What phases can Venus show in the geocentric model? - Only crescent phases (Later
falsified)

What phases can Venus show in the heliocentric model? - All phases

A SOLAR ECLIPSE occurs when: - whenever there is a NEW moon AND the moon is
on the ecliptic.

What type of spectrum will glow with a hot, opaque gas or solid - Continuous Spectrum
(Rainbow background)

Astronomy Final Exam

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Astronomy Final Exam Study Questions and Answers Graded A 2024

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