Astronomers - Study guides, Class notes & Summaries
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ASTR 114 Astronomy - Final Exam "Cheat Sheet" | Latest 2023-2024
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-1.5 magnitude Sirius appears 25x brighter 
than 2 magnitude Polaris. 
 “All neutron stars are pulsars, but not all 
pulsars are neutron stars” FALSE 
 “Spectroscopic Binary” is the term given to 
a pair of stars that we can determine are 
orbiting each other only by measuring their 
periodic Doppler shifts. 
 A 6.8 solar mass neutron star does NOT 
exist. 
 A loop of gas and charged particles 
following the magnetic field lines between 
sunspot’s poles is a Prominence/...
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GACE Middle Grades Science Latest Update with Verified Answers
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GACE Middle Grades Science Latest 
Update with Verified Answers 
 
tidal hypothesis Theory that the solar system started with a near collision of sun and large 
star. Few astronomers believe this theory. 
 
condensation hypothesis solar system began with rotating clouds of dust and gas. 
Condensation happened in center to form sun, and smaller parts of clouds formed. More 
astronomers believe in this idea. 
 
Core Outer core- liquid; inner core- solid. Very dense in center. Believed that core is...
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ASTR 101 Practice – Uvic Questions with Complete Solutions
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Even though it is not realistic, why is the celestial sphere model useful? Correct Answer-Describes the locations of things "on" the sky. 
 
Declination is measured from the _________ to the __________ Correct Answer-celestial equator; celestial poles 
 
How do you measure right ascension? Correct Answer-Measured from "First point in Aries" around the celestial equator 
 
Latitude is to declination as longitude is to __________ Correct Answer-Right Ascension 
 
Why are the zodiacal constella...
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University of New South Wales (UNSW): PHYS 1160 Introduction to Astronomy Final Test Bank
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1. What is the single most important reason that astronomers have learned more about our planetary system in 
the last 30 years than all of history before then. 
a. astronomers today are a lot smarter than astronomers were earlier 
b. the Hubble Space Telescope 
c. we have been able to send spacecraft to visit many planets and satellites 
d. radio telescope arrays allow astronomers to make out details on the planets that they have 
never been able to see before 
e. the planets (moving in their s...
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ASTR 101: Exam 1 Questions with Complete Solutions
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Constellations Correct Answer-Recognizable patterns of stars in the sky (big dipper, orions belt) 
Makes locating stars easier. 
The official borders were set in 1928 by the International Astronomical Union (IAU). 
 
How many constellations are there? Correct Answer-88 
 
Celestial sphere Correct Answer-our view of the night sky; an artificial sky map created by astronomers that applied a coordinate system to it, analogous to the coordinate system of north-south latitude and east-west longitude ...
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GACE Middle Grades Science Exam Guide Questions and CORRECT Answers
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tidal hypothesis - Ans Theory that the solar system started with a near collision of sun and 
large star. Few astronomers believe this theory. 
condensation hypothesis - Ans solar system began with rotating clouds of dust and gas. 
Condensation happened in center to form sun, and smaller parts of clouds formed. More 
astronomers believe in this idea. 
Core - Ans Outer core- liquid; inner core- solid. Very dense in center. Believed that core is 
80% iron. Helps heat oceans. 
Mantle - Ans Surr...
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MSU ISP 205 Final Exam Questions and Answers
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Rank the following 4 items by how long it takes for light to reach us from these 
object, from shortest to longest. 
The Andromeda Galaxy 
the center of the Milky Way 
Pluto 
Sun. 
Ans- Sun, Pluto, center of the Milky Way, the Andromeda Galaxy. 
The current best estimate for the age of the universe is about 
Ans- 14 billion years. 
What do astronomers mean when they say the universe is expanding? 
Ans- Average distances are increasing between most galaxies. 
Which statement is false? 
1. A co...
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Astronomy 101 Test #1 (Chapters 1-4) Questions with Complete Solutions
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How long does it take the Earth to orbit the Sun? Correct Answer-one year 
 
What is the name given to the path of the Sun as seen from Earth? Correct Answer-Ecliptic 
 
The ecliptic is best described as a(n): Correct Answer-plane 
 
How many months apart are Winter Solstice and the Vernal Equinox? Correct Answer-3 months 
 
Over what place on Earth is the Sun directly overhead on the Autumnal equinox? Correct Answer-the equator 
 
When you are facing Polaris you are... Correct Answer-...facing ...
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ASTR 123|435 ACTUAL QUESTIONS AND ANSWERS|2024|75 Pages
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___________ forces caused the gas in the thin disk to fragment into clouds or clumps with masses like those of star clusters - ️️gravitational 
____________ black hole: a black hole whose mass exceeds 1000 solar mass - ️️supermassive 
___________________ is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other - ️️friction 
(In the absence of a strong magnetic field), what is the chief factor that determines what typ...
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GACE Middle Grades Science Questions & Correct Answers | Latest Update |Already Graded A+
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tidal hypothesis 
: Theory that the solar system started with a near collision of sun and large star. 
Few astronomers believe this theory. 
condensation hypothesis 
: solar system began with rotating clouds of dust and gas. Condensation happened 
in center to form sun, and smaller parts of clouds formed. More astronomers believe in 
this idea. 
Core 
: Outer core- liquid; inner core- solid. Very dense in center. Believed that core is 
80% iron. Helps heat oceans. 
Mantle 
: Surrounds core. ...
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