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Intro to Astronomy
Science and the Universe
The Birth of Astronomy: Sky Observation
Orbits and Gravity
Earth, Moon, and Sky
Astronomical Instruments
Exploring Our Solar System
Earth as a Planet
Cratered Worlds
Earthlike Planets
The Giant Planets
Rings, Moons, and Pluto
Comets and Asteroids: Solar System Debris
Cosmic Samples: Solar System Origins
The Sun
The Sun
Analyzing Starlight
The Stars
Celestial Distances
Interstellar Gas and Dust
Star Formation and Exoplanet Discovery
Stars from Adolescence to Old Age
The Death of Stars
Black Holes and Curved Spacetime
The Milky Way Galaxy
Galaxies
Active Galaxies and Supermassive Black Holes
Galaxy Evolution and Distribution
The Big Bang
Life in the Universe
Glossary
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Intro to Astronomy
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$F = G \frac{m_1 m_2}{r^2}$
$M_{BH}- ext{sigma}$ Relation
101955 Bennu
21 cm Hydrogen Line
21-cm Line
21-cm line
21-cm radio line
25143 Itokawa
2dF Galaxy Redshift Survey
3C 273
3C 48
433 Eros
51 Pegasi b
61 Cygni
A
A ring
A-type Star
A-type stars
Abell 1689
Abell 2218
Abell 370
Abiogenesis
Ablation
Absolute Magnitude
Absorption
Absorption Line Spectra
Absorption Lines
Absorption Spectra
Absorption Spectrum
Absorption spectrum
Abundance Analysis
Accelerate
Accelerating Expansion
Accelerating Expansion Model
Acceleration Due to Gravity
Accretion
Accretion
Accretion Disk
Accretion disk
Accretional Heating
ACE
Achondrite
Acidophiles
Acoustic Oscillations
Action at a Distance
Active Galactic Nuclei
Active Galactic Nuclei (AGN)
Active galactic nuclei (AGN)
Active Galactic Nucleus
Active galaxies
Active Optics
Active region
Adams
Adams Ring
Adaptive optics
Adaptive Optics
Aeolian Erosion
Aeolian Processes
Afterglow
Afterglows
Age-Metallicity Relation
AGN
Air Cherenkov Telescope
Air Mass
Air Showers
Alan Guth
Albedo
Albert Einstein
Albireo
Alcor
Alfred Wegener
Algol
ALH84001
Alkaliphiles
Allan Hills
Allan Hills 84001
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About Us
About Fiveable
Blog
Careers
Testimonials
Code of Conduct
Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Crisis Text Line
Request a Feature
Report an Issue
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
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