Vocabulary Quiz - VocabForce

1. commensurability

orbital ratio of two bodies with simple integer ratio

early stage star still gathering mass

related to stars

loss of light passing through Earth's atmosphere

2. supernova

velocity causing a celestial body to disintegrate

massive stellar explosion

Sun's magnetic field extending into space

sky visible during nighttime

3. culmination

brightest star in the night sky

study of celestial meridians

highest point a celestial object reaches in sky

outer layer of a star

4. telluric star

flat surface containing orbit

star observed through Earth's atmosphere

daily apparent movement of stars due to Earth's rotation

jet of material from Sun's surface

5. gamma-ray astronomy

study of universe using gamma-ray observations

Moon's visible shape over a month

gravity stretching objects due to nearby masses

physics governing celestial bodies and universe

6. projected separation

apparent distance between objects in view

stars moving together through space

baseline for celestial coordinate measurement

expanse of space visible from Earth's surface

7. orbit plot

graph representing orbital motion

orbit passing over Earth's poles

study of celestial objects at submm wavelengths

hot, blue, massive star with high surface temperature

8. cosmic dust

elusive subatomic particle

objects per unit volume

speed at which star's equator becomes unstable

tiny solid particles in space affecting light and heat

9. partial solar eclipse

part of Sun obscured

Earth's great circle dividing northern and southern hemispheres

relating to planets

close approach of celestial objects as seen from a vantage point

10. protoplanetary disk

rotating disk of material around a young star

imaginary line through Earth's poles

luminous celestial body made of hot gases

a galaxy shaped like an elongated ellipsoid

11. astrobiology

galaxy luminosity and rotation link

region around a planet influenced by magnetic field

stars sharing common motion

study of life in the universe and its origins

12. main sequence

study of space-time ripples from massive bodies

boundary where magnetic forces balance plasma inertia

apparent shift due to Earth's movement

star phase fusing hydrogen in core

13. New General Catalogue

failed star with insufficient mass for nuclear fusion

measure of time since last passage of a star crossing local meridian

alignment of celestial bodies in apparent line

astronomical object catalog

14. galactocentric distance

stars in a galaxy's extended disk

curve representing stars of same age

distance from galaxy's center

gaseous envelope surrounding a planet or star

15. Am star

telescope mounted on an aircraft or balloon for observations

chemically peculiar star with strong metal lines

large planet with icy composition, e.g., Neptune

closest point in orbit

16. total solar eclipse

90-degree phase angle between celestial objects

smaller galaxy orbiting a larger one

Moon blocks Sun completely

orbit aligning with a body's rotation

17. orbit

gas cloud with molecules, star-forming

path of celestial object around a star

expanding gas around dying star

oscillation of celestial bodies like the Moon

18. surface gravity

remnant core of a dead star

very small meteorite in atmosphere

gravity experienced at a celestial body's surface

event marking start of fall in northern hemisphere

19. secular

system of two stars orbiting a common center

long-term gradual change

planets beyond Earth's orbit

total energy emitted by an object

20. solar moss

study of space-time ripples from massive bodies

bright, fuzzy features on the Sun's surface

great circle passing through celestial poles and a point

graph representing orbital motion

Vocabulary Quiz:

1. commensurability

2. supernova

3. culmination

4. telluric star

5. gamma-ray astronomy

6. projected separation

7. orbit plot

8. cosmic dust

9. partial solar eclipse

10. protoplanetary disk

11. astrobiology

12. main sequence

13. New General Catalogue

14. galactocentric distance

15. Am star

16. total solar eclipse

17. orbit

18. surface gravity

19. secular

20. solar moss

Select vocabulary category you want to browse:

Vocabulary Quiz:

1. commensurability

2. supernova

3. culmination

4. telluric star

5. gamma-ray astronomy

6. projected separation

7. orbit plot

8. cosmic dust

9. partial solar eclipse

10. protoplanetary disk

11. astrobiology

12. main sequence

13. New General Catalogue

14. galactocentric distance

15. Am star

16. total solar eclipse

17. orbit

18. surface gravity

19. secular

20. solar moss

Select vocabulary category you want to browse:

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