4
orbit
× 3 |
0
solar-eclipse
× 3 |
0
spectroscopy
|
0
universe
|
4
equinox
× 3 |
0
the-moon
× 2 |
0
spectra
|
0
cosmology
|
4
ephemeris
× 2 |
0
observational-astronomy
× 2 |
0
spectrometry
|
0
apparent-motion
|
4
solstice
× 2 |
0
space-travel
|
0
celestial-mechanics
|
0
galaxy
|
1
solar-system
× 3 |
0
cosmic-ray
|
0
precession
|
0
coordinate
|
1
history
× 2 |
0
space-probe
|
0
modeling
|
0
the-sun
|
1
telescope
|
0
archaeoastronomy
|
0
orbital-mechanics
|
0
terminology
|
1
fundamental-astronomy
|
0
earth
|
0
star
|
0
ecliptic
|
0
time
× 3 |
0
astrophysics
|
0
constellations
|
0
interstellar-travel
|