10 Astronomy Words List, Astronomical Terms
1. dwarf star
2. ionosphere
3. radiation
4. sun
5. north star
6. roche limit
7. parallax
8. kirkwood gaps
9. hydrogen
10. visual magnitude
10 Astronomy Words List, Astronomical Terms
1. dwarf star
2. ionosphere
3. radiation
4. sun
5. north star
6. roche limit
7. parallax
8. kirkwood gaps
9. hydrogen
10. visual magnitude