Across
- 2. this type of magnitude is how we see stars from eart
- 4. these contain strong gravity to a point not even light can escape
- 5. type of galaxy that has blackholes at their center
- 7. measures the amount of light star gives off
- 8. idea that universe began about 13 billion years ago
Down
- 1. end of low mass stars
- 3. cloud of gas and dust
- 6. instrument used to analyze stars light