Across
- 2. solar ____An eruption of gas from the sun's surface that occurs when the loops in sunspot regions suddenly connect
- 4. An interstellar cloud of gas and/or dust
- 5. the very darkest part of the moon's shadow of an eclipse
- 6. A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion.
- 9. __eclipse, Occurs when the Moon passes directly between the Sun and Earth and casts a shadow over part of Earth
- 12. __magnitude, the brightness of a star as seen from Earth
- 14. sun ____black spots on the sun's surface, cooler than the surrounding area because of the sun's magnetic field that keeps in heat and light
- 16. __hole; a region of space having a gravitational field so intense that no matter or radiation can escape.
Down
- 1. the lighter portion of the Moon's shadow that surrounds the umbra
- 3. __eclipse; the blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
- 7. __magnitude, how bright a star actually is
- 8. __dwarf, A small, hot, dim star that is the leftover center of an old star
- 10. a measure of the total amount of energy radiated by a star or other celestial object per second
- 11. Creation of energy by joining the nuclei of two hydrogen atoms to form helium.
- 13. the visible surface of the sun
- 15. radiant energy emitted by the sun from a nuclear fusion reaction that creates electromagnetic energy