Across
- 4. a natural luminous body visible in the night sky.
- 6. the central part of a celestial body (such as the sun) usually having different physical properties from the surrounding parts
- 8. the relative quantity of radiation emitted by a celestial source (such as a star)
- 11. any of 88 arbitrary configurations of stars or an area of the celestial sphere covering one of these configurations
- 12. nebula the nebulosity surrounding a star.
- 13. Dwarf a small hot star of low intrinsic brightness usually with a mass approximately equal to that of the sun but with a density many times larger.
- 16. Dwarf a star having substantially lower surface temperature, intrinsic luminosity, mass, and size than the sun
- 17. the explosion of a star in which the star may reach a maximum intrinsic luminosity one billion times that of the sun
Down
- 1. a cloud of gas and dust in space believed to develop into a star
- 2. Dwarf collapsing clouds of gas and dust that don't quite manage to make it as stars.
- 3. measures the amount of "metals" a star has.
- 5. often referred to as the surface of the star.
- 7. Nebula a usually compact luminous ring-shaped nebula that is composed of matter which has been ejected from a hot star at its center
- 9. Stars star systems of only two stars together.
- 10. star a dense celestial object that consists primarily of closely packed neutrons and that results from the collapse of a much larger stellar body.
- 12. Mass the mass of our sun.
- 14. Giant Some of the hottest stars in the Universe
- 15. Hole objects of extreme density, with such strong gravitational attraction that even light cannot escape from their grasp if it comes near enough.