Q. Which of the following is NOT a characteristic used to classify stars?

Q. Define star constellations.

Q. True or False - The most common elements that compose a star are: hydrogen, helium, and sulfur.

Q. True or False - A star's color is directly related to its temperature.

Q. The brightness of a star as seen from earth is defined as:

Q. The brightness the star would have if it were a standard distance from earth.

Q. A light year is a measurement of:

Q. True or False - A star with more mass will last longer than a star with less mass.

Q. True or False - In comparison with the many other stars, the sun is very, very large.

Q. The cooled core of a star that has run out of fuel.

Q. Explosion of a high-mass star.

Q. An object whose gravity is so strong that nothing can escape.

Q. A huge group of single star systems, star clusters, dust, and gas bound together by gravity.

Q. True or False - The hottest stars are blue.

Q. Which of the following is a name used for stars: