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- 1. Multiple ChoiceGloria is at the observatory and is examining a newly discovered star through a powerful telescope. She wants to find out how bright the star actually is. What information does she need to calculate the absolute magnitude of a star?Apparent magnitude and distance from Earth of the star.Color and distance from Earth of the starColor of the starColor and composition of the star
- 2. Multiple Choice
The table compiles information about the distance of various stars from Earth, their apparent magnitude, and their absolute magnitude.
Which of the stars listed in the table above would look the brightest when compared to other stars from an equal distance?SiriusBetelgeuseRigelAldebaran - 3. Multiple ChoiceThe table compiles information about the distance of various stars from Earth, their apparent magnitude, and their absolute magnitude.
Which star has the least luminosity?SiriusRigelArcturusBetelgeuse - 4. Multiple ChoiceThe table compiles information about the distance of various stars from Earth, their apparent magnitude, and their absolute magnitude.
Which star is the closest to earth?BetelgeuseVegaArcturusAldebaran - 5. Multiple ChoiceHow bright a star appears in the night sky relative to other stars seen there is called itsluminosityspectral classabsolute magnitudeapparent magnitude
- 6. Multiple ChoiceBetelgeuse has a very high luminosity but does not out a lot of sunlight.Which of the following explains this?cant be smaller then the sunBetelgeuse is at the lower end of the main sequence.Betelgeuse is at the upper end of the main sequence.must have a much larger surface area than the Sun.
- 7. Multiple ChoiceWhat is Stellar Luminosity?Ketzia's faceThe total power a star radiates into spaceMy smilehow much sun light a star outputs
- 8. Multiple ChoiceHow is Stellar Luminosity Calculated?Staring at the sun for as long as you canFrom a thermometerHow many lick to the center of a tootsie popFrom a star's measured apparent brightness and distance
- 9. Multiple ChoiceAn astronomer observes two stars and finds that they have the same apparent magnitude. Based on his observation, which conclusion could not be true?Both stars are the same distance from the Earth and emit the same amount of energy.One star is farther from the Earth, and emits more energy than the other one.Both stars have the same absolute magnitude and are the same distance from the Earth.One star has greater luminosity and is closer to the Earth than the other one.
- 10. Multiple ChoiceThe table compiles information about the distance of various stars from Earth, their apparent magnitude, and their absolute magnitude.
Which of the stars listed in the table above would look the dimmest when observed from Earth?SiriusRigelAldebaranArcturus - 11. Multiple Choicean apparent shift in the position of an object when viewed from different locationslight yearabsolute magnitudeparallaxspectrum
- 12. Multiple ChoiceThe brightness of a star we see from Earth is calledabsolute magnituderelative magnitudeapparent magnitudeobvious magnitude
- 13. Multiple ChoiceThe Big Dipper is part of one of the best-known constellations known asOrionAriesLeoUrsa Major
- 14. Multiple Choicethe amount of light radiated into space per second by a starluminosityapparent magnitudeabsolute magnitudestar cluster
- 15. Multiple ChoiceWhat measurement do we use to measure distances to a star?Light DayLight YearAUKilometer
- Answer choicesTagsAnswer choicesTags