Astr 50 - Study guides, Class notes & Summaries

A graduate assistant in astronomy needs to measure the mass of a spiral galaxy. Which of the following observations would be important for her to make? - ️️Obtain the speed at which stars or gas near the outer regions of the galaxy are moving around A star whose temperature is increasing but whose luminosity is roughly constant moves in what direction on the H-R diagram - ️️Left A type of star cluster that contains mostly very old stars is - ️️a globular star cluster A white dwarf...

ASTR-91; Multiple Choice: The largest circular storm in our solar system is on the surface of which of the following planets? w) Jupiter x) Venus y) Uranus z) Earth ANSWER: W -- JUPITER ASTR-91; Short Answer: The rapidly moving stream of charged particles that is being driven away from the sun is known as what? ANSWER: SOLAR WIND ASTR-91; Multiple Choice: The biggest asteroid known is: w) Vesta x) Icarus y) Ceres z) Eros ANSWER: Y -- CERES ASTR-91; Multiple Choice: Rounded to the...