2/23/2012 NAME: Jason Merchant
1. Rigel is more luminous than Sirius B. Rigel and Sirius B have the same temperature.
Which star has the greater surface area?
b. Sirius B
c. The same
d. Not enough information
2. You observe two stars
Extra Credit Opportunities for ASTR 1101
General Information sheet
Multiple Submission Choices
Go to the Highland Road Observatory every Friday night and write a small summary about the
talk of that evening. You will receive 0.5% extra credit points to
at, ocean rise 1.5-4 feet,
depend on H, H=70+-2 star arcmin = 60 arcsec, gravity ative angular size vs. angular size (perfect fit)
l ax = parsec) g up, light blushifted has parrallaxed one arcsecond
edshifted aticles can be ripped apart and remnants are e