fluxluminosityapparent星等siriusmagnitude 1DiscoveryofWhiteDwarfs—1Oct•Adams’discovery•Magnitude,apparent&absolute•Whyarewhitedwarfsmuchsmallerthanstarslikethesun?•Normalgas°enerategasSiriusA&Bhttp://chandra.harvard.edu/photo/2000/0065/0065_optical.jpg•Homework4and5aredueonWed,Oct8.Nolatepape...
Luminosity is the energy a star pumps out every second. The lower the star's absolute magnitude, the more luminous the star is. For instance, in Sirius, the star's absolute magnitude is 1.45, and its luminosity is 25.82. Compare it to Tarazed, which has an absolute magnitude of -3.03 ...
The purpose of this calibration is to obtain data on flux standards through WF/PC. These stars are 9 - 14 magnitude. This proposal replaces previous proposals ABSOLUTE UV CALIBRATION (1322) and ABSOLUTE FLUX STANDARDS (1331). Two brighter target stars have been added. Pick the brightest star...