Announcements. Homework 5 due Monday Solutions to test are posted near south entrance to Science Lab building (until next test) Second test will be next week (W, Th) Looks like a great weekend for projects! (Due two weeks from today). Spectroscopy. 29 September 2006. Today:.
29 September 2006
Shorter wavelengths implies it’s moving toward us
Wavelengths are shifted by about 10 units (Angstroms) out of 4000, or 1 part in 400. Therefore this object is moving toward us at 1/400 the speed of light (750 km/s)