Search for tag: "stars"

49:45 ASTR 1523 Lecture 10 ASTR 1523 Lecture 10	ASTR 1523 Lecture 10 universe expansion energy hubble galaxies law earth temperature matter protons galaxy distance supernova rate stars hydrogen helium ball reason class From Nathan Kaib 0 likes 19 plays 0
50:28 ASTR 1523 Lecture 9 ASTR 1523 Lecture 9	ASTR 1523 Lecture 9 universe galaxy galaxies light doppler distance shift waves source observer spectrum class stars object wavelength body andromeda hubble velocity wavelengths From Nathan Kaib 0 likes 13 plays 0
49:56 ASTR 1523 Lecture 8 ASTR 1523 Lecture 8	ASTR 1523 Lecture 8 galaxies light stars star energy galaxy luminosity spectrum cepheid gas brightness distance ellipticals variables spirals level astronomy wavelengths lot cloud From Nathan Kaib 0 likes 13 plays 0
52:30 ASTR 1523 Lecture 6 ASTR 1523 Lecture 6	ASTR 1523 Lecture 6 light radiation wavelengths spectrum wavelength body star sun energy rays temperature reason stars surface dust universe photons eyes albedo planet From Nathan Kaib 0 likes 21 plays 0