Observation in Modern Astronomy |
Contents
THE GALAXY AND THE GALAXIES 222 | 7 |
THE MEASUREMENT AND ANALYSIS OF STELLAR RADIATION | 47 |
INTERRELATIONS BETWEEN OBSERVED QUANTITIES | 91 |
Copyright | |
4 other sections not shown
Common terms and phrases
absolute magnitude absorption angle angular Ap.J apparent magnitude astronomical atmosphere atoms axis Balmer binary bright stars brighter catalogue Cepheids circular velocity clouds colour components constant coordinates correct corresponding curve defined density determined direction discussed displacement distance modulus distribution dwarf Earth effects elliptical emission equator equinox errors exposure faint fainter Figure galactic clusters galactic plane Galaxy giant given globular clusters Hertzsprung-Russell diagram hydrogen instrument interstellar intrinsic ionised km/s known light luminosity main sequence mass maximum mean measured meridian method nebula novae number of stars objects observations Observatory orbit parallax parameters parsecs period photoelectric photographic photometry planetary plate position prism produced proper motion radial velocity range relative right ascension rotation RR Lyrae RR Lyrae stars Sandage sidereal slit spectral type spectrograph spectrum lines star image stellar subdwarfs supernova surface telescope temperature variable stars variation visual wavelength zenith distance
