AST 104 Stars and Galaxies


Important Terms for Chapter 3:



Celestial sphere
Diurnal motion
Polaris
Precession
Circumpolar constellation
Ecliptic
North, south celestial poles
Celestial equator
Summer solstice
Winter solstice
Vernal equinox
Autumnal equinox
Zodiac
Right ascension
Declination
Hour circle
Sidereal period (of moon)
Synodic period (of moon)
Perihelion
Aphelion
Sidereal day
Apparent solar day
Mean solar day







Prof. Donna Weistrop

University of Nevada, Las Vegas