ANTA01H3 Lecture : ASTA01 CHEAT SHEET.docx
Document Summary
Milky way: the hazy band of light that circles our sky, produced by the glow of our galaxy spiral arms: long spiral pattern of bright stars, star clusters, gas, and dust. Spiral arms extend from the center to the edge of the disk of spiral galaxies constellation: one of the stellar patterns identified by name, usually of mythological gods, people, animals, or objects. Also, the region of the sky containing that star pattern asterism: a named grouping of stars that is not one of the recognized constellations magnitude scale: the astronomical brightness scale. The larger the number, the fainter the star apparent visual magnitude (mv): a measure of the brightness of a star as seen by human eyes on earth flux: a measure of the flow of energy out of a surface. Also, the beginning of spring summer solstice: the point on the celestial sphere where the sun is at its most northerly point.
