320 likes | 337 Views
Discover the wonders of the cosmos with detailed star charts and exercises, learn about constellations, astrology connections, and celestial measurements. Engage in thought exercises to enhance your understanding of the universe.
E N D
Chapter 2 Discovering the Universe for Yourself
SFA Star Charts • Star Chart 1 - Northern Region • Star Chart 2 - Equatorial Region • Star Chart 3 - Equatorial Region • Star Chart 4 - Southern Region
SFA Star Chart 1 Right Ascension North Star “Little Dipper” Declination “Pointer Stars” “Big Dipper”
“King” “Queen” SFA Star Chart 1
Chart 1 Problem • Find the coordinates of Capella.
Summer Solstice Ecliptic Orion Celestial Equator Vernal Equinox Autumnal Equinox
“Summer Triangle” Celestial Equator Autumnal Equinox Vernal Equinox Winter Solstice Ecliptic
Star Chart Exercise • 1. Where are the Zodiac Constellations? • Circle their names on the star charts. • 2. Find the coordinates of Betelgeuse and Sirius. • 3. Where is the Sun today? • Give the RA, DEC, and constellation
Astrology Connection • Where is the Sun on your Birthday? • Note: Astrological signs no longer correspond to the location of the Sun on your day of birth! • Have we been reading the wrong horoscopes all this time?
Constellations • Constellations are recognizable patterns of stars in the sky. • There are 88 constellations. (e.g. Orion) • The 12 constellations along the ecliptic on your star chart are called the Zodiac Constellations.
Asterisms • Asterism are recognizable patterns of stars that is not one of the 88 constellations. • For Example: The Big Dipper
The Sky Dome • Celestial Meridian • Polaris • Zenith • Celestial Equator
Measuring Angles • altitude - the angle of a star above the horizon • The North Star, Polaris, is not the brightest star in the sky but remains in a fixed position in the sky. • The angle of Polaris above your horizon is the same as your latitude in degrees.
Thought Exercise • Where are you if Polaris is directly overhead? • Where are you if Polaris is on your horizon?