ASTR 1110 General Astronomy: The Solar System Thursday, 02 June 2005.

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Presentation transcript:

ASTR 1110 General Astronomy: The Solar System Thursday, 02 June 2005

Announcements  No observing – bad weather  Voyager software not that great Check out Distant Suns (  Get clicker by Monday!!!!  Let me know about project by today  Time to start homework  Monday, back in Duane Ancient History, Timekeeping

Today’s Plan  Celestial Navigation  Phases of the Moon  Eclipses  Planets  More Constellations  SBO – Phase and Eclipse Activities

Find your Latitude  Pick any star at night  Or use Sun during the day IF you know what day it is.  Subtract Declination from Altitude to get Altitude of Celestial Equator  Subtract Altitude of Celestial Equator from 90° to get Latitude

Example  Vega: Dec = 38° 44’  Alt CE = Alt * - Dec * Alt CE = 88° 44’ - 38° 44’ Alt CE = 50°  Lat = 90° - Alt CE Lat = 90° - 50° Lat = 40°

Inferior Planets Inferior Conjuction Superior Conjunction Greatest Eastern Elongation Greatest Western Elongation

Superior Planets Opposition Conjunction Eastern Quadrature Western Quadrature

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