Skygazer's Almanac
Ace your homework & exams now with Quizwiz!
ecliptic
an imaginary line representing the sun's path
meridian
imaginary half circle stretching from the horizon due south, through the zenith, to the horizon due north
event line
tells when something happens in the sky
conjunction
the close pairings of two planets
wane
the decreasing phase of the moon
wax
the increasing phase of the moon
horizon
the line where the earth's surface meets the sky
transit
the moment when a celestial object crosses the meridian
rises
when a celestial object crosses the eastern horizon
sets
when a celestial object crosses the western horizon
opposition
when a planet is opposite of the sun in the sky and thus visible all night
