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| the time when the sun is farthest south from the celestial equator occurring around December 21st |
| the angular distance of a heavenly body above the horizon |
| big dipper | |
| —n | |
| Also called: roller coaster (in amusement parks) a narrow railway with open carriages that run swiftly over a route of sharp curves and steep inclines | |
| Big Dipper | |
| —n | |
| the US and Canadian name for Plough | |
| Big Dipper
An asterism composed of seven stars in the constellation Ursa Major. Four stars form the bowl and three form the handle in the outline of a dipper. |
A constellation in the northern sky. The two stars on the far end of the bowl of the dipper point toward the North Star. The Big Dipper is part of the constellation Ursa Major (the Great Bear).