General astronomy

General astronomy

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General astronomy

Serpens

Astronomy; General astronomy

A constellation of the northern hemisphere. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy and it remains one of the 88 modern constellations.

Pavo

Astronomy; General astronomy

A constellation in the southern sky. Its name is Latin for peacock. It is one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de ...

Camelopardalis

Astronomy; General astronomy

A large but faint constellation in the northern sky. The constellation was introduced in 1612 (or 1613) by Petrus Plancius. Some older astronomy books give an alternative spelling of the name, ...

A remnant star of a supernova explosion with an approximate size of the sun or larger , in which gravity has caused all matter to collapse into a giant nucleus composed only of neutrons. The collapse ...

Big Dipper

Astronomy; General astronomy

A prominent constellation in the northern sky that consists of 7 bright stars forming the pattern of a dipper. Also known as the Plough or the Saptarishi, it rarely sets below the horizon and is ...

Bulge of the earth

Astronomy; General astronomy

The extra length of the earth diameter at its equator due to the centrifugal force of the earth's spinning motion. As a result, the earth is a slightly flattened sphere. The earth's bulge causes ...

Earthshine

Astronomy; General astronomy

The faint glow which dimly illuminates the dark part of the new moon which is seen as a narrow crescent. During this time, the earth is completely illuminated by the Sun which is the source of ...