Micru created this task.
Herald added subscribers: StudiesWorld, Aklapper.
TASK DESCRIPTION
In astronomy, a celestial coordinate system is a system for specifying
positions of celestial objects: satellites, planets, stars, galaxies, and so
on. Coordinate systems can specify a position in 3-dimensional space, or merely
the direction of the object on the celestial sphere, if its distance is not
known or not important.
The celestial equivalent of latitude is called **declination **and is
measured in degrees North (positive numbers) or South (negative numbers) of the
Celestial Equator. The celestial equivalent of longitude is called** right
ascension**.
The most popular celestial coordinate system is the **equatorial coordinate
system** and, similarly to the geographic coordinate data type, it requires of
two angles, right ascension and declination. The nomenclature is a bit
different using hour angles (hours ( h ), minutes ( m ), and seconds ( s ))
instead of degrees (degree, (°) minute ('), second ('')), which means that a
circumference is 24h instead of the customary 360°.
Example: https://en.wikipedia.org/wiki/Sirius
TASK DETAIL
https://phabricator.wikimedia.org/T127950
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To: Micru
Cc: Aklapper, Micru, StudiesWorld, Izno, Wikidata-bugs, aude, Mbch331
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