Jishui

Jishui (ο Geminorum) is a yellow-white giant star in the constellation Gemini. With an apparent magnitude of 4.9 it is the 1432nd-brightest star in the night sky, and it is about 169 light-years from Earth.

Finder chart showing where Jishui is in the constellation Gemini
Jishui (circled) in Gemini, with the surrounding constellations and bright stars.
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Free to use with credit: Atlas of the Sky (constellationmap.org), CC BY 4.0 · More

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Facts

ConstellationGemini
Designationο Geminorum (Omicron Geminorum), HR 2930
Apparent magnitude4.9 (1432nd brightest)
Spectral typeF3III
Coloryellow-white (B−V 0.40)
Distanceabout 169 light-years
Right ascension7 h 39.2 min
Declination+34.58°
Best monthMarch (at about 9 pm)

Sources: star positions, magnitudes and colors from the Yale Bright Star Catalogue; constellation boundaries and star names from the IAU; areas and distances from Wikidata; stick figures by M. van der Sluys. How the maps are made.

How to find Jishui

Jishui is in Gemini. From 40° N it is highest in the south in March evenings, about 85° above the horizon. From 35° S it reaches about 20° in the north. Nearby bright stars: Castor (3° away), Pollux (7° away) and Menkalinan (22° away).

Gemini constellation →

Other named stars in Gemini

PolluxAlhenaCastorTejatMebsutaPropusAlzirrWasatMekbuda

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