Ophiuchus

zodiac constellation straddling the celestial equator

Ophiuchus (Οφιούχος: say it 'Ofi-youkus'), is one of the 88 listed constellations. In Latin, it means "serpent-holder". It is near the celestial equator, and northwest of the center of the Milky Way. Ophiuchus is on the ecliptic, but is generally not considered to be in the zodiac. Its brightest star is Rasalhague.

Ophiuchus
Constellation
Ophiuchus
AbbreviationOph
GenitiveOphiuchi
Right ascension17
Declination0
Area948 sq. deg. (11th)
Main stars10
Bayer/Flamsteed
stars
59
Stars with planets4
Stars brighter than 3.00m5
Stars within 10.00 pc (32.62 ly)8
Brightest starα Oph (Ras Alhague) (2.1m)
Messier objects7
Meteor showersOphiuchids
Northern May Ophiuchids
Southern May Ophiuchids
Theta Ophiuchids
Bordering
constellations
Hercules
Serpens Caput
Libra
Scorpius
Sagittarius
Serpens Cauda
Aquila
Visible at latitudes between +80° and −80°.
Best visible at 21:00 (9 p.m.) during the month of July.

The Voyager 1 probe is within the borders of Ophiuchus.

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