Ophiuchus
Constellation straddling the celestial equator / From Wikipedia, the free encyclopedia
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For other uses, see Ophiuchus (disambiguation).
Ophiuchus (/ˌɒfiˈjuːkəs/) is a large constellation straddling the celestial equator. Its name comes from the Ancient Greek ὀφιοῦχος (ophioûkhos), meaning "serpent-bearer", and it is commonly represented as a man grasping a snake. The serpent is represented by the constellation Serpens. Ophiuchus was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one of the 88 modern constellations. An old alternative name for the constellation was Serpentarius (/ˌsɜːrpənˈtɛəriəs/).[1]
Quick Facts Abbreviation, Genitive ...
Constellation | |
Abbreviation | Oph |
---|---|
Genitive | Ophiuchi |
Pronunciation | /ˌɒfiˈjuːkəs/ genitive: /ˌɒfiˈjuːkaɪ/ |
Symbolism | the serpent-bearer |
Right ascension | 17h |
Declination | −8° |
Quadrant | SQ3 |
Area | 948 sq. deg. (11th) |
Main stars | 10 |
Bayer/Flamsteed stars | 65 |
Stars brighter than 3.00m | 5 |
Stars within 10.00 pc (32.62 ly) | 11 |
Brightest star | α Oph (Rasalhague) (2.08m) |
Messier objects | 7 |
Meteor showers |
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Bordering constellations | |
Visible at latitudes between +80° and −80°. Best visible at 21:00 (9 p.m.) during the month of July. |
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