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Serpens

constellation, straddling the celestial equator, consisting of two non-connected parts (Serpens Caput and Serpens Cauda)

Serpens is a constellation in the northern sky.

Serpens
Constellation
Serpens CaputSerpens Cauda
AbbreviationSer
GenitiveSerpentis
Pronunciation/ˈsɜːrp[invalid input: 'ɨ']nz/,
genitive /sərˈpɛnt[invalid input: 'ɨ']s/
Symbolismthe Snake
Right ascensionSerpens Caput: 15h 10.4m to 16h 22.5m
Serpens Cauda: 17h 16.9m to 18h 58.3m
DeclinationSerpens Caput: 25.66° to −03.72°
Serpens Cauda: 06.42° to −16.14°
AreaSerpens Caput: 428 sq. deg.
Serpens Cauda: 208 sq. deg.
Total: 637 sq. deg. (23rd)
Main stars11
Bayer/Flamsteed
stars
57
Stars with planets15
Stars brighter than 3.00m1
Stars within 10.00 pc (32.62 ly)2
Brightest starα Ser (Unukalhai) (2.63m)
Messier objects2
Bordering
constellations
Serpens Caput:
Corona Borealis
Boötes
Virgo
Libra
Ophiuchus
Hercules

Serpens Cauda:
Aquila
Ophiuchus
Sagittarius
Scutum
Visible at latitudes between +80° and −80°.
Best visible at 21:00 (9 p.m.) during the month of July.