Serpens

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Serpens
Constellation
Serpens CaputSerpens Cauda
AbbreviationSer
GenitiveSerpentis
Pronunciation/ˈsɜːrpnz/,
genitive /sərˈpɛnts/
Seembolismthe Snake
Richt ascensionSerpens Caput: 16 h
Serpens Cauda: 18 h
DeclinationSerpens Caput: +10°
Serpens Cauda: −5°
QuadrantSerpens Caput: NQ3
Serpens Cauda: SQ3
Aurie637 sq. deg. (23rd)
Main starns9
Bayer/Flamsteed
stars
57
Starns wi planets13
Starns brichter than 3.00m1
Starns within 10.00 pc (32.62 ly)2
Brichtest starnα Ser (Unukalhai) (2.63m)
Nearest starnGJ 1224
(24.60 ly, 7.54 pc)
Messier objects2
Borderin
constellations
Serpens Caput:
Corona Borealis
Boötes
Virgo
Libra
Ophiuchus
Hercules

Serpens Cauda:
Aquila
Ophiuchus
Sagittarius
Scutum
Veesible at latitudes atween +80° an −80°.
Best veesible at 21:00 (9 p.m.) durin the month o Julie.

Serpens ("the Serpent", Greek Ὄφις) is a constellation o the northren hemisphere. It wis ane o the 48 constellations leetit bi the 2nr century astronomer Ptolemy an it remains ane o the 88 modren constellations defined bi the Internaitional Astronomical Union.

It is unique amang the modren constellations in bein split intae twa non-contiguous pairts, Serpens Caput (Serpent's Heid) tae the wast an Serpens Cauda (Serpent's Tail) tae the east. Atween these twa halves lies the constellation o Ophiuchus, the "Serpent-Bearer". In figurative representations, the body o the serpent is representit as passin behind Ophiuchus atween μ Ser in Serpens Caput an ν Ser in Serpens Cauda. The brichtest starn in Serpens is Unukalhai or Cor Serpentis "Serpent's Heart", wi an apparent magnitude o 2.63.

Coordinates: Sky map 17h 00m 00s, +03° 00′ 00″