文档介绍：Sagittarius (constellation) 1
Sagittarius (constellation)
Sagittarius
Constellation
List of stars in Sagittarius
Abbreviation Sgr
Genitive Sagittarii
Pronunciation /ˌsædʒɨˈtɛəriəs/, genitive /ˌsæ/
Symbolism the Archer
Right ascension 19
Declination −25
Family Zodiac
Quadrant SQ4
Area 867 sq. deg. (15th)
Main stars 12, 8
Bayer/Flamsteed 68
stars
Stars with s 32
7
Stars brighter than
Stars within pc ( ly) 2
Brightest star
ε Sgr (Kaus Australis) ()
Nearest star Ross 154
( ly,  pc)
Messier objects 15
Bordering • Aquila
constellations • Scutum
• Serpens Cauda
• Ophiuchus
• Scorpius
• Corona Australis
• Telescopium
• Indus (corner)
• Microscopium
• Capricornus
Sagittarius (constellation) 2
Visible at latitudes between +55° and −90°.
Best visible at 21:00 (9 .) during the month of August.
Sagittarius is one of the constellations of the zodiac. It is one of the 48 constellations listed by the 2nd-century
astronomer Ptolemy and remains one of the 88 modern constellations. Its name is Latin for the archer, and its symbol
is (Unicode U+2650 ♐), a stylized arrow. Sagittarius monly represented as a centaur drawing a bow. It lies
between Scorpius and Ophiuchus to the west and Capricornus to the east.
Visualizations
As seen from the northern hemisphere, the
constellation's brighter stars form an easily
recognizable asterism known as 'the Teapot'.
The stars δ Sgr (Kaus Media), ε Sgr (Kaus
Australis), ζ Sgr (Ascella), and φ Sgr
(Nanto) form the body of the pot; λ Sgr
(Kaus Borealis) is the point of the lid; γ2 Sgr
(Alnasl) is the tip of the spout; and σ Sgr
(Nunki) and τ Sgr the handle (the closest
bright star to the possible origin of the
Wow! signal.)
Marking the bottom of the teapot's "handle"
(or the shoulder area of the archer, are the
bright star ( magnitude) Zeta Sagittarii
(ζ Sgr), named Ascella, and the fainter T