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EntityQ14040· pop 22· linked from 259 articles

Also known as Kaus Borealis, 22 Sagittarii, 22 Sgr, λ Sgr, λ Sagittarii, HD 169916, SAO 186841, HIP 90496

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In the Vinony graph

Vinony's link graph records 259 inbound references to 斗宿二, and connects out to apparent magnitude, stellar classification and Bright Star Catalogue.

It sits within the topics Bayer objects, Bright Star Catalogue objects and Durchmusterung objects.

Vinony links it to 22 Wikipedia language editions.

Astronomical data · SIMBAD

Object type
PM*
Spectral type
K1IIIb
Distance
76 light-years
Redshift
z = -0.00014408930826126376
Coordinates
RA 276.9927° · Dec -25.4217°
View on SIMBAD →

via SIMBAD · CDS Strasbourg

Wikidata facts

Constellation
Sagittarius
Distance from Earth
23.2993
Radius
11
Mass
2.6
Image
Sagittarius constellation map.svg
Show 15 more facts
catalog code
UBV M 22949
spectral class
K0
stellar rotational velocity
3.81
right ascension
276.99266966042
apparent magnitude
2.543506
declination
-25.42169849694
effective temperature
4910
parallax
42.9198
radial velocity
-43.2
epoch
J2000.0
metallicity
0.04
surface gravity
1070
luminosity
82
right ascension component of proper motion
-47
declination component of proper motion
-188
Sources (4)

via Wikidata · CC0

Article · 中文

斗宿二 (λ Sgr / 人马座λ)是人马座的恒星。它标志出了射手的弓的顶部,因此其俗名为Kaus Borealis。它还标志出了所谓的星群“茶壶”的盖子。在中国古代天文学中,它是北方玄武中南斗中的第五颗。 斗宿二是一颗K光谱型的橙巨星。当前它的核心正在进行把氦聚变成碳和氧的反应。斗宿二距太阳系77光年,质量为太阳的2.3倍,光度为太阳的52倍,半径为太阳的11倍。 由于靠近黄道,斗宿二有时会被月球和行星(很少)掩食。最近一次的行星掩食发生在1984年11月19日,斗宿二被金星掩食。再上一次掩食发生在1865年12月5日,斗宿二被水星掩食。

Abstract from DBpedia / Wikipedia · CC BY-SA

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