五諸侯增二 (井宿) 参考文献 导航菜单dataPulsating variable StarVizieR Detailed Page编辑或修订

雙子座HD和HDE天體HR天體SAO天體五诸侯 (井宿星官)


雙子座銀經銀緯B1900.0





雙子座64


觀測資料
曆元 J2000.0

星座


雙子座[1][2]

星官




赤經

7h 29m 20.4s[1][2]

赤緯

+28° 7′ 5″[1][2]

視星等(V)

5.05[1][2]
特性光谱分类
A4V[1][2]
U−B 色指数
0.12[1][2]
B−V 色指数
0.11[1][2]
R−I 色指数

[1][2]
天体测定徑向速度 (Rv)
0.12 km/s
自行 (μ)
赤经:35 mas/yr
赤纬:- mas/yr
视差 (π)
0.008 mas

距离
407695.475 ly
(125000 pc)

其他命名

BD+28 1396,SAO 79427,HD 59037,HR 2857

參考資料庫

SIMBAD


data

雙子座64,又名BD+28 1396HD 59037SAO 79427HR 2857,是雙子座的一颗恒星[1][2],视星等为5.05,位于銀經190.83,銀緯20.13,其B1900.0坐标为赤經7h 23m 6.6s,赤緯+28° 20.13′ 28″。



参考文献




  1. ^ 1.01.11.21.31.41.51.61.71.8 Pulsating variable Star. SIMBAD. Centre de Données astronomiques de Strasbourg. [2012-07-13]. 


  2. ^ 2.02.12.22.32.42.52.62.72.8 VizieR Detailed Page. [2012-07-13]. 





Popular posts from this blog

名間水力發電廠 目录 沿革 設施 鄰近設施 註釋 外部連結 导航菜单23°50′10″N 120°42′41″E / 23.83611°N 120.71139°E / 23.83611; 120.7113923°50′10″N 120°42′41″E / 23.83611°N 120.71139°E / 23.83611; 120.71139計畫概要原始内容臺灣第一座BOT 模式開發的水力發電廠-名間水力電廠名間水力發電廠 水利署首件BOT案原始内容《小檔案》名間電廠 首座BOT水力發電廠原始内容名間電廠BOT - 經濟部水利署中區水資源局

Prove that NP is closed under karp reduction?Space(n) not closed under Karp reductions - what about NTime(n)?Class P is closed under rotation?Prove or disprove that $NL$ is closed under polynomial many-one reductions$mathbfNC_2$ is closed under log-space reductionOn Karp reductionwhen can I know if a class (complexity) is closed under reduction (cook/karp)Check if class $PSPACE$ is closed under polyonomially space reductionIs NPSPACE also closed under polynomial-time reduction and under log-space reduction?Prove PSPACE is closed under complement?Prove PSPACE is closed under union?

Is my guitar’s action too high? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)Strings too stiff on a recently purchased acoustic guitar | Cort AD880CEIs the action of my guitar really high?Μy little finger is too weak to play guitarWith guitar, how long should I give my fingers to strengthen / callous?When playing a fret the guitar sounds mutedPlaying (Barre) chords up the guitar neckI think my guitar strings are wound too tight and I can't play barre chordsF barre chord on an SG guitarHow to find to the right strings of a barre chord by feel?High action on higher fret on my steel acoustic guitar