Tenrosei
Template:Starbox characterTemplate:Starbox detail
Observation data Epoch J2000.0 (ICRS) Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Canis Major |
Pronunciation | Template:IPA-en[1] |
Right ascension | 06h 45m 08.9173s[2][3] |
Declination | −16° 42′ 58.017″[2][3] |
Apparent magnitude (V) | −1.46 (A)[2] / 8.30 (B)[4] |
Astrometry | |
wikipedia:Radial velocity (Rv) | −7.6[2] km/s |
Proper motion (μ) | RA: −546.05[2][3] mas/yr Dec.: −1223.14[2][3] mas/yr |
Parallax (π) | 379.21 ± 1.58[2] mas |
Distance | Expression error: Unrecognized punctuation character "[". ± Expression error: Unrecognized punctuation character "[". ly (Expression error: Unrecognized punctuation character "[". ± Expression error: Unrecognized punctuation character "[". pc) |
Absolute magnitude (MV) | 1.42 (A)[5] / 11.18 (B)[4] |
Orbit[6] | |
Companion | α CMa B |
Period (P) | 49.9 yr |
Semimajor axis (a) | 7.56" |
Eccentricity (e) | 0.592 |
Inclination (i) | 136.5° |
Longitude of the node (Ω) | 44.6° |
Periastron epoch (T) | 1894.13 |
Argument of periastron (ω) (secondary) | 147.3° |
Other designations | |
In Chinese astronomy the star is known as the star of the 'celestial wolf' (Chinese and Japanese: 天狼; Chinese romanization: Tiānláng; Japanese romanization: Tenrō;[12] in the Mansion of Jǐng (井宿).Several cultures also associated the star with a bow and arrows. The Ancient Chinese visualized a large bow and arrow across the southern sky, formed by the constellations of Puppis and Canis Major. In this, the arrow tip is pointed at the wolf Sirius.
- ↑ "Sirius". Dictionary.com Unabridged (v 1.1). Random House, Inc. Retrieved on 2008-04-06.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Cite error: Invalid
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- ↑ 3.0 3.1 3.2 3.3 Astrometric data, mirrored by SIMBAD from the Hipparcos catalogue, pertains to the center of mass of the Sirius system. See §2.3.4, Volume 1, The Hipparcos and Tycho Catalogues, European Space Agency, 1997, and the entry for Sirius in the Hipparcos catalogue (CDS ID I/239.)
- ↑ 4.0 4.1 Entry for WD 0642-166, A Catalogue of Spectroscopically Identified White Dwarfs (August 2006 version), G. P. McCook and E. M. Sion (CDS ID III/235A.)
- ↑ For apparent magnitude m and parallax π, the absolute magnitude Mv of Sirius A is given by:
- ↑ Template:Cite journal (p. 195.)
- ↑ Cite error: Invalid
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- ↑ Singh, Nagendra Kumar (2002). Encyclopaedia of Hinduism, A Continuing Series. Anmol Publications PVT. LTD. p. 794. Template:ISBN.
- ↑ Spahn, Mark; Hadamitzky, Wolfgang; Fujie-Winter, Kimiko (1996). The Kanji dictionary. Tuttle Publishing. p. 724. Template:ISBN.
- ↑ Database entry for Sirius B, SIMBAD. Accessed on line October 23, 2007.
- ↑ van Altena, W. F.; Lee, J. T.; Hoffleit, E. D. (1995). The general catalogue of trigonometric parallaxes (4th ed.). Yale University Observatory. (CDS ID I/238A.
- ↑ Template:Harvard citation