M Centauri
M Centauri
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
Constellation | Centaurus |
Right ascension | 13h 46m 39.378s[1] |
Declination | −51° 25′ 57.95″[1] |
Apparent magnitude (V) | +4.64 |
| Characteristics | |
Spectral type | G8-K0III |
| U−B color index | +0.72 |
| B−V color index | +0.96 |
Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | −6 km/s |
| Proper motion (μ) | RA: 10.00 ± 0.42[1] mas/yr Dec.: -27.62 ± 0.34[1] mas/yr |
| Parallax (π) | 12.42 ± 0.48[1] mas |
| Distance | 260 ± 10 ly (81 ± 3 pc) |
| Absolute magnitude (MV) | +0.16 |
Orbit[2] | |
| Primary | M Centauri A |
| Companion | M Centauri B |
| Period (P) | 437 days |
| Semi-major axis (a) | 6.45 mas |
| Eccentricity (e) | 0.13 |
| Inclination (i) | 48.2° |
| Longitude of the node (Ω) | 280.3° |
| Periastron epoch (T) | 2424163.0 |
Argument of periastron (ω) (secondary) | 58.6° |
| Other designations | |
HR 5172, HD 119834, CD−50°8017, HIP 67234, SAO 241157, GC 18607, CCDM J13467-5126 | |
| Database references | |
| SIMBAD | data |
M Centauri (M Cen) is a binary star in the constellation Centaurus. It is approximately 260 light years from Earth.
M Centauri is a yellow G-type giant with an apparent magnitude of +4.64. It is a spectroscopic binary with an orbital period of 437 days.
References[edit]
^ abcde van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
Vizier catalog entry
^ Jancart, S. (2005). "Astrometric orbits of SB9 stars". Astronomy and Astrophysics. 442 (1): 365–380. arXiv:astro-ph/0507695. Bibcode:2005A&A...442..365J. doi:10.1051/0004-6361:20053003.
 | This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |
Categories:
- Bayer objects
- Centaurus (constellation)
- Spectroscopic binaries
- G-type giants
- HR objects
- Henry Draper Catalogue objects
- Hipparcos objects
- Durchmusterung objects
- Multiple star stubs
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