Mu Canis Majoris
bintang yang terletak di rasi bintang Canis Major
Mu Canis Majoris (μ CMa / μ Canis Majoris) adalah salah satu bintang di rasi Canis Major.
  Lokasi μ Canis Majoris (dilingkari) | |
| Data pengamatan Epos J2000.0 Ekuinoks J2000.0 (ICRS) | |
|---|---|
| Rasi bintang | Canis Major |
| Asensio rekta | 06j 56m 06,64589d[1] |
| Deklinasi | −14° 02′ 36,3520″[1] |
| Magnitudo tampak (V) | 5,12 (5,27 + 7,32)[2] |
| Ciri-ciri | |
| Kelas spektrum | K2/3 III + B9/A0 V[3] |
| Astrometri | |
| Kecepatan radial (Rv) | 18,1±0,1[4] km/s |
| Gerak diri (μ) | RA: −1,59[1] mdb/thn Dek.: + 6,33[1] mdb/thn |
| Paralaks (π) | 2,62±0,58[1] mdb |
| Jarak | sekitar 1.200 tc (sekitar 380 pc) |
| Magnitudo mutlak (MV) | −2,22[5] |
| Detail | |
| μ CMa A | |
| Gravitasi permukaan (log g) | 2489[6] |
| Suhu | 4441[6] K |
| Kecepatan rotasi (v sin i) | ≤ 5[7] km/s |
| μ CMa B | |
| Massa | 14,7±0,3[8] M☉ |
| Usia | 11,6±0,5[8] megatahun |
| Penamaan lain | |
μ CMa, 18 CMa, BD−13° 1741, HIP 33345, HR 2593, SAO 152123 | |
| Referensi basis data | |
| SIMBAD | data |
μ Canis Majoris memiliki magnitudo tampak 5,12.[2] Bintang ini berada pada jarak 1200 tahun cahaya dari Matahari.[1]
Etimologi
suntingBintang ini memiliki nama tradisional Isis yang merupakan nama salah satu dewi Mesir Kuno.
Pada Almagest, bintang ini disebut sebagai quae in capite, berarti "yang berada di kepala (sang anjing besar)".[9]
Referensi
sunting- ^ a b c d e f 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.
- ^ a b Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878 , Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x.
- ^ Houk, Nancy; Smith-Moore, M. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 4, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1988MSS...C04....0H.
- ^ de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv:1208.3048 , Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, A61.
- ^ Ginestet, N.; Carquillat, J. M. (2002), "Spectral Classification of the Hot Components of a Large Sample of Stars with Composite Spectra, and Implication for the Absolute Magnitudes of the Cool Supergiant Components", The Astrophysical Journal Supplement Series, 143 (2): 513, Bibcode:2002ApJS..143..513G, doi:10.1086/342942.
- ^ a b McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037 , Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x.
- ^ Eaton, J. A. (May 1990), "Rotational Velocities of G and K Giants", Information Bulletin on Variable Stars, 3460: 1, Bibcode:1990IBVS.3460....1E.
- ^ a b Tetzlaff, N.; et al. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society, 410 (1): 190–200, arXiv:1007.4883 , Bibcode:2011MNRAS.410..190T, doi:10.1111/j.1365-2966.2010.17434.x.
- ^ http://www.atlascoelestis.com/alsufi%2038.htm
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