|
β Leonis Minoris
Data pengamatan
Epoch J2000.0 Equinox J2000.0 (ICRS) | | Rasi bintang | Leo Minor | | Komponen | A | B | | Asensio rekta | 10j 27m | 10j 27m | | | 52.998s | 53.006s | | Deklinasi | +36° 42′[1] | +36° 42′[2] | | | 25.95″ | 26.01″ | | Magnitudo semu (V) | 4.40[3] | 6.12[3] | | | 4.215[4] | | Karakteristik | | Klasifikasi bintang | G8III-IV[3] | F8IV[3] | | U-B Indeks warna | +0.64[3] | | B-V Indeks warna | +0.90[3] | | V-R Indeks warna | 0.5[4] | | R-I Indeks warna | +0.46[3] | | Astrometri | | Gerak diri: | | | RA (μα cos δ) | −134.15[1] m.b/thn | −102.97[2] m.b/thn | | Dec. (μδ) | −113.57[1] m.b/thn | −95.00[2] m.b/thn | | Paralaks (π) | 22.34 ± 0.87[4] m.b | | Jarak | 146 ± 6 tc
(45 ± 2 pc) | | Magnitudo mutlak (MV) | 0.96[5] | | Details | | Massa | ~2[6] M☉ | 1.35[6] M☉ | | Radius | 7.8[6] R☉ | 2[6] R☉ | | Luminositas | 36[6] L☉ | 5.8[6] L☉ | | Temperatur | 5075[6] K | 6200[6] K | | Orbit[7] | | Periode (P) | 38.62 y | | Sumbu semi-mayor (a) | 0.363″ | | Eksentrisitas (e) | 0.668 | | Inklinasi (i) | 79.1° | | Bujur node menaik (Ω) | 41.5° | | Periastron epos (T) | B1999.15 | Argumen periastron (ω)
(secondary) | 29.8° | | Referensi Database | | SIMBAD | data | | Nama lain | β LMi, Beta Leonis Minoris, Beta LMi, 31 Leonis Minoris, 31 LMi, ADS 7780 AB, BD+37 2080, CCDM J10279+3642AB, FK5 390, GC 14358, HD 90537, HIP 51233, HR 4100, PPM 75233, SAO 62053, WDS 10279+3642AB. [4][3][8] |
|
Koordinat:  10h 27m 53s, +36° 42′ 26″
Beta Leonis Minoris (Beta LMi, β Leonis Minoris, β LMi) adalah sistem bintang biner yang terletak di rasi bintang Leo Minor. Bintang ini memiliki magnitudo semu 4,215.[4]
Referensi
- ^ a b c HIP 51233, record for component 1, Hipparcos catalogue; CDS ID I/239.
- ^ a b c HIP 51233, record for component 2, Hipparcos catalogue; CDS ID I/239.
- ^ a b c d e f g h HR 4100, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line October 1, 2008.
- ^ a b c d e HD 90537 -- Spectroscopic binary, database entry, SIMBAD. Accessed on line October 1, 2008.
- ^ Dari magnitudo semu dan paralaks.
- ^ a b c d e f g h Beta LMi, Stars, Jim Kaler. Accessed on line October 2, 2008.
- ^ Entry 10279+3642, Sixth Catalog of Orbits of Visual Binary Stars, United States Naval Observatory. Accessed on line October 1, 2008.
- ^ Entry 10279+3642, The Washington Double Star Catalog, United States Naval Observatory. Accessed on line October 1, 2008.
|
