Beta Leonis Minoris

β Leonis Minoris
Data pengamatan
Epoch J2000.0      Equinox J2000.0 (ICRS)
Rasi bintangLeo Minor
KomponenAB
Asensio rekta 10j 27m 10j 27m
 52.998s53.006s
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 bintangG8III-IV[3]F8IV[3]
U-B Indeks warna+0.64[3]
B-V Indeks warna+0.90[3]
V-R Indeks warna0.5[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]&nbspm.b/thn −95.00[2]&nbspm.b/thn 
Paralaks (π)22.34 ± 0.87[4] m.b
Jarak146 ± 6 tc
(45 ± 2 pc)
Magnitudo mutlak (MV)0.96[5]
Details
Massa~2[6] M☉1.35[6] M☉
Radius7.8[6] R☉2[6] R☉
Luminositas36[6] L☉5.8[6] L☉
Temperatur5075[6] K6200[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
SIMBADdata
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: Peta langit 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

  1. ^ a b c HIP 51233, record for component 1, Hipparcos catalogue; CDS ID I/239.
  2. ^ a b c HIP 51233, record for component 2, Hipparcos catalogue; CDS ID I/239.
  3. ^ 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.
  4. ^ a b c d e HD 90537 -- Spectroscopic binary, database entry, SIMBAD. Accessed on line October 1, 2008.
  5. ^ Dari magnitudo semu dan paralaks.
  6. ^ a b c d e f g h Beta LMi, Stars, Jim Kaler. Accessed on line October 2, 2008.
  7. ^ Entry 10279+3642, Sixth Catalog of Orbits of Visual Binary Stars, United States Naval Observatory. Accessed on line October 1, 2008.
  8. ^ Entry 10279+3642, The Washington Double Star Catalog, United States Naval Observatory. Accessed on line October 1, 2008.

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