HD 133002

Coordinates: Sky map 14h 50m 20s, +82° 30′ 43″
Source: Wikipedia, the free encyclopedia.
HD 133002
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ursa Minor
Right ascension 14h 50m 20.421s[1]
Declination +82° 30′ 42.99″[1]
Apparent magnitude (V) 5.63[2]
Characteristics
Spectral type G2V[3]
U−B color index +0.17[4]
B−V color index +0.671±0.004[2]
Distance
142.4 ± 0.3 ly
(43.66 ± 0.09 pc)
Absolute magnitude (MV)2.448[5]
Details
HD 133002 A
Gyr
HD 133002 B
Mass0.15±0.01[9] M☉
HR 5596, SAO 2459[10]
Database references
SIMBADdata
ARICNSdata

HD 133002 (HR 5596) is a possible binary

light years from the Sun.[1] If it was instead positioned at a distance of 33 ly (10 pc), this would be a second magnitude star.[5] The system is drifting closer with a heliocentric radial velocity of −44 km/s.[5]

This is a

weak line star. Based on its G-band strengths, it would we given a class of G0, and based on its metal lines a class of G1.[3]

It is estimated to have 51% greater mass than the Sun, and is younger with an age of around 2.8 billion years.

subgiant star that is in the process of evolving away from the main sequence.[13] The effective temperature of the star's photosphere is 5,515 K,[1] giving it the yellow-white hue of a G-type star.[14]

This star has been examined for evidence of an

AU from the primary, which suggests an orbital period of roughly 700 years. At present, there is insufficient observational data available to determine orbital elements.[9]

References

  1. ^
    S2CID 244398875
    . Gaia DR3 record for this source at VizieR.
  2. ^
    S2CID 119257644
    .
  3. ^
    doi:10.1086/164597
    .
  4. ^
    Bibcode:1986EgUBV........0M
    .
  5. ^
    S2CID 16602121
    .
  6. ^
    S2CID 56118016
    .
  7. ^
    doi:10.1051/0004-6361:200810377.[permanent dead link
    ]
  8. S2CID 46328823
    .
  9. ^
    S2CID 119199321
    .
  10. ^ "HD 133002". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2016-01-09.{{cite web}}: CS1 maint: postscript (link)
  11. Bibcode:2014yCat....1.2023S
    .
  12. doi:10.1017/S1743921305005624
    .
  13. S2CID 119473855
    .
  14. Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from the original
    on March 18, 2012, retrieved 2016-01-12.
  15. S2CID 54940779
    .


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