VB 10

"van Biesbroeck's star" redirects here. For his catalogue, see van Biesbroeck's star catalog.
VB 10

An animation of images taken with the 200 in (5.1 m) Hale Telescope over a period of nine years showing the proper motion of VB 10.
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 16m 57.62s[1]
Declination +05° 09′ 02.2″[1]
Apparent magnitude (V) 17.30[1]
Characteristics
Spectral type M8V[1]
Apparent magnitude (B) ~19.42[1]
Apparent magnitude (R) ~15.6[1]
Apparent magnitude (J) 9.908 ±0.025[1]
Apparent magnitude (H) 9.226 ±0.026[1]
Apparent magnitude (K) 8.765 ±0.022[1]
Variable type UV[2]
Astrometry
Proper motion (μ) RA: -614[1] mas/yr
Dec.: -1368[1] mas/yr
Parallax (π)168.9537 ± 0.0668 mas[3]
Distance19.304 ± 0.008 ly
(5.919 ± 0.002 pc)
Absolute magnitude (MV)18.7[4]
Details[5]
Mass0.0881+0.0026
−0.0024 M☉
Radius0.1183+0.0059
−0.0057 R☉
Luminosity (bolometric)0.000499±0.000004 L☉
Luminosity (visual, LV)0.000003 L☉
Temperature2,508+63
−60 K
Metallicity~0[6]
Age~1[6] Gyr
Other designations
2MASS J19165762+0509021, BD+04 4048 B, V1298 Aquilae, Gliese 752 B,
Van Biesbroeck's Star
Database references
SIMBADdata
Exoplanet Archivedata

VB 10 or Van Biesbroeck's star /vænˈbiːzbrʊk/[7] is a small and dim red dwarf[2] located in the constellation Aquila. It is part of a binary star system. VB 10 is historically notable as it was the least luminous and least massive known star from its discovery in 1944, until 1982 when LHS 2924 was shown to be less luminous. [8] Although it is relatively close to Earth, at about 19 light years, VB 10 is a dim magnitude 17, making it difficult to image with amateur telescopes as it can get lost in the glare of the primary star.[1] VB 10 is also the primary standard for the M8V spectral class.

  1. ^ a b c d e f g h i j k l "V* V1298 Aql". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-05-28.
  2. ^ a b "V1298 Aql". General Catalogue of Variable Stars, Sternberg Astronomical Institute, Moscow, Russia. Retrieved 2009-05-28.
  3. ^ Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  4. ^ Cite error: The named reference Biesbroeck was invoked but never defined (see the help page).
  5. ^ Pineda, J. Sebastian; Youngblood, Allison; France, Kevin (September 2021). "The M-dwarf Ultraviolet Spectroscopic Sample. I. Determining Stellar Parameters for Field Stars". The Astrophysical Journal. 918 (1): 23. arXiv:2106.07656. Bibcode:2021ApJ...918...40P. doi:10.3847/1538-4357/ac0aea. S2CID 235435757. 40.
  6. ^ a b Cite error: The named reference disc was invoked but never defined (see the help page).
  7. ^ Charles Earle Funk (1936) What's the Name, Please?: A Guide to the Correct Pronunciation of Current Prominent Names, p.161
  8. ^ "Van Biesbroeck's Star". Oxford Reference. Retrieved 16 October 2023.