19 Lyncis

19 Lyncis
Observation data
Epoch J2000      Equinox J2000
Constellation Lynx
19 Lyn A
Right ascension 07h 22m 52.06240s[1]
Declination +55° 16′ 53.0352″[1]
Apparent magnitude (V) 5.78[2]
19 Lyn B
Right ascension 07h 22m 50.8488s[3]
Declination +55° 17′ 03.541″[3]
Apparent magnitude (V) 6.72[2]
Characteristics
19 Lyn A
Spectral type B8V[4]
19 Lyn B
Spectral type B9V[5]
Astrometry
19 Lyn A
Radial velocity (Rv)5.2 ± 2[6] km/s
Proper motion (μ) RA: 0.53[1] mas/yr
Dec.: -29.59[1] mas/yr
Parallax (π)-5.91 ± 1.92[1] mas
19 Lyn B
Radial velocity (Rv)10.00 ± 3.7[7] km/s
Proper motion (μ) RA: 3.17[1] mas/yr
Dec.: -22.90[1] mas/yr
Parallax (π)-5.72 ± 4.76[1] mas
Distanceapprox. −600 ly
(approx. −200 pc)
Other designations
19 Lyn, CCDM J07228+5518
19 Lyn A: HD 57103, HIP 35785, HR 2784, SAO 26312, BD+55° 1192[4]
19 Lyn B: HD 57102, HIP 35783, HR 2783, SAO 26311, BD+55° 1192B[5]
Database references
SIMBAD19 Lyn A
19 Lyn B

19 Lyncis (abbreviated as 19 Lyn) is a double star in the constellation of Lynx. Its apparent magnitude is 5.8.

A telescope reveals it is two blue-white stars of magnitudes 5.8 and 6.9 that are 15 arcseconds apart, with a third star of magnitude 7.6 that is 3.5 arcminutes distant.[8]

References

  1. 1 2 3 4 5 6 7 8 van Leeuwen, F.; et al. (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.
  2. 1 2 Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
  3. 1 2 Gaia Collaboration (2016). "Gaia Data Release 1". Astronomy & Astrophysics. 595: A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512.
  4. 1 2 "* 19 Lyn A". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 17 August 2017.
  5. 1 2 "* 19 Lyn B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 17 August 2017.
  6. ↑ Wilson, Ralph Elmer (1953). "General catalogue of stellar radial velocities". Bibcode:1953GCRV..C......0W.
  7. ↑ Kharchenko, N. V.; et al. (2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten. 328 (9): 889. arXiv:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776.
  8. ↑ Monks, Neale (2010). Go-To Telescopes Under Suburban Skies. New York, New York: Springer Science & Business Media. p. 58. ISBN 9781441968517.


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