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12 Lyncis information


12 Lyn
Observation data
Epoch J2000      Equinox J2000
Constellation Lynx
Right ascension 06h 46m 14.13019s[1]
Declination +59° 26′ 30.0227″[1]
Apparent magnitude (V) 4.86[2] (5.44 / 6.00)[3]
Characteristics
Spectral type A3V[2] (A1.5V + A2V)[4]
U−B color index +0.08[5]
B−V color index +0.084±0.012[2]
Astrometry
Radial velocity (Rv)−3.0±4.2[6] km/s
Proper motion (μ) RA: −19.63[1] mas/yr
Dec.: −7.23[1] mas/yr
Parallax (π)15.19 ± 0.78 mas[1]
Distance210 ± 10 ly
(66 ± 3 pc)
Absolute magnitude (MV)0.77[2]
Orbit[3]
Period (P)907.6 yr
Semi-major axis (a)2.30″
Eccentricity (e)0.3700
Inclination (i)134.7°
Longitude of the node (Ω)166.5°
Periastron epoch (T)B 2677.4
Argument of periastron (ω)
(secondary)
322.6°
Details
12 Lyn A
Radius2.52[4] R
Rotational velocity (v sin i)90±30[4] km/s
12 Lyn B
Radius2.44[4] R
Rotational velocity (v sin i)100±30[4] km/s
Other designations
12 Lyn, BD+59°1015, GC 9850, HD 48250, HIP 32438, HR 2470, SAO 25939, WDS 06462+5927[7]
Database references
SIMBAD12 Lyn
12 Lyn A
12 Lyn B

12 Lyncis, abbreviated 12 Lyn, is a triple star[8] system in the constellation Lynx. It is visible to the naked eye as a faint point of light with a combined apparent visual magnitude of 4.87. When seen through a telescope, it can be separated into three stars: two components with magnitudes 5.4 and 6.0 that lie at an angular separation by 1.8″ (as of 1992) and a yellow-hued star of magnitude 7.2 at a separation of 8.6″ (as of 1990).[9][10] The orbit of the two brighter stars is not known with certainty, but appears to have a period of somewhere around 700 to 900 years.[11] The pair have a projected separation of 128 AU.[4] Parallax indicates the system is 210±10 light years distant from Earth.[1]

  1. ^ a b c d e f 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. S2CID 18759600. Archived from the original on 2016-04-02.
  2. ^ a b c d Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
  3. ^ a b "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. Archived from the original on 1 August 2017. Retrieved 28 May 2017.
  4. ^ a b c d e f Howe, K. S.; Clarke, C. J. (January 2009). "An analysis of v sin (i) correlations in early-type binaries". Monthly Notices of the Royal Astronomical Society. 392 (1): 448–454. Bibcode:2009MNRAS.392..448H. doi:10.1111/j.1365-2966.2008.14073.x.
  5. ^ Johnson, H. L. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99. Bibcode:1966CoLPL...4...99J.
  6. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
  7. ^ "* 12 Lyn". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 20 November 2012.
  8. ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869–879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. S2CID 14878976.
  9. ^ Cite error: The named reference wds2001 was invoked but never defined (see the help page).
  10. ^ Monks, Neale (2010). Go-To Telescopes Under Suburban Skies. New York, New York: Springer Science & Business Media. p. 56. ISBN 9781441968517.
  11. ^ Malkov, O. Yu.; Tamazian, V.S.; Docobo, J.A.; Chulkov, D.A. (2012). "Dynamical Masses of a Selected Sample of Orbital Binaries". Astronomy and Astrophysics. 546: 5. Bibcode:2012A&A...546A..69M. doi:10.1051/0004-6361/201219774. A69.

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12 Lyncis

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12 Lyncis, abbreviated 12 Lyn, is a triple star system in the constellation Lynx. It is visible to the naked eye as a faint point of light with a combined...

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List of stars in Lynx

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Catalogues". Retrieved 2006-12-26. Kostjuk, N. D. (2002). "HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index". Retrieved 2006-12-26. Roman, N. G. (1987). "Identification...

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41 Lyncis

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more distant than 41 Lyncis itself, but the two share a common proper motion and are at the same distance as each other. 41 Lyncis is the Flamsteed designation...

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Alpha Lyncis

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Alpha Lyncis (α Lyn, α Lyncis) is the brightest star in the northern constellation of Lynx with an apparent magnitude of +3.13. Unusually, it is the only...

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16 Lyncis

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temperature of 10,395 K. 16 Lyncis is suspected of being slightly variable, but this has not been confirmed. It was noted when 16 Lyncis was used as a comparison...

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SW Lyncis

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SW Lyncis is a binary or possibly a multiple-star system in the northern constellation of Lynx, abbreviated SW Lyn. With a combined apparent visual magnitude...

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RR Lyncis

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RR Lyncis is a star system in the northern constellation of Lynx, abbreviated RR Lyn. It is an eclipsing binary of the Algol type; one of the closest in...

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SZ Lyncis

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SZ Lyncis is a binary star system in the northern constellation of Lynx, abbreviated SZ Lyn. It is a variable star with an apparent visual magnitude that...

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DU Lyncis

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DU Lyncis is a single variable star in the constellation Lynx. It is a faint star but visible to the naked eye with an apparent visual magnitude of 5.15...

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21 Lyncis

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21 Lyncis is a single star in the northern constellation of Lynx. It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude...

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1 Lyncis

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1 Lyncis is a single star in the northern constellation of Lynx. It is also known by its variable star designation of UW Lyncis; 1 Lyncis is the Flamsteed...

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24 Lyncis

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24 Lyncis is a single star in the northern constellation of Lynx. It is visible to the naked eye as a dim, white-hued star with an apparent visual magnitude...

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31 Lyncis

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4.21 to as low as 4.27, and has the variable star designation BN Lyncis. 31 Lyncis is 1.3 billion years old with almost double the mass of the Sun. With...

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41 Lyncis b

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41 Lyncis b (abbreviated 41 Lyn b), also designated HD 81688 b and named Arkas /ˈɑːrkəs/, is an extrasolar planet approximately 280 light-years from Earth...

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List of stars in Ursa Major

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Catalogues". Retrieved 2006-12-26. Kostjuk, N. D. (2002). "HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index". Retrieved 2006-12-26. Roman, N. G. (1987). "Identification...

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V391 Pegasi

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doi:10.1038/nature06143, PMID 17851517, S2CID 4342338 Fortney, Jonathan (12 September 2007), "The one that got away", Nature, 449 (7159): 147–148, Bibcode:2007Natur...

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List of proper names of stars

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recognized by the WGSN. Further batches of names were approved on 21 August, 12 September, 5 October, and 6 November 2016. These were listed in a table of...

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14 Andromedae b

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81 Ceti b 6 Lyncis b Sato, Bun'ei; et al. (2008). "Planetary Companions to Evolved Intermediate-Mass Stars: 14 Andromedae, 81 Ceti, 6 Lyncis, and HD167042"...

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Semiregular variable star

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Bibcode:2006JAVSO..34..156O. EU Delphini and the Small-Amplitude Pulsating Red Giants Y Lyncis Pulsating variable stars and the H-R diagram OGLE Atlas of Variable Star...

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List of brightest natural objects in the sky

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formula: − 12.90 ≈ − 2.5 log 10 ⁡ 10 − 12.74 ⋅ − 0.4 ( 1 − 0.0167 ) 2 ( 1 − 0.0554 ) 2 {\displaystyle -12.90\approx -2.5\log _{10}{\frac {10^{-12.74\cdot...

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List of proper names of exoplanets

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4979 2015 NameExoWorlds Arkas Son of Zeus and Callisto in Greek myth 41 Lyncis (Intercrus) 2.7 184.02 0.81 radial vel. 2007 287.9 2.1 4753 2015 NameExoWorlds...

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NGC 2537

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dwarf galaxy in the constellation Lynx, located around 3 degrees NNW of 31 Lyncis. This is Arp 6 or Mrk 86. It belongs to the iE class of Blue Compact Dwarf...

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List of exoplanets detected by timing

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extrasolar planets that were detected by timing –– 8 by pulsar timing and 12 by variable star timing, sorted by orbital periods. It works by detecting...

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18 Delphini b

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by the playing of his kithara ('Delphinus' is Latin for 'dolphin'). 41 Lyncis b Xi Aquilae b Sato, Bun'ei; et al. (2008). "Planetary Companions around...

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81 Ceti

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was announced by Sato and collaborators, along with 14 Andromedae b and 6 Lyncis b. The planet was found to be a super-Jupiter, with 5.3 times the mass of...

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81 Ceti b

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G and K giants at Okayama Astrophysical Observatory. 14 Andromedae b 6 Lyncis b 79 Ceti b 94 Ceti b NASA 7012 81 Ceti b Sato, Bun'ei; et al. (2008). "Planetary...

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14 Andromedae

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innermost (such planets have only been discovered around clump giants). 6 Lyncis 81 Ceti HD 167042 Upsilon Andromedae Brown, A. G. A.; et al. (Gaia collaboration)...

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SX Arietis variable

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B7IIIpv 8.82 140 HR 2949 4.43 B5IV 1.90 113 28 Cygni 4.93 B2.5Ve 0.70 317 36 Lyncis 5.29 B9 3.83 178 HD 142990 5.43 B5V 0.98 170 V692 Coronae Australis 5.46...

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