GSC 02652-01324

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GSC 02652-01324
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Lyra[1]
Right ascension 19h 04m 09.8516s[2]
Declination +36° 37′ 57.4459″[2]
Apparent magnitude (V) +11.806[3]
Spectral type K0V[4]
Apparent magnitude (B) 12.405±0.005[3]
Apparent magnitude (V) 11.806[3]
Apparent magnitude (J) 10.294±0.022[5]
Apparent magnitude (H) 9.887±0.021[5]
Apparent magnitude (K) 9.819±0.019[5]
Variable type Planetary transit variable[4]
Proper motion (μ) RA: −32.207±0.046[2] mas/yr
Dec.: −20.401±0.046[2] mas/yr
Parallax (π)6.2346 ± 0.0285[2] mas
Distance523 ± 2 ly
(160.4 ± 0.7 pc)
Absolute magnitude (MV)+5.81[citation needed]
Details[citation needed]
Mass0.87 ± 0.03 M
Radius0.82 ±0.02 R
Luminosity0.49 L
Temperature5250 K
Metallicity0.001 ± 0.004
Age2.5±1.4 Gyr
Other designations
TrES-1 Parent Star, V672 Lyr, TYC 2652-1324-1, 2MASS 19040985+3637574[6]
Database references

GSC 02652-01324 is an orange dwarf main sequence star approximately 523 light-years away in the constellation of Lyra (the Lyre).[4][1][2]

Planetary system[edit]

In 2004 the extrasolar planet TrES-1b was found to be orbiting this star by the Trans-Atlantic Exoplanet Survey using the transit method. The planet was detected crossing its parent star using a small 4-inch-diameter (100 mm) telescope. The discovery was confirmed by the Keck Observatory using the radial velocity method, allowing its mass to be determined.[4][7]

The GSC 02652-01324 planetary system[8][9][10]
(in order from star)
Mass Semimajor axis
Orbital period
Eccentricity Inclination Radius
b 0.697+0.028
3.03006973±0.00000018 <0.012 90+0

See also[edit]


  1. ^ a b Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Vizier query form
  2. ^ a b c d e f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  3. ^ a b c Henden, A. A.; et al. (2016). "VizieR Online Data Catalog: AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)". VizieR On-line Data Catalog: II/336. Originally Published in: 2015AAS...22533616H. 2336. Bibcode:2016yCat.2336....0H.Vizier catalog entry
  4. ^ a b c d Alonso, Roi; et al. (2004). "TrES-1: The Transiting Planet of a Bright K0V Star". The Astrophysical Journal Letters. 613 (2): L153–L156. arXiv:astro-ph/0408421. Bibcode:2004ApJ...613L.153A. doi:10.1086/425256. S2CID 8940599.
  5. ^ a b c Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131: 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Vizier catalog entry
  6. ^ "TrES-1 Parent Star". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2018-02-01.
  7. ^ "Keck confirms transit planet" (Press release). Kamuela, Hawaii: W. M. Keck Observatory. August 24, 2004. Retrieved August 14, 2019.
  8. ^ Bonomo, A. S.; et al. (2017). "The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy and Astrophysics. 602. A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. S2CID 118923163.
  9. ^ Baluev, Roman V.; et al. (2015). "Benchmarking the power of amateur observatories for TTV exoplanets detection". Monthly Notices of the Royal Astronomical Society. 450 (3): 3101–3113. arXiv:1501.06748. Bibcode:2015MNRAS.450.3101B. doi:10.1093/mnras/stv788. S2CID 15420110.
  10. ^ Torres, Guilermo; et al. (2008). "Improved Parameters for Extrasolar Transiting Planets". Astrophysical Journal. 677 (2): 1324–1342. arXiv:0801.1841. Bibcode:2008ApJ...677.1324T. doi:10.1086/529429. S2CID 12899134.

External links[edit]

Coordinates: Sky map 19h 04m 09s, +36° 37′ 57″