GSC 03089-00929

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GSC 03089-00929
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Hercules
Right ascension 17h 52m 07.020s[1]
Declination +37° 32′ 46.23″[1]
Apparent magnitude (V) 12.4
Spectral type G
Apparent magnitude (B) 13.114 ±0.009[2]
Apparent magnitude (V) 12.402 ±0.006[2]


Apparent magnitude (I) 11.603000 ±0.010[2]
Apparent magnitude (J) 11.015 ±0.022[2]
Apparent magnitude (H) 10.655000 ±0.030[2]
Apparent magnitude (K) 10.608000 ±0.028[2]
Variable type V*(1SWASP)[2][3]
Proper motion (μ) RA: -22.5[4] mas/yr
Dec.: 32.0[4] mas/yr
Distance 1300 ± 600 ly
(400 ± 200 pc)
Mass 0.924 (−0.04+0.012) M
Temperature 5720 ± 150 K
Metallicity -0.19 ± 0.08
Other designations
TrES-3 Parent Star, 1SWASP J175207.01+373246.3, UCAC2 45017453[2]
Database references
Extrasolar Planets

GSC 03089-00929 is a magnitude 12 star located approximately 1300 light-years away in the constellation of Hercules. This star is a G type main sequence star that is similar to but slightly cooler than our sun.[2] This star is identified in SIMBAD as a variable star per the 1SWASP survey.[5]

Planetary system[edit]

In 2007 the TrES program found exoplanet TrES-3b orbiting this star by using the transit method.[6]

The GSC 03089-00929 planetary system
(in order from star)
Mass Semimajor axis
Orbital period
Eccentricity Inclination Radius
TrES-3b 1.92 ± 0.23 MJ 0.0226 ± 0.0013 1.30619 ± 0.00005 0

See also[edit]


  1. ^ a b Zacharias, N. (2017). "VizieR Online Data Catalog: Fifth U.S. Naval Observatory CCD Astrograph Catalog". bCDS/ADC Collection of Electronic Catalogues. Bibcode:2017yCat.1340....0Z. 
  2. ^ a b c d e f g h i j "NAME TrES-3 Parent Star". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-04-23. 
  3. ^ Lister el al; West, R. G.; Wilson, D. M.; Collier Cameron, A.; Clarkson, W. I.; Street, R. A.; Enoch, B.; Parley, N. R.; et al. (June 30, 2007). "SuperWASP-North extrasolar planet candidates: candidates from fields 17h<RA<18h". Monthly Notices of the Royal Astronomical Society. 379 (2): 647–662. arXiv:0705.2603Freely accessible. Bibcode:2007MNRAS.379..647L. doi:10.1111/j.1365-2966.2007.11948.x. 
  4. ^ a b Zacharias, N. (2003). "VizieR Online Data Catalog: The Second U.S. Naval Observatory CCD Astrograph Catalog (UCAC2)". bCDS/ADC Collection of Electronic Catalogues. Bibcode:2003yCat.1289....0Z. 
  5. ^ "Objects in reference 2007MNRAS.379..647L". Centre de Données astronomiques de Strasbourg. Retrieved 2009-05-03. 
  6. ^ O'Donovan, Francis T.; Charbonneau, David; Bakos, Gáspár Á.; Mandushev, Georgi; Dunham, Edward W.; Brown, Timothy M.; Latham, David W.; Torres, Guillermo; et al. (July 1, 2007). "TrES-3: A Nearby, Massive, Transiting Hot Jupiter in a 31-Hour Orbit". Astrophysical Journal Letters. 663 (1): L37–L40. arXiv:0705.2004Freely accessible. Bibcode:2007ApJ...663L..37O. doi:10.1086/519793. 

External links[edit]

Coordinates: Sky map 17h 52m 07s, +37° 32′ 46″