WASP-56

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WASP-56
Observation data
Epoch J2000      Equinox J2000
Constellation
Coma Berenices
Right ascension 12h 13m 27.8904s[1]
Declination +23° 03′ 20.459″[1]
Apparent magnitude (V) 11.48[2]
Characteristics
Evolutionary stage main sequence star
Spectral type G6[3]
Distance
1,060 ± 20 ly
(324 ± 5 pc)
Details
Gyr
TYC 1986-1561-1, 2MASS
J12132790+2303205
Database references
SIMBADdata

WASP-56 is a

optical double.[7]

Planetary system

It has a

SuperWASP program. Fourteen transits were observed over three watching seasons, each lasting 214 minutes and reducing the stars' brightness by 14 millimagnitudes.[4] The planet has around 0.6 times the mass of Jupiter and an orbital period of 4.6 days. The planet possibly has a large core of heavy metals.[4]

The WASP-56 planetary system[5]
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
b 0.599+0.040
−0.039 MJ 		0.05614+0.00040
−0.00041 		4.6171010±0.000003 <0.082 88.5+0.1
−0.2° 		1.092+0.035
−0.033 RJ

References

  1. ^
    S2CID 1828208.Gaia Data Release 1 catalog entry
  2. Bibcode:2000A&A...355L..27H
    .
  3. ^ "Cl* Melotte 111 AV 561". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 9 September 2013.
  4. ^
    S2CID 14346225
    .
  5. ^
    S2CID 118923163
    .
  6. ^ "Coma Berenices, constellation boundary". The Constellations. International Astronomical Union. Retrieved 27 February 2014.
  7. S2CID 118903879
    .
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