WASP-56 is a
sun-like star
Solar-type star, solar analogs (also analogues), and solar twins are stars that are particularly similar to the Sun. The stellar classification is a hierarchy with solar twin being most like the Sun followed by solar analog and then solar-typ ...
of
spectral type G6 in the constellation of
Coma Berenices.
It has an
apparent magnitude of 11.48. Observations at the
Calar Alto Observatory
The Calar Alto Observatory (Centro Astronómico Hispano en Andalucía or "Spanish Astronomical Centre in Andalusia") is an astronomical observatory located in Almería province in Spain on Calar Alto, a mountain in the Sierra de Los Filabres ra ...
using the
lucky imaging technique detected a candidate companion star located 3.4
arc seconds
A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol , is a unit of Angular unit, angular measurement equal to of one Degree (angle), degree. Since one degree is of a turn (geometry), turn (or complete rotat ...
away, however it is not known if this is an actual binary companion or an
optical double.
Planetary system
It has a
planet that was discovered by
transit photometry in 2011 by the
SuperWASP program. Fourteen transits were observed over three watching seasons, each lasting 214 minutes and reducing the stars' brightness by 14 millimagnitudes.
[ 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.][
]
References
Coma Berenices
G-type main-sequence stars
Solar analogs
Planetary systems with one confirmed planet
Planetary transit variables
J12132790+2303205
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