PH1b

The star system has the Kepler Input Catalogue name KIC 4862625 as well as the designation Kepler-64.

The close binary (Aa+Ab) that the planet circles has an orbital period of 20 days.

The quadruple star system has an estimated age of two billion years (2 gigayears).

[3] The system is located at right ascension 19h 52m 51.624s declination +39° 57′ 18.36″, so also has a 2MASS catalogue entry of 2MASS 19525162+3957183[14] Kian Jin Jek (Chinese: 易建仁, son of Jek Yeun Thong), from San Francisco, and Robert Gagliano, from Cottonwood, Arizona, spotted the signature of the planet in the Kepler data, and it was reported through the PlanetHunters.org program run by Dr. Chris Lintott, from Oxford University.

Robert Gagliano performed a systematic search, and confirmed the second dip, and found a third, in February 2012.

The planet was subsequently detected by eclipsing binary timing variation method.