Kepler-1625
Kepler-1625 is a 14th-magnitude solar-mass star located in the constellation of Cygnus approximately 7,200 light-years (2,200 parsecs) away. Its mass is within 5% of that of the Sun, but its radius is approximately 70% larger reflecting its more evolved state. A candidate gas giant exoplanet was detected by the Kepler Mission around the star in 2015, which was later validated as a real planet to >99% confidence in 2016. In 2018, the Hunt for Exomoons with Kepler project reported evidence for a Neptune-sized exomoon around this planet, based on observations from NASA’s Kepler mission and the Hubble Space Telescope. Subsequently, the evidence for and reality of this exomoon candidate has been subject to debate.
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 41m 43.04008s |
| Declination | +39° 53′ 11.4990″ |
| Characteristics | |
| Apparent magnitude (K) | 13.916 |
| Astrometry | |
| Proper motion (μ) | RA: −2.088(32) mas/yr Dec.: −4.804(32) mas/yr |
| Parallax (π) | 0.4548 ± 0.0289 mas |
| Distance | 7,200 ± 500 ly (2,200 ± 100 pc) |
| Details | |
| Mass | 1.04±0.08 M☉ |
| Radius | 1.73±0.24 R☉ |
| Luminosity (bolometric) | 2.57±0.68 L☉ |
| Surface gravity (log g) | 3.99±0.10 cgs |
| Temperature | 5563±86 K |
| Metallicity [Fe/H] | 0.06±0.13 dex |
| Age | 8.7±2.1 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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