# Q89517047

> exoplanet in the constellation Ophiuchus

**Wikidata**: [Q89517047](https://www.wikidata.org/wiki/Q89517047)  
**Source**: https://4ort.xyz/entity/q89517047


## References

1. SIMBAD
2. Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes
3. HAT-P-57b: A SHORT-PERIOD GIANT PLANET TRANSITING A BRIGHT RAPIDLY ROTATING A8V STAR CONFIRMED VIA DOPPLER TOMOGRAPHY
4. ExoClock project II: A large-scale integrated study with 180 updated exoplanet ephemerides
5. ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
6. Extrasolar Planets Encyclopaedia
7. Exoplanet Archive
8. Gaia Data Release 2