YBP 1194 is a G-type main-sequence star, class G5V, in the open cluster Messier 67, about 2,890 light-years (890 parsecs) from the Sun in the constellation Cancer.
[7][3] This system is packed in a small cluster, Messier 67, with a radius of 10 light-years, with over 500 other stars.
[10] The exoplanet YBP 1194 b was discovered in January 2014 by researchers at the European Southern Observatory (ESO) as one of three new planets discovered in the M67 cluster, showing that open star clusters are more likely to have planets in them than previously thought.
YBP 1194 b orbits its star with a 7-day period at a distance of 0.07 AU, closer than the planet Mercury is to the Sun.
The combination of its large mass and close orbit makes this planet a hot Jupiter.