HIP 99770 b

HIP 99770 b
Subaru Telescope detection of HIP 99770 b.
Discovery
Discovered byCurrie et al.[1]
Discovery siteSubaru Telescope
Discovery dateNovember 30, 2022
Direct imaging
Orbital characteristics
16.9+3.4
−1.9AU
Eccentricity0.25+0.14
−0.16
Inclination148+13
−11
StarHIP 99770
Physical characteristics
Mass16.1+5.4
−5.0[1] MJ
Temperature1,400 K[1]

HIP 99770 b [1] is a directly imaged superjovian extrasolar planet orbiting the dusty A-type star HIP 99770 (29 Cygni), detected with Gaia/Hipparcos precision astrometry and high-contrast imaging.[2] HIP 99770 b is the first joint direct imaging + astrometric discovery of an extrasolar planet and the first planet discovered using precision astrometry from the Gaia mission.

  1. ^ a b c d Cite error: The named reference Currie2022 was invoked but never defined (see the help page).
  2. ^ Andrew Jones (April 17, 2023). "Giant exoplanet found, imaged directly thanks to star-mapping data (photos)". Space.com.