NGTS-13b

Summary

NGTS-13b
Discovery[1]
Discovered byGrieves et al.
Discovery siteChile Paranal Observatory in Chile
Discovery date2021
Transit
Orbital characteristics[1]
0.0549+0.0015
−0.0025
 AU
Eccentricity0.086±0.034
4.12±0.00 d
Inclination88.7±1.2 º
2458573±0
−146.4±24.2 º
Semi-amplitude526.1±9.5 m/s
StarNGTS-13
Physical characteristics
Mean radius
1.142±0.046 RJ [1]
Mass4.84±0.44 MJ [1]
Mean density
4.02±0.55 g/cm3 [1]
Temperature1605±30 K [1]

NGTS-13b is an exoplanet that was discovered by NGTS. It takes 4.12 days to orbit its host star and its discovery was announced in January 2021.

Discovery

The planet was discovered by the Next Generation Transit Survey, and the paper states that exoplanets are usually not found around giants and subgiants due to the host engulfing the planet.

Properties

NGTS-13b has 4 times more mass than Jupiter, but maintains a radius similar to the Jovian planet. The planet has a typical 4 day orbit of a Hot Jupiter, and has an average temperature of 1,605 K, but has a hotter dayside temperature of 1,828 K.[2]

Size comparison
Jupiter NGTS-13b
Jupiter Exoplanet

References

  1. ^ a b c d e f Grieves, Nolan; Nielsen, Louise D.; Vines, Jose I.; Bryant, Edward M.; Gill, Samuel; Bouchy, François; Lendl, Monika; Bayliss, Daniel; Eigmueller, Philipp; Segransan, Damien; Acton, Jack S. (2021-01-11). "NGTS-13b: A hot 4.8 Jupiter-mass planet transiting a subgiant star". Astronomy & Astrophysics. 647: A180. arXiv:2101.04245. Bibcode:2021A&A...647A.180G. doi:10.1051/0004-6361/202039586. S2CID 231582818.
  2. ^ "NGTS-13 b". www.exoplanetkyoto.org. Retrieved 2021-07-11.