NGTS-13b
Discovery[1]
Discovered byGrieves et al.
Discovery siteParanal 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. 1 2 3 4 5 6 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.
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