NGTS-13b

Last updated
NGTS-13b
Discovery [1]
Discovered by Grieves et al.
Discovery site Paranal Observatory in Chile
Discovery date2021
Transit
Orbital characteristics [1]
0.0549+0.0015
−0.0025
  AU
Eccentricity 0.086±0.034
4.12±0.00  d
Inclination 88.7±1.2 º
2458573±0
−146.4±24.2 º
Semi-amplitude 526.1±9.5  m/s
Star NGTS-13
Physical characteristics
1.142±0.046  RJ [1]
Mass 4.84±0.44  MJ [1]
Mean density
4.02±0.55  g/cm3 [1]
Temperature 1605±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
JupiterNGTS-13b
Small Jupiter.jpg Exoplanet sphere.jpg

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.