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TOI-628 b

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TOI-628 b
Discovery
Discovered byTransiting Exoplanet Survey Satellite
Discovery dateJanuary 2021
Transit
Designations
HD 288842 b[1]
Orbital characteristics[1]
0.0486+0.0008
−0.0009
AU
Eccentricity0.07±0.02
3.41 days
Inclination88.41+1.00
−0.93
[2]
StarTOI-628 (HD 288842)
Physical characteristics[1]
1.06+0.06
−0.03
 RJ
Mass6.3±0.3 MJ
Mean density
6.58+0.70
−0.75
 g/cm3
[2]
Temperature1586+52
−40
 K

TOI-628 b is an exoplanet whose mass is 6.33 times that of Jupiter.[1] It has an orbital period of 3.4 days and was discovered by TESS in January 2021. The planet is classified as hot Jupiter, having a equilibrium temperature of 1,586 K (1,313 °C), and a radius 6% larger than that of Jupiter.[1] It is located 583 light years away from Earth.[3][4]

The host star of TOI-628 b is TOI-628, also known as HD 28842, a G-type star[5] located in the constellation Monoceros.[a] It is 1.35 times larger than the Sun, 1.31 times more massive, and has an effective temperature of 6,250 K (5,980 °C).[2] The star has a visual apparent magnitude of 10.112, being not visible to the naked eye.[2] It is moving away from the Sun, with a radial velocity of 20.07 km/s.[2]

References

[edit]
  1. ^ a b c d e "TOI-628 b". Open Exoplanet Catalogue. Retrieved January 30, 2024.
  2. ^ a b c d e "TOI-628 Overview". NASA Exoplanet Archive. Retrieved January 30, 2024.
  3. ^ Rodriguez, Joseph E.; et al. (9 February 2021). "TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images". The Astronomical Journal. 161 (4): 194. arXiv:2101.01726. Bibcode:2021AJ....161..194R. doi:10.3847/1538-3881/abe38a. S2CID 230770138.
  4. ^ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 29 March 2021.
  5. ^ a b "HD 288842". simbad.cds.unistra.fr. Retrieved 2024-01-30.
  1. ^ Constellation found using a right acension of 06h 37m 3.14s and a declination of 01° 46′ 3.2″[5] on this website.