TOI-677 b

Coordinates: Sky map 16h 32m 18.0s, −22° 21′ 30″
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TOI-677 b
Discovery
Discovery siteTransiting Exoplanet Survey Satellite[1]
Discovery date2019[1]
Transit method[1]
Orbital characteristics
0.1038 AU (15,530,000 km)
11.24 d[1]
Inclination87.63
StarTOI-677
Physical characteristics
Mean radius
1.170 RJ[1]
Mass1.236 MJ
Temperature1,252 K (979 °C; 1,794 °F)[1]

TOI-677 b (or TOI-677b; "TOI" refers to "Tess Object of Interest") is a confirmed "warm" super-Jupiter exoplanet orbiting TOI-677, its host star, in the Ophiuchus constellation,[2] about 466 ly (143 pc) away from Earth.[1][3][4][5] The planet was discovered by NASA's Transiting Exoplanet Survey Satellite (TESS) using the transit method, in which the dimming effect that a planet causes as it crosses in front of its star is measured. Discovery of the exoplanet was announced on 13 November 2019.[1][3][4][5]

Confirmed exoplanet[edit]

TOI-677 b is a "warm" super-Jupiter with a temperature of 1,252 K (979 °C; 1,794 °F), and with a mass 1.236 times, and a radius 1.170 times, that of Jupiter.[1] The planet is very close to its bright (V=9.8 mag) main sequence late F host star (based on solar radius, age, temperature and metallicity), TOI-677, and orbits the star once every 11.24 days in an eccentric orbit (e=0.435).[1][3]

See also[edit]

References[edit]

  1. ^ a b c d e f g h i j Jordán, Andrés; et al. (2020). "TOI-677 b: A Warm Jupiter (P=11.2d) on an eccentric orbit transiting a late F-type star". The Astronomical Journal. 159 (4): 145. arXiv:1911.05574. Bibcode:2020AJ....159..145J. doi:10.3847/1538-3881/ab6f67.
  2. ^ Staff (2 August 2008). "Finding the constellation which contains given sky coordinates". DJM.cc. Retrieved 26 November 2019.
  3. ^ a b c Nowakowski, Tomasz (21 November 2019). "New 'warm Jupiter' exoplanet discovered". Phys.org. Retrieved 26 November 2019.
  4. ^ a b Wehner, Mike (21 November 2019). "Astronomers spot steamy new exoplanet". Boy Genius Report. Retrieved 26 November 2019.
  5. ^ a b Gullett, Melanie J. (25 November 2019). "New "Warm Jupiter" Exoplanet Has Been Discovered". UpLoadComet.com. Retrieved 26 November 2019.

External links[edit]

Wikimedia Commons has media related to Transiting Exoplanet Survey Satellite.
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