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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]

TOI 677 b
Discovery
Discovery siteTransiting Exoplanet Survey Satellite[1]
Discovery date2019[1]
Detection method
Transit method[1]
Orbital characteristics
Semi-major axis
0.1038 AU (15,530,000 km)
Orbital period (sidereal)
11.24 d[1]
Inclination87.63
StarTOI 677
Physical characteristics
Mean radius
1.170 RJ[1]
Temperature1,252 K (979 °C; 1,794 °F)[1]

    Confirmed exoplanet


    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



    References


    1. 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. Nowakowski, Tomasz (21 November 2019). "New 'warm Jupiter' exoplanet discovered". Phys.org. Retrieved 26 November 2019.
    4. Wehner, Mike (21 November 2019). "Astronomers spot steamy new exoplanet". Boy Genius Report. Retrieved 26 November 2019.
    5. Gullett, Melanie J. (25 November 2019). "New "Warm Jupiter" Exoplanet Has Been Discovered". UpLoadComet.com. Retrieved 26 November 2019.


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