WASP-79b

WASP-79b is an extrasolar planet orbiting the star CD-30 1812. This planet is in the constellation Eridanus, and is about 810 light-years from Earth.

WASP-79b
Discovery
Discovered bySmalley et al.[1]
Discovery dateJune 1 2012[1]
Transit method[1]
Orbital characteristics
0.0535±0.0008 AU
Eccentricity0[1]
3.662366±0.0000085[1] d
Inclination83.3±0.5°[1]
StarWASP-79
Physical characteristics
Mean radius
2.09±0.14[1] RJ
Mass0.90±0.08[1] MJ
Temperature1900±50[1] K

    The planet WASP-79b is named Pollera. The name was selected in the NameExoWorlds campaign by Panama, during the 100th anniversary of the IAU. Pollera is the traditional costume the woman wears in the El Punto, a Panamanian dance.[2][3]

    Host star

    WASP-79, or CD-30 1812, is a F-type dwarf star located at 240 parsecs (810 light years) away from Earth. With 1.38 M☉ and 1.53 R☉, it is both larger and more massive than the Sun. Its effective temperature is 6,600 K, making it hotter than the Sun.[1]

    The star WASP-79 is named Montuno. Montuno is the traditional costume the man wears in the “El Punto”, a Panamanian dance.[2]

    Characteristics

    WASP-79b is a very large hot jupiter that is among the largest exoplanets discovered although its size is uncertain. It is most likely to be larger at 2.09 ± 0.14 RJ (approximately 300,000 kilometers across) with a temperature of 1,900 ± 50 K. However, it could be as small as 1.7 ± 0.11 RJ (approximately 240,000 kilometers across), which is comparable to the size of another hot jupiter WASP-78b, with a temperature at 1,770 ± 50 K. Despite being larger than Jupiter, it is slightly less massive.[1]

    In 2019 and 2020, the transmission spectra of WASP-79b were taken utilizing HST and Spitzer Space Telescope, with best fit being the hazy atmosphere containing water and Iron(I) hydride.[4] [5]

    gollark: Yes, physical ones are better.
    gollark: Well, it's entirely possible that helloboi was beeoidal with those.
    gollark: This is separate from my *submission*, available earlier in the history.
    gollark: Well, here's my code, if anyone wants it.
    gollark: I mean, C isn't even technically Turing-complete, and Python is written in C, so it's fine.

    See also

    References
    1. Smalley, B; Anderson, D. R; Collier-Cameron, A; Doyle, A. P; Fumel, A; Gillon, M; Hellier, C; Jehin, E; Lendl, M; Maxted, P. F. L; Pepe, F; Pollacco, D; Queloz, D; Ségransan, D; Smith, A. M. S; Southworth, J; Triaud, A. H. M. J; Udry, S; West, R. G (2012). "WASP-78b and WASP-79b: Two highly-bloated hot Jupiter-mass exoplanets orbiting F-type stars in Eridanus". Astronomy & Astrophysics. 547: A61. arXiv:1206.1177. Bibcode:2012A&A...547A..61S. doi:10.1051/0004-6361/201219731.
    2. "Approved names". NameExoworlds. Retrieved 2020-01-02.
    3. "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
    4. Smalley, B.; Anderson, D. R.; Collier-Cameron, A.; Doyle, A. P.; Fumel, A.; Gillon, M.; Hellier, C.; Jehin, E.; Lendl, M.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Segransan, D.; Smith, A. M. S.; Southworth, J.; Triaud, A. H. M. J.; Udry, S.; West, R. G.; Rathcke, Alexander D.; Sanz-Forcada, Jorge (2019). "Transmission Spectroscopy of WASP-79b from 0.6 to 5.0 μm". The Astronomical Journal. 159: 5. arXiv:1911.02051. doi:10.3847/1538-3881/ab5442.
    5. Skaf, Nour; Michelle Fabienne Bieger; Edwards, Billy; Changeat, Quentin; Morvan, Mario; Kiefer, Flavien; Blain, Doriann; Zingales, Tiziano; Poveda, Mathilde; Al-Refaie, Ahmed; Baeyens, Robin; Gressier, Amelie; Guilluy, Gloria; Adam Yassin Jaziri; Modirrousta-Galian, Darius; Mugnai, Lorenzo V.; Pluriel, William; Whiteford, Niall; Wright, Sam; Kai Hou Yip; Charnay, Benjamin; Leconte, Jeremy; Drossart, Pierre; Tsiaras, Angelos; Venot, Olivia; Waldmann, Ingo; Beaulieu, Jean-Philippe (2020). "ARES II: Characterising the Hot Jupiters WASP-127 b, WASP-79 b and WASP-62 b with HST". arXiv:2005.09615 [astro-ph.EP].
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