Kepler-289 Explained

Kepler-289 (PH3) is a rotating variable star slightly more massive than the Sun, with an unknown spectral type, 2370 light-years away from Earth in the constellation of Cygnus. In 2014, three exoplanets were discovered orbiting it.[1]

Planetary system

Kepler-289 hosts four planets, three confirmed (Kepler-289b,[2] [3] [4] Kepler-289c,[5] [6] [7] Kepler-289d[8] [9]) and one unconfirmed candidate (Kepler-289e). The discovery of this system was made using the transit method. The inner three planets were found in 2014 with the Kepler space telescope and the Planet Hunters team, while planet e was discovered by follow-up studies in 2017.

Notes and References

  1. Web site: Kepler-289 NASA Exoplanet Archive . exoplanetarchive.ipac.caltech.edu . 10 September 2023.
  2. Web site: Kepler-289 b. exoplanetarchive.ipac.caltech.edu. 2020-02-11.
  3. Encyclopedia: The Extrasolar Planet Encyclopaedia — Kepler-289b . . 10 September 2023.
  4. Zacharias. N.. Finch. C.. Subasavage. J.. Bredthauer. G.. Crockett. C.. Divittorio. M.. Ferguson. E.. Harris. F.. Harris. H.. Henden. A.. Kilian. C.. October 2015. The First U.S. Naval Observatory Robotic Astrometric Telescope Catalog. The Astronomical Journal. en. 150. 4. 101. 10.1088/0004-6256/150/4/101. 0004-6256. 1508.04637. 2015AJ....150..101Z. 32535965.
  5. Encyclopedia: The Extrasolar Planet Encyclopaedia — Kepler-289c . . 10 September 2023.
  6. Schmitt. Joseph R.. Agol. Eric. Deck. Katherine M.. Rogers. Leslie A.. Gazak. J. Zachary. Fischer. Debra A.. Wang. Ji. Holman. Matthew J.. Jek. Kian J.. Margossian. Charles. Omohundro. Mark R.. November 2014. Planet Hunters. VII. Discovery of a New Low-mass, Low-density Planet (PH3c) Orbiting Kepler-289 with Mass Measurements of Two Additional Planets (PH3b and d). Astrophysical Journal. en. 795. 2. 167. 10.1088/0004-637X/795/2/167. 1410.8114. 2014ApJ...795..167S. 0004-637X. 1721.1/93116. 37872448. free.
  7. Web site: Kepler-289 c. exoplanetarchive.ipac.caltech.edu. 2020-02-11.
  8. Web site: Kepler-289 d. exoplanetarchive.ipac.caltech.edu. 2020-02-11.
  9. Encyclopedia: The Extrasolar Planet Encyclopaedia — Kepler-289d . . 10 September 2023.

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