Q3390675
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PH2, also known as Kepler-86, or KIC 12735740 (2MASS J19190326+5157453), is an F-type main-sequence star distant within the constellation Cygnus. Roughly the size and temperature of the Sun, PH2 gained prominence when it was known to be the host of one of 42 planet candidates detected by the Planet Hunters citizen science project in its second data release. The candidate orbiting around PH2, known as PH2b, had been determined to have a spurious detection probability of only 0.08%, thus effectively confirming its existence as a planet.
Wikidata facts
- Distance from Earth
- 347.27
- Radius
- 1
- Mass
- 0.94
Show 12 more facts
- metallicity
- 0.078
- catalog code
- Gaia DR2 2139300262131379584
- effective temperature
- 5629
- apparent magnitude
- 12.574943
- stellar rotational velocity
- 2.0
- parallax
- 2.9134
- surface gravity
- 28100
- right ascension component of proper motion
- 3.427
- declination component of proper motion
- 16.047
- right ascension
- 289.76359726057
- declination
- 51.96261387466999
- radial velocity
- -22.3
Sources (1)
via Wikidata · CC0
~3 min read
Article
7 sectionsContents
- History of detection
- Planetary system
- See also
- Notes
- References
- Footnotes
- External links
PH2, also known as Kepler-86, or KIC 12735740 (2MASS J19190326+5157453), is an F-type main-sequence star distant within the constellation Cygnus. Roughly the size and temperature of the Sun, PH2 gained prominence when it was known to be the host of one of 42 planet candidates detected by the Planet Hunters citizen science project in its second data release. The candidate orbiting around PH2, known as PH2b, had been determined to have a spurious detection probability of only 0.08%, thus effectively confirming its existence as a planet.
Located in its parent star's habitable zone, PH2b (or Kepler-86b) is a Jupiter-size gas giant which could in theory host a natural satellite suitable for hosting life. The report of the confirmed detection of PH2b was submitted on January 3, 2013. It was discovered by amateur Pole Rafał Herszkowicz using his laptop and access to the Internet project with data from the Kepler space observatory.