K2-155d

K2-155d
Discovery
Discovered byTeruyuki Hirano et al. [1]
Discovery siteTokyo Institute of Technology
Discovery dateMarch 2018
Transit method
Designations
LP 415-17 c, EPIC 210897587 c[2]
Orbital characteristics
0.1886 (± 0.0066)[3] AU
Eccentricityunknown
40.6835 (± 0.0031)[3] d
Inclinationunknown
StarK2-155
Physical characteristics
1.64 +0.18
−0.17[3] R🜨
Mean density
5.41±1.11 g/cm3
Temperature289 K (16 °C; 61 °F)[4]

K2-155d is a potentially habitable Super-Earth exoplanet in the K2-155 system.[5] It is the outermost of three known planets orbiting around the K-type star K2-155 in the constellation Taurus, approximately 290 light years (90 parsecs) from Earth.[6] It is one of 15 new exoplanets around red dwarf stars discovered by Japanese astronomer Teruyuki Hirano of the Tokyo Institute of Technology and his team.[1] The team used data from NASA's Kepler Space Telescope during its extended K2 "Second Light" mission. K2-155d orbits near the so-called habitable zone of its system, and has the potential to host liquid water.[7][5]

  1. ^ a b "15 new planets confirmed around cool dwarf stars". Tokyo Tech News. March 12, 2018.
  2. ^ "The Extrasolar Planet Encyclopaedia — K2-155 d". Extrasolar Planets Encyclopaedia. Retrieved 2024-04-29.
  3. ^ a b c Cite error: The named reference Hirano_et_al_2018 was invoked but never defined (see the help page).
  4. ^ "HEC: Exoplanets Calculator (K2-155d)". Planetary Habibility Laboratory. Archived from the original on 2017-08-24. Retrieved 2018-03-30.
  5. ^ a b Mack, Eric (March 13, 2018). "A super-Earth around a red star could be wet and wild". CNET.
  6. ^ "K2-155 PLANET HOST OVERVIEW PAGE". NASA Exoplanet Archive.
  7. ^ Cite error: The named reference Newsweek was invoked but never defined (see the help page).