K2-415

Last updated
K2-415
Observation data
Epoch J2000        Equinox J2000
Constellation Cancer [1]
Right ascension 09h 08m 48.85461s [2]
Declination +11° 51′ 41.1161″ [2]
Apparent magnitude  (V)15.330 [3]
Characteristics
Evolutionary stage Main sequence
Spectral type M5V [3]
Apparent magnitude  (V)15.330±0.027 [3]
Apparent magnitude  (G)13.7957±0.0004 [3]
Apparent magnitude  (J)10.739±0.026 [3]
Apparent magnitude  (H)10.170±0.023 [3]
Apparent magnitude  (K)9.899±0.023 [3]
Astrometry
Proper motion (μ)RA: -458.503 mas/yr [2]
Dec.: 192.574 mas/yr [2]
Parallax (π)45.8625±0.0196  mas [2]
Distance 71.12 ± 0.03  ly
(21.804 ± 0.009  pc)
Details [3]
Mass 0.1635±0.0041  M☉
Radius 0.1965±0.0058  R☉
Luminosity (bolometric)0.00351+0.00033
−0.00030  L☉
Surface gravity (log g)5.066±0.027  cgs
Temperature 3173±53  K
Metallicity [Fe/H]−0.13±0.18  dex
Rotation 4.26±0.12  d
Rotational velocity (v sin i)~2.3 km/s
Other designations
K2-415, GJ 11330, G 41-26, LHS 5144, LSPM J0908+1151, NLTT 21051, EPIC 211414619, TOI-5557, TIC 323687123, 2MASS J09084885+1151411 [4] [3]
Database references
SIMBAD data

K2-415 is an M5 red dwarf star located 72 light-years from Earth. K2-415 has a mass that is 16% of the mass of the Sun. [5]

Planetary system

The star has one known planet orbiting it: K2-415b.

The K2-415 planetary system [3]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b 3.0±2.7  M🜨 0.0270±0.000234.0179694±0.0000027—89.32±0.41 ° 1.015±0.051  R🜨

References

  1. ↑ "Finding the constellation which contains given sky coordinates". djm.cc. 2 August 2008.
  2. 1 2 3 4 5 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211 . Bibcode:2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940 . S2CID   244398875. Gaia DR3 record for this source at VizieR.
  3. 1 2 3 4 5 6 7 8 9 10 Hirano, Teruyuki; Dai, Fei; et al. (March 2023). "An Earth-sized Planet around an M5 Dwarf Star at 22 pc". The Astronomical Journal . 165 (3): 131. arXiv: 2302.00699 . Bibcode:2023AJ....165..131H. doi: 10.3847/1538-3881/acb7e1 .
  4. ↑ "G 41-26". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 9 April 2023.
  5. ↑ Alaeva, Liliia (2023-02-06). "Earth's twin is found in the nearest planetary system". Журнал The Universemagazine Space Tech. Retrieved 2023-04-05.


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