K2-25

K2-25

K2-25 is the star at the center of this image.
Observation data
Epoch J2000      Equinox J2000
Constellation Taurus[1]
Right ascension 04h 13m 05.6131s[2]
Declination +15° 14′ 52.018″[2]
Apparent magnitude (V) 15.881[3]
Characteristics
Spectral type M4.5 V[4]
Apparent magnitude (J) 11.303(21)[5]
Apparent magnitude (H) 10.732(20)[5]
Apparent magnitude (K) 10.444(19)[5]
Variable type Planetary transit[4]
Astrometry
Radial velocity (Rv)38.64(15)[4] km/s
Proper motion (μ) RA: 122.450(38) mas/yr[2]
Dec.: −18.603(26) mas/yr[2]
Parallax (π)22.3572 ± 0.0308 mas[2]
Distance145.9 ± 0.2 ly
(44.73 ± 0.06 pc)
Details[6]
Mass0.2634(77) M☉
Radius0.2932(93) R☉
Luminosity0.00816(29) L☉
Temperature3207(58) K
Metallicity [Fe/H]0.15(3)[4] dex
Rotation1.87708(66) d[7]
Rotational velocity (v sin i)7.71(29)[8] km/s
Age650(70)[8][9] Myr
Other designations
vA 50, HAN 87, Gaia DR3 3311804515502788352, EPIC 210490365, 2MASS J04130560+1514520[10][11]
Database references
SIMBADdata

K2-25 is a young red dwarf star located in the Hyades cluster. There is a single known Neptune-sized planet in a 3.5 day orbit.

  1. ^ Cite error: The named reference Roman1987 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Gaia DR3 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference APASS DR9 was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference Mann2016 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Skrutskie2006 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Thao2020 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Mori2024 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Gaidos2020 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Martín2018 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference David2016 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Simbad was invoked but never defined (see the help page).