Kepler-24

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Kepler-24
Observation data
Epoch J2000      Equinox J2000
Constellation Lyra[1]
Right ascension 19h 21m 39.1858s[2]
Declination +38° 20′ 37.450″[2]
Apparent magnitude (V) 15.5[3]
Characteristics
Spectral type G5[4]
Astrometry
Proper motion (μ) RA: −2.227±0.044[2] mas/yr
Dec.: −1.825±0.042[2] mas/yr
Parallax (π)0.8361 ± 0.0238[2] mas
Distance3,900 ± 100 ly
(1,200 ± 30 pc)
Details
Mass1.11[3] M
Radius1.07 ± 0.16[3] R
Luminosity0.79 ± 0.04[3] L
Temperature5800 ± 200[3] K
Metallicity [Fe/H]–0.24 ± 0.40[3] dex
Rotation10.080±0.154 days[5]
Other designations
KOI-1102, KIC 3231341, 2MASS J19213918+3820375
Database references
SIMBADdata
KICdata

Kepler-24 is a star in the northern constellation of Lyra. It is located at the celestial coordinates: Right Ascension 19h 21m 39.0s, Declination +38° 20′ 37″.[6] With an apparent visual magnitude of 15.5,[3] this star is too faint to be seen with the naked eye.

The Kepler-24 planetary system[4]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
d 0.051 4.244384 1.67 R
b < 1.6 MJ 0.106 8.1453 2.4 R
c < 1.6 MJ 0.068 12.3335 2.8 R
e 0.138 18.998355 2.78 R

References[edit]

  1. ^ "Lyra – constellation boundary", The Constellations, International Astronomical Union, retrieved 2011-12-15
  2. ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia Data Release 2 Vizier catalog entry
  3. ^ a b c d e f g Kepler-24b, NASA Ames Research Center, retrieved 2011-12-06
  4. ^ a b Schneider, Jean, "Star: Kepler-24", Extrasolar Planets Encyclopaedia, Paris Observatory, archived from the original on 2012-05-05, retrieved 2013-12-18
  5. ^ McQuillan, A.; Mazeh, T.; Aigrain, S. (2013). "Stellar Rotation Periods of The Kepler objects of Interest: A Dearth of Close-In Planets Around Fast Rotators". The Astrophysical Journal Letters. 775 (1). L11. arXiv:1308.1845. Bibcode:2013ApJ...775L..11M. doi:10.1088/2041-8205/775/1/L11.
  6. ^ "Kepler Discoveries". 2011-12-05.

Coordinates: Sky map 19h 21m 39.0s, +38° 20′ 37″