Kepler-30

Kepler-30
Observation data
Epoch J2000      Equinox J2000
Constellation Lyra
Right ascension 19h 01m 08.0747s
Declination +38° 56′ 50.219″
Apparent magnitude (V) 15.5
Characteristics
Spectral type K
Astrometry
Proper motion (μ) RA: 0.695±0.055 mas/yr
Dec.: −4.761±0.052 mas/yr
Parallax (π)1.0657 ± 0.0321 mas
Distance3,060 ± 90 ly
(940 ± 30 pc)
Details
Mass0,99±0,08 M
Radius0.95 R
Temperature5498±54 K
Metallicity [Fe/H]0,18±0,27 dex
Rotation16.004±0.017 days
Rotational velocity (v sin i)1,94±0,22 km/s
Other designations
KOI-806, KIC 3832474, UCAC2 45365178, 2MASS J19010807+3856502, SDSS J190108.07+385650.2
Database references
SIMBADdata
KICdata

Kepler-30 is a star in the northern constellation of Lyra. It is located at the celestial coordinates: Right Ascension 19h 01m 08.0747s Declination +38° 56′ 50.219″. With an apparent visual magnitude of 15.5, this star is too faint to be seen with the naked eye. Kepler-30 is exhibiting a strong starspot activity.

Planetary system

Three planets of Kepler-30 were detected by the transit method in 2011. The planets are strongly interacting each other, with transit times variability exceeding one hour for each consecutive orbit. Due irregularity of orbits, confirmation of planetary system was delayed until 2012. The planetary periods are close to 1:2:5 orbital resonance but are not resonant, producing an extremely complex orbital dynamics.

The Kepler-30 planetary system
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b 9.2±0.1 M🜨 0.18479±0.000004 29.2187±0.0009 0.0770±0.0003 89.51±0.32° 3.75±0.18 R🜨
c 536±5 M🜨 0.29977±0.000001 60.32503±0.00010 0.0115±0.0005 89.74±0.02° 11.98±0.28 R🜨
d 23.7±1.3 M🜨 0.53178±0.00001 142.642±0.006 0.0272±0.0024 89.81±0.02° 8.79±0.13 R🜨

This page was last updated at 2024-03-12 09:22 UTC. Update now. View original page.

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