Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cygnus |
Right ascension | 19h 10m 25.34699s[1] |
Declination | +49° 31′ 23.7126″[1] |
Apparent magnitude (V) | 12.55[2] |
Characteristics | |
Kepler-411A | |
Evolutionary stage | main-sequence star |
Spectral type | K3V |
Astrometry | |
Kepler-411A | |
Radial velocity (Rv) | −20.40±0.77[1] km/s |
Proper motion (μ) | RA: 13.611[1] mas/yr Dec.: 32.543[1] mas/yr |
Parallax (π) | 6.5313 ± 0.0080 mas[3] |
Distance | 499.4 ± 0.6 ly (153.1 ± 0.2 pc) |
Kepler-411B | |
Proper motion (μ) | RA: 13.263[3] mas/yr Dec.: 33.008[3] mas/yr |
Parallax (π) | 6.5727 ± 0.0573 mas[3] |
Distance | 496 ± 4 ly (152 ± 1 pc) |
Position (relative to Kepler-411A)[4] | |
Component | Kepler-411B |
Epoch of observation | 2012 |
Angular distance | 3.4±0.06″ |
Position angle | 331±3° |
Projected separation | 520 AU |
Details | |
Kepler-411A | |
Mass | 0.75[1] M☉ |
Radius | 0.76[1] R☉ |
Luminosity | 0.27[1] L☉ |
Surface gravity (log g) | 4.58[1] cgs |
Temperature | 4,773[1] K |
Metallicity [Fe/H] | 0.11±0.1[5] dex |
Rotation | 10.52 d[6] |
Age | 0.212±0.031[7] Gyr |
Kepler-411B | |
Mass | 0.33[8] M☉ |
Radius | 0.49[4] R☉ |
Temperature | 3,446[8] K |
Other designations | |
Kepler-411A: KOI-1781, KIC 11551692, 2MASS J19102533+4931237[2] | |
Kepler-411B: Gaia DR3 2132768956904826624 | |
Database references | |
SIMBAD | data |
Kepler-411 is a binary star system. Its primary star Kepler-411A is a K-type main-sequence star, orbited by the red dwarf star Kepler-411B on a wide orbit, discovered in 2012.[4]
Lillo-box2020
was invoked but never defined (see the help page).