Kepler-411
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.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 10m 25.34699s |
| Declination | +49° 31′ 23.7126″ |
| Apparent magnitude (V) | 12.55 |
| Characteristics | |
| Kepler-411A | |
| Evolutionary stage | main-sequence star |
| Spectral type | K3V |
| Astrometry | |
| Kepler-411A | |
| Radial velocity (Rv) | −20.40±0.77 km/s |
| Proper motion (μ) | RA: 13.611 mas/yr Dec.: 32.543 mas/yr |
| Parallax (π) | 6.5313 ± 0.0080 mas |
| Distance | 499.4 ± 0.6 ly (153.1 ± 0.2 pc) |
| Kepler-411B | |
| Proper motion (μ) | RA: 13.263 mas/yr Dec.: 33.008 mas/yr |
| Parallax (π) | 6.5727 ± 0.0573 mas |
| Distance | 496 ± 4 ly (152 ± 1 pc) |
| Position (relative to Kepler-411A) | |
| 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 M☉ |
| Radius | 0.76 R☉ |
| Luminosity | 0.27 L☉ |
| Surface gravity (log g) | 4.58 cgs |
| Temperature | 4,773 K |
| Metallicity [Fe/H] | 0.11±0.1 dex |
| Rotation | 10.52 d |
| Age | 0.212±0.031 Gyr |
| Kepler-411B | |
| Mass | 0.33 M☉ |
| Radius | 0.49 R☉ |
| Temperature | 3,446 K |
| Other designations | |
| Kepler-411A: KOI-1781, KIC 11551692, 2MASS J19102533+4931237 | |
| Kepler-411B: Gaia DR3 2132768956904826624 | |
| Database references | |
| SIMBAD | data |
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