Kepler-42
Red dwarf star in the constellation Cygnus / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Kepler-42?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Kepler-42, formerly known as KOI-961, is a red dwarf located in the constellation Cygnus and approximately 131 light years from the Sun. It has three known extrasolar planets, all of which are smaller than Earth in radius,[5] and likely also in mass.[citation needed]
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cygnus |
Right ascension | 19h 28m 52.5689s[1] |
Declination | 44° 37′ 08.990″[1] |
Apparent magnitude (V) | 16.12[2] |
Characteristics | |
Spectral type | M5V[3] |
Astrometry | |
Radial velocity (Rv) | −84.48±0.2[3] km/s |
Proper motion (μ) | RA: 93.074(24) mas/yr[1] Dec.: −417.393(25) mas/yr[1] |
Parallax (π) | 24.9338 ± 0.0204 mas[1] |
Distance | 130.8 ± 0.1 ly (40.11 ± 0.03 pc) |
Details | |
Mass | 0.144+0.007 −0.006[4] M☉ |
Radius | 0.175±0.006[4] R☉ |
Luminosity | 3.08±0.28x10−3.0[4] L☉ |
Temperature | 3269±19[4] K |
Metallicity [Fe/H] | −0.48±0.17[3] dex |
Rotational velocity (v sin i) | 2.9±0.4[3] km/s |
Other designations | |
Database references | |
SIMBAD | data |
KIC | data |
Close