Kappa Coronae Borealis
Star in the constellation Corona Borealis / 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 Kappa Coronae Borealis?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Kappa Coronae Borealis, Latinized from κ Coronae Borealis, is a star approximately 98 light years away in the constellation of Corona Borealis. The apparent magnitude is +4.82 (4.17 trillion times fainter than the Sun) and the absolute magnitude is +2.35 (9.82 times brighter than the Sun). It is an orange K-type subgiant star of spectral type K1IV, meaning it has almost completely exhausted its hydrogen supply in its core. It is 1.32 times as massive as the Sun yet has brightened to 11.6 times its luminosity. Around 2.5 billion years old, it was formerly an A-type main sequence star.[6]
Quick Facts Observation data Epoch J2000.0 Equinox J2000.0, Constellation ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Corona Borealis |
Right ascension | 15h 51m 13.9315s[1] |
Declination | +35° 39′ 26.5647″[1] |
Apparent magnitude (V) | +4.79[2] |
Characteristics | |
Spectral type | K0 III-IV[2] |
Astrometry | |
Proper motion (μ) | RA: −8.792±0.177[1] mas/yr Dec.: −347.766±0.202[1] mas/yr |
Parallax (π) | 33.2328 ± 0.1083 mas[1] |
Distance | 98.1 ± 0.3 ly (30.09 ± 0.10 pc) |
Absolute magnitude (MV) | +2.37[3] |
Details[4] | |
Mass | 1.32±0.10 M☉ |
Radius | 4.77±0.07 R☉ |
Luminosity | 11.6±0.3 L☉ |
Surface gravity (log g) | 3.15±0.14 cgs |
Temperature | 4,870±47 K |
Metallicity [Fe/H] | +0.13±0.03 dex |
Other designations | |
Database references | |
SIMBAD | data |
Close