Loading AI tools
Star in the constellation Chamaeleon From Wikipedia, the free encyclopedia
HD 76236, also designated as HR 3543 or rarely 11 G. Chamaeleontis,[12] is a solitary star[14] located in the southern circumpolar constellation Chamaeleon. It is faintly visible to the naked eye as an orange-hued star with an apparent magnitude of 5.77.[2] Based on parallax measurements from the Gaia satellite, the object is estimated to be 612 light years away.[1] Currently, it is receding with a heliocentric radial velocity of 7 km/s.[5] At its current distance, HD 76236's brightness is diminished by 0.39 magnitudes due to interstellar dust.[15] It has an absolute magnitude of −0.13.[6]
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Chamaeleon |
Right ascension | 08h 45m 55.14862s[1] |
Declination | −79° 30′ 15.7456″[1] |
Apparent magnitude (V) | 5.77±0.01[2] |
Characteristics | |
Spectral type | K5 III[3] |
U−B color index | +1.96[4] |
B−V color index | +1.60[4] |
Astrometry | |
Radial velocity (Rv) | 7±0.4[5] km/s |
Proper motion (μ) | RA: −27.042[1] mas/yr Dec.: +81.026[1] mas/yr |
Parallax (π) | 5.3327 ± 0.049 mas[1] |
Distance | 612 ± 6 ly (188 ± 2 pc) |
Absolute magnitude (MV) | −0.13[6] |
Details | |
Mass | 1.78±0.09[7] M☉ |
Radius | 53.1±2.7[8] R☉ |
Luminosity | 950+160 −60[1] L☉ |
Surface gravity (log g) | 1.18[9] cgs |
Temperature | 3,989±122[10] K |
Metallicity [Fe/H] | +0.27[9] dex |
Rotational velocity (v sin i) | 3±1.1[11] km/s |
Other designations | |
Database references | |
SIMBAD | data |
This is an evolved red giant with a stellar classification K5 III.[3] It has 1.78 times the mass of the Sun[7] and an enlarged radius of 53.1 R☉.[8] It radiates 950 times the luminosity of the Sun[1] from its photosphere at an effective temperature of 3,989 K.[10] HD 76236 has an iron abundance nearly twice of the Sun's,[9] making it metal enriched. It spins modestly with a projected rotational velocity of 3 km/s. An infrared excess has been detected around HD 76236, indicating that the star may have a circumstellar disk.[16][17]
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.