Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
---|---|
Constellation | Chamaeleon |
Right ascension | 10h 00m 43.7937s [1] |
Declination | −82° 12′ 52.8125″ [1] |
Apparent magnitude (V) | 5.53 [2] |
Characteristics | |
Spectral type | A0 IV [3] |
U−B color index | +0.05 [4] |
B−V color index | +0.03 [4] |
Astrometry | |
Radial velocity (Rv) | 16±10 [5] km/s |
Proper motion (μ) |
RA: −26.011
mas/
yr
[1] Dec.: +31.141 mas/ yr [1] |
Parallax (π) | 8.0957 ± 0.0795 mas [1] |
Distance | 403 ± 4
ly (124 ± 1 pc) |
Absolute magnitude (MV) | +0.23 [2] |
Details | |
Mass | 2.6 [6] M☉ |
Radius | 3.66 [7] R☉ |
Luminosity | 90.7 [8] L☉ |
Surface gravity (log g) | 3.73 [6] cgs |
Temperature | 10,141+157 −240 [9] K |
Metallicity [Fe/H] | −0.18 [6] dex |
Rotational velocity (v sin i) | 150 [10] km/s |
Other designations | |
Database references | |
SIMBAD | data |
μ1 Chamaeleontis, Latinized as Mu1 Chamaeleontis, is a single [12] star in the southern circumpolar constellation Chamaeleon. It is dimly visible to the naked eye with an apparent visual magnitude of 5.53. [2] Based upon parallax measurements, it is located approximately 403 light-years away from the Sun. [1] The radial velocity is poorly constrained, but it appears to be drifting further away at the rate of about 16 km/s [5]
This object has a stellar classification of A0 IV, [3] matching an A-type subgiant star. It has 2.6 times the mass of the Sun [6] and an effective temperature of 10,141 K, [9] giving a bluish white glow. Due to its slightly enlarged radius, [7] the star has a luminosity over 90 times that of the Sun [8] and spins rapidly with a projected rotational velocity of 150 km/s. [10] Mu1 Chamaeleontis' metallicity – elements heavier than helium – is 66% that of the Sun. [6]
Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
---|---|
Constellation | Chamaeleon |
Right ascension | 10h 00m 43.7937s [1] |
Declination | −82° 12′ 52.8125″ [1] |
Apparent magnitude (V) | 5.53 [2] |
Characteristics | |
Spectral type | A0 IV [3] |
U−B color index | +0.05 [4] |
B−V color index | +0.03 [4] |
Astrometry | |
Radial velocity (Rv) | 16±10 [5] km/s |
Proper motion (μ) |
RA: −26.011
mas/
yr
[1] Dec.: +31.141 mas/ yr [1] |
Parallax (π) | 8.0957 ± 0.0795 mas [1] |
Distance | 403 ± 4
ly (124 ± 1 pc) |
Absolute magnitude (MV) | +0.23 [2] |
Details | |
Mass | 2.6 [6] M☉ |
Radius | 3.66 [7] R☉ |
Luminosity | 90.7 [8] L☉ |
Surface gravity (log g) | 3.73 [6] cgs |
Temperature | 10,141+157 −240 [9] K |
Metallicity [Fe/H] | −0.18 [6] dex |
Rotational velocity (v sin i) | 150 [10] km/s |
Other designations | |
Database references | |
SIMBAD | data |
μ1 Chamaeleontis, Latinized as Mu1 Chamaeleontis, is a single [12] star in the southern circumpolar constellation Chamaeleon. It is dimly visible to the naked eye with an apparent visual magnitude of 5.53. [2] Based upon parallax measurements, it is located approximately 403 light-years away from the Sun. [1] The radial velocity is poorly constrained, but it appears to be drifting further away at the rate of about 16 km/s [5]
This object has a stellar classification of A0 IV, [3] matching an A-type subgiant star. It has 2.6 times the mass of the Sun [6] and an effective temperature of 10,141 K, [9] giving a bluish white glow. Due to its slightly enlarged radius, [7] the star has a luminosity over 90 times that of the Sun [8] and spins rapidly with a projected rotational velocity of 150 km/s. [10] Mu1 Chamaeleontis' metallicity – elements heavier than helium – is 66% that of the Sun. [6]