Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
---|---|
Constellation | Chamaeleon |
Right ascension | 10h 52m 28.63166s [1] |
Declination | −79° 33′ 33.9765″ [1] |
Apparent magnitude (V) | 6.34±0.01 [2] |
Characteristics | |
Spectral type | K2 II/III [3] |
U−B color index | +1.57 [4] |
B−V color index | +1.46 [4] |
Astrometry | |
Radial velocity (Rv) | 3.4±0.5 [5] km/s |
Proper motion (μ) |
RA: −11.341
mas/
yr
[1] Dec.: +1.655 mas/ yr [1] |
Parallax (π) | 1.8682 ± 0.021 mas [1] |
Distance | 1,750 ± 20
ly (535 ± 6 pc) |
Absolute magnitude (MV) | −2.10 [6] |
Details | |
Mass | 6.3±0.7 [7] M☉ |
Radius | 77.8±3.9 [8] R☉ |
Luminosity | 1,847+46 −49 [1] L☉ |
Surface gravity (log g) | 1.47±0.04 [1] cgs |
Temperature | 4,446±122 [9] K |
Metallicity [Fe/H] | −0.01 [1] dex |
Rotational velocity (v sin i) | 2.4±1.3 [10] km/s |
Age | 63±20 [7] Myr |
Other designations | |
Database references | |
SIMBAD | data |
HD 94717, also known as HR 4268, is a solitary orange hued star located in the southern circumpolar constellation Chamaeleon. It has an apparent magnitude of 6.34, [2] placing it near the limit for naked eye visibility. The object is located relatively far at a distance of 1,750 light years based on Gaia DR3 parallax measurements, [1] but it is receding with a heliocentric radial velocity of 3.4 km/s. [5] At its current distance, HD 94717's brightness is diminished by 0.62 magnitudes due to interstellar dust. [13]
HD 94717 has a stellar classification of K2 II/III, [3] indicating that it is an evolved red giant with the blended luminosity class of a giant star and a bright giant. It is estimated to be 63 million years old, [7] enough time for it to cool and expand to 78 times the Sun's radius. [8] It has 6.3 times the mass of the Sun [7] and radiates 1,847 times the luminosity of the Sun [1] from its photosphere at an effective temperature of 4,446 K. [9] HD 94717 has a solar metallicity [1] and spins modestly with a projected rotational velocity of 2.4 km/s. [10]
Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
---|---|
Constellation | Chamaeleon |
Right ascension | 10h 52m 28.63166s [1] |
Declination | −79° 33′ 33.9765″ [1] |
Apparent magnitude (V) | 6.34±0.01 [2] |
Characteristics | |
Spectral type | K2 II/III [3] |
U−B color index | +1.57 [4] |
B−V color index | +1.46 [4] |
Astrometry | |
Radial velocity (Rv) | 3.4±0.5 [5] km/s |
Proper motion (μ) |
RA: −11.341
mas/
yr
[1] Dec.: +1.655 mas/ yr [1] |
Parallax (π) | 1.8682 ± 0.021 mas [1] |
Distance | 1,750 ± 20
ly (535 ± 6 pc) |
Absolute magnitude (MV) | −2.10 [6] |
Details | |
Mass | 6.3±0.7 [7] M☉ |
Radius | 77.8±3.9 [8] R☉ |
Luminosity | 1,847+46 −49 [1] L☉ |
Surface gravity (log g) | 1.47±0.04 [1] cgs |
Temperature | 4,446±122 [9] K |
Metallicity [Fe/H] | −0.01 [1] dex |
Rotational velocity (v sin i) | 2.4±1.3 [10] km/s |
Age | 63±20 [7] Myr |
Other designations | |
Database references | |
SIMBAD | data |
HD 94717, also known as HR 4268, is a solitary orange hued star located in the southern circumpolar constellation Chamaeleon. It has an apparent magnitude of 6.34, [2] placing it near the limit for naked eye visibility. The object is located relatively far at a distance of 1,750 light years based on Gaia DR3 parallax measurements, [1] but it is receding with a heliocentric radial velocity of 3.4 km/s. [5] At its current distance, HD 94717's brightness is diminished by 0.62 magnitudes due to interstellar dust. [13]
HD 94717 has a stellar classification of K2 II/III, [3] indicating that it is an evolved red giant with the blended luminosity class of a giant star and a bright giant. It is estimated to be 63 million years old, [7] enough time for it to cool and expand to 78 times the Sun's radius. [8] It has 6.3 times the mass of the Sun [7] and radiates 1,847 times the luminosity of the Sun [1] from its photosphere at an effective temperature of 4,446 K. [9] HD 94717 has a solar metallicity [1] and spins modestly with a projected rotational velocity of 2.4 km/s. [10]