Location of HD 94717 on the map (circled) | |
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
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Constellation | Chamaeleon |
Right ascension | 10h52m 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 | |
28 G. Chamaeleontis[11], CD−78°438, CPD−78°589, GC 14988, HD 94717, HIP 53151, HR 4268, SAO 256768[12] | |
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 velocityof3.4 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 temperatureof4,446 K.[9] HD 94717 has a solar metallicity[1] and spins modestly with a projected rotational velocityof2.4 km/s.[10]