HD 94717
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  | |
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Chamaeleon[1] |
| Right ascension | 10h 52m 28.63166s[2] |
| Declination | −79° 33′ 33.9765″[2] |
| Apparent magnitude (V) | 6.34±0.01[3] |
| Characteristics | |
| Evolutionary stage | red giant branch[2] |
| Spectral type | K2 II/III[4] |
| U−B color index | +1.57[5] |
| B−V color index | +1.46[5] |
| Astrometry | |
| Radial velocity (Rv) | 3.4±0.5[6] km/s |
| Proper motion (μ) | RA: −11.341 mas/yr[2] Dec.: +1.655 mas/yr[2] |
| Parallax (π) | 1.8682±0.021 mas[2] |
| Distance | 1,750 ± 20 ly (535 ± 6 pc) |
| Absolute magnitude (MV) | −2.10[7] |
| Details | |
| Mass | 6.3±0.7[8] M☉ |
| Radius | 77.8±3.9[9] R☉ |
| Luminosity | 1,847+46 −49[2] L☉ |
| Surface gravity (log g) | 1.47±0.04[2] cgs |
| Temperature | 4,446±122[10] K |
| Metallicity [Fe/H] | −0.01[2] dex |
| Rotational velocity (v sin i) | 2.4±1.3[11] km/s |
| Age | 63±20[8] Myr |
| Other designations | |
| 28 G. Chamaeleontis[12], CD−78°438, CPD−78°589, GC 14988, HD 94717, HIP 53151, HR 4268, SAO 256768[13] | |
| 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,[3] 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,[2] but it is receding with a heliocentric radial velocity of 3.4 km/s.[6] At its current distance, HD 94717's brightness is diminished by 0.62 magnitudes due to interstellar dust.[14]
HD 94717 has a stellar classification of K2 II/III,[4] 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,[8] enough time for it to cool and expand to 78 times the Sun's radius.[9] It has 6.3 times the mass of the Sun[8] and radiates 1,847 times the luminosity of the Sun[2] from its photosphere at an effective temperature of 4,446 K.[10] HD 94717 has a solar metallicity[2] and spins modestly with a projected rotational velocity of 2.4 km/s.[11]
