HD 115088
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| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Chamaeleon[1] |
| Right ascension | 13h 18m 48.27669s[2] |
| Declination | −79° 58′ 33.6643″[2] |
| Apparent magnitude (V) | 6.33±0.01[3] |
| Characteristics | |
| Evolutionary stage | main sequence[2] |
| Spectral type | B9.5/A0 V[4] |
| U−B color index | −0.21[5] |
| B−V color index | −0.05[5] |
| Astrometry | |
| Proper motion (μ) | RA: −17.937 mas/yr[2] Dec.: −23.120 mas/yr[2] |
| Parallax (π) | 7.9122±0.0305 mas[2] |
| Distance | 412 ± 2 ly (126.4 ± 0.5 pc) |
| Absolute magnitude (MV) | +0.51[1] |
| Details | |
| Mass | 2.85±0.37[6] M☉ |
| Radius | 2.33[7] R☉ |
| Luminosity | 62.49[8] L☉ |
| Surface gravity (log g) | 4.14[9] cgs |
| Temperature | 10,950±330[6] K |
| Age | 244+57 −44[2] Myr |
| Other designations | |
| 45 G. Chamaeleontis[10], CD−79°519, CPD−79°723, GC 17972, HD 115088, HIP 64951, SAO 257026[11] | |
| Database references | |
| SIMBAD | data |
HD 115088, also known as HIP 64951, is a star located in the southern circumpolar constellation Chamaeleon. It has an apparent magnitude of 6.33,[3] placing it near the limit for naked eye visibility. Based on parallax measurements from the Gaia spacecraft, the object is estimated to be 412 light years distant.[2] At that distance, its brightness is diminished by 0.37 magnitudes due to interstellar dust.[12]
HD 115088 has a stellar classification of B9.5/A0 V[4] — intermediate between a B9.5 and A0 main sequence star. It has 2.85 times the mass of the Sun[6] and double the radius of the Sun.[7] It radiates 62.5 times the luminosity of the Sun[8] from its photosphere at an effective temperature of 10,950 K,[6] giving it a bluish-white hue. It is estimated to be 244 million years old, having completed 52.5% of its main sequence lifetime.[2]
