 Location 85 Ceti (HD 16861) within the Aries constellation (pink) | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aries |
| Right ascension | 02h 42m 28.93647s[1] |
| Declination | +10° 44′ 30.2137″[1] |
| Apparent magnitude (V) | 6.30[2] |
| Characteristics | |
| Spectral type | A2 V[3] |
| U−Bcolor index | +0.06[2] |
| B−Vcolor index | +0.06[2] |
| R−Icolor index | 0.02 |
| Astrometry | |
| Radial velocity (Rv) | +6.1[4] km/s |
| Proper motion (μ) | RA: –22.88[1]mas/yr Dec.: –22.95[1]mas/yr |
| Parallax (π) | 7.87±1.05 mas[1] |
| Distance | approx. 410 ly (approx. 130 pc) |
| Details | |
| Mass | 2.38 ± 0.15[5] M☉ |
| Luminosity | 48[5] L☉ |
| Temperature | 8,810[5] K |
| Rotational velocity (v sin i) | 18[6] km/s |
| Other designations | |
| BD+10° 360,HD 16861,HIP 12647,HR 797,NSV 899,SAO 93067.[7] | |
| Database references | |
| SIMBAD | data |
85 Ceti is an olderFlamsteed designation[8] for astar that is now within the borders of the northernconstellation ofAries,[9] the ram. In the present day it is known by star catalogue designations such asHD 16861 andHR 797.[7] It has anapparent visual magnitude of 6.30[2] and is approximately 410light-years (130parsecs) distant from the Earth. This is anA-type main sequence star with astellar classification of A2 V.[3] It has 2.4 times the mass of the Sun and shines with 48 times the Sun's luminosity. This energy is being radiated into outer space from the star'souter atmosphere at aneffective temperature of 8,810 K.[5] This heat gives it the white-hued glow of anA-type star.[10]
