| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aries |
| Right ascension | 03h01m 54.14125s[1] |
| Declination | +26° 27′ 44.4746″[1] |
| Apparent magnitude (V) | 5.90[2] |
| Characteristics | |
| Evolutionary stage | main sequence[1] |
| Spectral type | kA2hA6mA7[3] |
| U−B color index | +0.12[2] |
| B−V color index | +0.141±0.006[4] |
| Astrometry | |
| Radial velocity (Rv) | −1.0[5] km/s |
| Proper motion (μ) | RA: −14.323[1] mas/yr Dec.: +5.160[1] mas/yr |
| Parallax (π) | 14.6587 ± 0.0844 mas[1] |
| Distance | 223 ± 1 ly (68.2 ± 0.4 pc) |
| Absolute magnitude (MV) | 1.87[4] |
| Details | |
| Mass | 1.9[1] M☉ |
| Radius | 2.0[1] R☉ |
| Luminosity | 16.1[1] L☉ |
| Surface gravity (log g) | 4.34[6] cgs |
| Temperature | 8,424[6] K |
| Metallicity [Fe/H] | −0.02[6] dex |
| Rotational velocity (v sin i) | 52[5] km/s |
| Age | 704[1] Myr |
| Other designations | |
49 Ari, NSV 1021, BD+25°477, HD 18769, HIP 14109, HR 905, SAO 75693[7] | |
| Database references | |
| SIMBAD | data |
49 Arietis is a single[8] star in the northern constellationofAries. 49 Arietis is the Flamsteed designation. It is visible to the naked eye as a faint, white hued star with an apparent visual magnitude of 5.90.[2] The star is located at a distance of about 223 light-years (68parsecs) distant from Earth based on parallax.
This object is classified as an Am star,[9] or non-magnetic chemically peculiar star of the CP1[10] class, which means the spectrum displays abnormal abundances of certain heavier elements. It has a stellar classification of kA2hA6mA7, which means it has the calcium K line of an A2 class star, the hydrogen lines of an A6 star, and the metal lines of an A7 star. 49 Arietis has a moderately high rate of spin, showing a projected rotational velocityof52 km/s, and is radiating 16 times the luminosity of the Sun from its photosphere at an effective temperatureof8,424 K.
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