Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aries |
Right ascension | 03h 07m 25.67315s [1] |
Declination | +17° 52′ 47.9696″ [1] |
Apparent magnitude (V) | 6.10 [2] |
Characteristics | |
Spectral type | B1.5 V [3] |
U−B color index | [4] 0.80 [2] |
B−V color index | −0.12 [2] |
Variable type | β Cep [4] |
Astrometry | |
Radial velocity (Rv) | +21.2 [5] km/s |
Proper motion (μ) |
RA: −23.733
[1]
mas/
yr Dec.: +8.080 [1] mas/ yr |
Parallax (π) | 3.1874 ± 0.0630 mas [1] |
Distance | 1,020 ± 20
ly (314 ± 6 pc) |
Details | |
Mass | 7.5±0.2 [6] M☉ |
Radius | 4.2 [1] R☉ |
Luminosity | 1,962 [1] L☉ |
Surface gravity (log g) | 3.99 [1] cgs |
Temperature | 19,065 [1] K |
Metallicity [Fe/H] | −0.18 [1] dex |
Rotational velocity (v sin i) | 5 [7] km/s |
Other designations | |
Database references | |
SIMBAD | data |
53 Arietis (abbreviated 53 Ari) is a variable star in the northern constellation of Aries. 53 Arietis is the Flamsteed designation; it also bears the variable star designation UW Arietis. It is a B-type main sequence star with a stellar classification of B1.5 V [3] and mean apparent magnitude of 6.10, [2] which is near the lower limit for naked eye visibility. Based upon an annual parallax shift of 3.2 mas, the estimated distance to this star is roughly 1,020 light-years (314 parsecs).
53 Arietis is a Beta Cephei variable. [4] It is a runaway star with a peculiar velocity of 48.1 km/s relative to its neighbors. [6] The star was ejected from the Orion nebula some 4–5 million years ago, possibly when an orbiting companion exploded as a supernova. [9]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aries |
Right ascension | 03h 07m 25.67315s [1] |
Declination | +17° 52′ 47.9696″ [1] |
Apparent magnitude (V) | 6.10 [2] |
Characteristics | |
Spectral type | B1.5 V [3] |
U−B color index | [4] 0.80 [2] |
B−V color index | −0.12 [2] |
Variable type | β Cep [4] |
Astrometry | |
Radial velocity (Rv) | +21.2 [5] km/s |
Proper motion (μ) |
RA: −23.733
[1]
mas/
yr Dec.: +8.080 [1] mas/ yr |
Parallax (π) | 3.1874 ± 0.0630 mas [1] |
Distance | 1,020 ± 20
ly (314 ± 6 pc) |
Details | |
Mass | 7.5±0.2 [6] M☉ |
Radius | 4.2 [1] R☉ |
Luminosity | 1,962 [1] L☉ |
Surface gravity (log g) | 3.99 [1] cgs |
Temperature | 19,065 [1] K |
Metallicity [Fe/H] | −0.18 [1] dex |
Rotational velocity (v sin i) | 5 [7] km/s |
Other designations | |
Database references | |
SIMBAD | data |
53 Arietis (abbreviated 53 Ari) is a variable star in the northern constellation of Aries. 53 Arietis is the Flamsteed designation; it also bears the variable star designation UW Arietis. It is a B-type main sequence star with a stellar classification of B1.5 V [3] and mean apparent magnitude of 6.10, [2] which is near the lower limit for naked eye visibility. Based upon an annual parallax shift of 3.2 mas, the estimated distance to this star is roughly 1,020 light-years (314 parsecs).
53 Arietis is a Beta Cephei variable. [4] It is a runaway star with a peculiar velocity of 48.1 km/s relative to its neighbors. [6] The star was ejected from the Orion nebula some 4–5 million years ago, possibly when an orbiting companion exploded as a supernova. [9]