Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aries |
Right ascension | 02h 30m 38.41727s [2] |
Declination | +19° 51′ 19.0917″ [2] |
Apparent magnitude (V) | 6.10 - 6.15 [3] |
Characteristics | |
Spectral type | A9 V [4] |
U−B color index | +0.102 [5] |
B−V color index | +0.248 [5] |
Variable type | Delta Scuti variable [3] |
Astrometry | |
Radial velocity (Rv) | +15.0 [6] km/s |
Proper motion (μ) |
RA: +79.814
[2]
mas/
yr Dec.: −34.746 [2] mas/ yr |
Parallax (π) | 13.7810 ± 0.0831 mas [2] |
Distance | 237 ± 1
ly (72.6 ± 0.4 pc) |
Absolute magnitude (MV) | 1.89 [7] |
Details | |
Mass | 1.74 [8] M☉ |
Radius | 2.32+0.11 −0.12 [2] R☉ |
Luminosity | 15 [7] L☉ |
Surface gravity (log g) | 3.84 [7] cgs |
Temperature | 7,430 [7] K |
Rotational velocity (v sin i) | 186 [9] km/s |
Age | 1.075 [8] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
26 Arietis is a variable star in the northern constellation of Aries. 26 Arietis is the Flamsteed designation; it also bears the variable star designation UU Arietis. The apparent visual magnitude of this star is 6.14, [5] which, according to the Bortle Dark-Sky Scale, is within the naked eye visibility limit in dark rural skies. The annual parallax shift of 13.78 mas [2] is equivalent to a distance of approximately 215 light-years (66 parsecs) from Earth. The star is receding from the Earth with a heliocentric radial velocity of +15 km/s. [6]
This is an A-type main sequence star with a stellar classification of A9 V. [4] It is a Delta Scuti variable [7] with a variability period of 0.0676 days and an amplitude of 0.010 in magnitude. [11] The star is around a billion years old with 1.74 [8] times the mass of the Sun and 2.32 [2] times the Sun's radius. The star is radiating 15 times the luminosity of the Sun from its photosphere at an effective temperature of 7,430 K. [7]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aries |
Right ascension | 02h 30m 38.41727s [2] |
Declination | +19° 51′ 19.0917″ [2] |
Apparent magnitude (V) | 6.10 - 6.15 [3] |
Characteristics | |
Spectral type | A9 V [4] |
U−B color index | +0.102 [5] |
B−V color index | +0.248 [5] |
Variable type | Delta Scuti variable [3] |
Astrometry | |
Radial velocity (Rv) | +15.0 [6] km/s |
Proper motion (μ) |
RA: +79.814
[2]
mas/
yr Dec.: −34.746 [2] mas/ yr |
Parallax (π) | 13.7810 ± 0.0831 mas [2] |
Distance | 237 ± 1
ly (72.6 ± 0.4 pc) |
Absolute magnitude (MV) | 1.89 [7] |
Details | |
Mass | 1.74 [8] M☉ |
Radius | 2.32+0.11 −0.12 [2] R☉ |
Luminosity | 15 [7] L☉ |
Surface gravity (log g) | 3.84 [7] cgs |
Temperature | 7,430 [7] K |
Rotational velocity (v sin i) | 186 [9] km/s |
Age | 1.075 [8] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
26 Arietis is a variable star in the northern constellation of Aries. 26 Arietis is the Flamsteed designation; it also bears the variable star designation UU Arietis. The apparent visual magnitude of this star is 6.14, [5] which, according to the Bortle Dark-Sky Scale, is within the naked eye visibility limit in dark rural skies. The annual parallax shift of 13.78 mas [2] is equivalent to a distance of approximately 215 light-years (66 parsecs) from Earth. The star is receding from the Earth with a heliocentric radial velocity of +15 km/s. [6]
This is an A-type main sequence star with a stellar classification of A9 V. [4] It is a Delta Scuti variable [7] with a variability period of 0.0676 days and an amplitude of 0.010 in magnitude. [11] The star is around a billion years old with 1.74 [8] times the mass of the Sun and 2.32 [2] times the Sun's radius. The star is radiating 15 times the luminosity of the Sun from its photosphere at an effective temperature of 7,430 K. [7]