Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Triangulum |
Right ascension | 02h 11m 25.02s [1] |
Declination | +31° 31′ 35.02″ [1] |
Apparent magnitude (V) | 6.23±0.01 [2] |
Characteristics | |
Spectral type | A0 Vm [3] |
U−B color index | +0.11 [4] |
B−V color index | +0.12 [4] |
Astrometry | |
Radial velocity (Rv) | 7.7±1.5 [5] km/s |
Proper motion (μ) |
RA: +35.429
[1]
mas/
yr Dec.: −10.785 [1] mas/ yr |
Parallax (π) | 8.1779 ± 0.0862 mas [1] |
Distance | 399 ± 4
ly (122 ± 1 pc) |
Absolute magnitude (MV) | +1.07 [6] |
Details [7] | |
Mass | 2.22±0.41 M☉ |
Radius | 2.96±0.36 R☉ |
Luminosity | 48.2±1.2 L☉ |
Surface gravity (log g) | 3.84±0.31 cgs |
Temperature | 8,836 K |
Metallicity [Fe/H] | −0.17 [8] dex |
Rotational velocity (v sin i) | 15±10 [9] km/s |
Other designations | |
Database references | |
SIMBAD | data |
5 Trianguli is a solitary star located in the northern constellation Triangulum. With an apparent magnitude of 6.23, [2] it’s barely visible to the naked eye under ideal conditions. The star is located 399 light years [1] away from the Solar System, but is drifting away with a radial velocity of 7.7 km/s. [5]
5 Trianguli has a classification of A0 Vm, [3] which states it’s an A-type main-sequence star with unusually strong metallic lines. It has 2.22 times the mass of the Sun and 2.96 times the radius of the Sun. 5 Trianguli radiates at 48 solar luminosities from its photosphere at an effective temperature of 8,836 kelvin, which gives it a white-hue of an A-type star. [7] It has a low projected rotational velocity of 15 km/s, common for Am stars. [9]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Triangulum |
Right ascension | 02h 11m 25.02s [1] |
Declination | +31° 31′ 35.02″ [1] |
Apparent magnitude (V) | 6.23±0.01 [2] |
Characteristics | |
Spectral type | A0 Vm [3] |
U−B color index | +0.11 [4] |
B−V color index | +0.12 [4] |
Astrometry | |
Radial velocity (Rv) | 7.7±1.5 [5] km/s |
Proper motion (μ) |
RA: +35.429
[1]
mas/
yr Dec.: −10.785 [1] mas/ yr |
Parallax (π) | 8.1779 ± 0.0862 mas [1] |
Distance | 399 ± 4
ly (122 ± 1 pc) |
Absolute magnitude (MV) | +1.07 [6] |
Details [7] | |
Mass | 2.22±0.41 M☉ |
Radius | 2.96±0.36 R☉ |
Luminosity | 48.2±1.2 L☉ |
Surface gravity (log g) | 3.84±0.31 cgs |
Temperature | 8,836 K |
Metallicity [Fe/H] | −0.17 [8] dex |
Rotational velocity (v sin i) | 15±10 [9] km/s |
Other designations | |
Database references | |
SIMBAD | data |
5 Trianguli is a solitary star located in the northern constellation Triangulum. With an apparent magnitude of 6.23, [2] it’s barely visible to the naked eye under ideal conditions. The star is located 399 light years [1] away from the Solar System, but is drifting away with a radial velocity of 7.7 km/s. [5]
5 Trianguli has a classification of A0 Vm, [3] which states it’s an A-type main-sequence star with unusually strong metallic lines. It has 2.22 times the mass of the Sun and 2.96 times the radius of the Sun. 5 Trianguli radiates at 48 solar luminosities from its photosphere at an effective temperature of 8,836 kelvin, which gives it a white-hue of an A-type star. [7] It has a low projected rotational velocity of 15 km/s, common for Am stars. [9]