Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
---|---|
Constellation | Equuleus |
Right ascension | 21h 10m 31.31996s [1] |
Declination | 10° 02′ 56.1180″ [1] |
Apparent magnitude (V) | 6.07 [2] |
Characteristics | |
Evolutionary stage | main sequence [3] |
Spectral type | A2 Vs [3] (A1 Si Sr Cr) [4] |
U−B color index | +0.04 [2] |
B−V color index | +0.02 [2] |
Astrometry | |
Radial velocity (Rv) | +6.9 [5] km/s |
Proper motion (μ) |
RA: –2.696
[1]
mas/
yr Dec.: +15.802 [1] mas/ yr |
Parallax (π) | 8.5862 ± 0.1086 mas [1] |
Distance | 380 ± 5
ly (116 ± 1 pc) |
Absolute magnitude (MV) | +0.236 [6] |
Details | |
Mass | 2.59±0.14 [3] M☉ |
Radius | 1.7 [7] R☉ |
Luminosity | 70.6+19.4 −15.2 [3] L☉ |
Temperature | 9,078+169 −165 [3] K |
Rotational velocity (v sin i) | 65 [3] km/s |
Age | 970 [6] Myr |
Other designations | |
Database references | |
SIMBAD | data |
6 Equulei is a probable (95% chance) astrometric binary [9] star system in the northern constellation of Equuleus, located 380 light years from the Sun. It is barely visible to the naked eye as a dim, white-hued star with an apparent visual magnitude of 6.07. [2] The system is moving further away from the Earth with a heliocentric radial velocity of +6.9 km/s. [5] It forms a wide optical double with γ Equulei, at an angular separation of 336 arcseconds in 2011. [10]
The visible component is an Ap star [3] with a stellar classification of A2Vs, [3] matching the evolutionary state of an A-type main sequence star while displaying "sharp" absorption lines. It is an estimated 970 [6] million years old with a projected rotational velocity of 65 km/s. [3] The star has 2.6 [3] times the mass of the Sun and around 1.7 [7] times the Sun's radius. It is radiating 71 [3] times the luminosity of the Sun from its photosphere at an effective temperature of 9,078 K. [3]
Observation data Epoch J2000.0 Equinox J2000.0 ( ICRS) | |
---|---|
Constellation | Equuleus |
Right ascension | 21h 10m 31.31996s [1] |
Declination | 10° 02′ 56.1180″ [1] |
Apparent magnitude (V) | 6.07 [2] |
Characteristics | |
Evolutionary stage | main sequence [3] |
Spectral type | A2 Vs [3] (A1 Si Sr Cr) [4] |
U−B color index | +0.04 [2] |
B−V color index | +0.02 [2] |
Astrometry | |
Radial velocity (Rv) | +6.9 [5] km/s |
Proper motion (μ) |
RA: –2.696
[1]
mas/
yr Dec.: +15.802 [1] mas/ yr |
Parallax (π) | 8.5862 ± 0.1086 mas [1] |
Distance | 380 ± 5
ly (116 ± 1 pc) |
Absolute magnitude (MV) | +0.236 [6] |
Details | |
Mass | 2.59±0.14 [3] M☉ |
Radius | 1.7 [7] R☉ |
Luminosity | 70.6+19.4 −15.2 [3] L☉ |
Temperature | 9,078+169 −165 [3] K |
Rotational velocity (v sin i) | 65 [3] km/s |
Age | 970 [6] Myr |
Other designations | |
Database references | |
SIMBAD | data |
6 Equulei is a probable (95% chance) astrometric binary [9] star system in the northern constellation of Equuleus, located 380 light years from the Sun. It is barely visible to the naked eye as a dim, white-hued star with an apparent visual magnitude of 6.07. [2] The system is moving further away from the Earth with a heliocentric radial velocity of +6.9 km/s. [5] It forms a wide optical double with γ Equulei, at an angular separation of 336 arcseconds in 2011. [10]
The visible component is an Ap star [3] with a stellar classification of A2Vs, [3] matching the evolutionary state of an A-type main sequence star while displaying "sharp" absorption lines. It is an estimated 970 [6] million years old with a projected rotational velocity of 65 km/s. [3] The star has 2.6 [3] times the mass of the Sun and around 1.7 [7] times the Sun's radius. It is radiating 71 [3] times the luminosity of the Sun from its photosphere at an effective temperature of 9,078 K. [3]