Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Serpens |
Right ascension | 17h 20m 49.66149s [1] |
Declination | −12° 50′ 48.7533″ [1] |
Apparent magnitude (V) | 4.32 [2] |
Characteristics | |
Spectral type | A2V [3] |
U−B color index | +0.04 [4] |
B−V color index | +0.03 [4] |
Astrometry | |
Radial velocity (Rv) | +4.80 [5] km/s |
Proper motion (μ) |
RA: +43.40
[1]
mas/
yr Dec.: +2.61 [1] mas/ yr |
Parallax (π) | 16.05 ± 0.26 mas [1] |
Distance | 203 ± 3
ly (62 ± 1 pc) |
Absolute magnitude (MV) | 0.35 [2] |
Details | |
Mass | 2.64 [6] M☉ |
Radius | 3.0 [7] R☉ |
Luminosity | 76 [6] L☉ |
Surface gravity (log g) | 3.95 [8] cgs |
Temperature | 9,120 [6] K |
Metallicity [Fe/H] | 0.00 [9] dex |
Rotational velocity (v sin i) | 123 [6] km/s |
Age | 350 [10] Myr |
Other designations | |
Database references | |
SIMBAD | data |
ν Serpentis, Latinized as Nu Serpentis, is a solitary [10] star in the Serpens Cauda section of the equatorial constellation of Serpens. It is a white-hued star that is faintly visible to the naked eye with an apparent visual magnitude of 4.32. [2] Based upon an annual parallax shift of 16.05 mas as seen from the Sun, [1] it is about 203 light years from the Sun. The star is drifting further away with a radial velocity of +5 km/s. [5]
This is an A-type main-sequence star with a stellar classification of A2V, [3] and is generating energy through hydrogen fusion at its core. It is 350 [10] million years old with a high rate of spin, showing a projected rotational velocity of 123 km/s. [6] The star has 2.64 [6] times the mass of the Sun and 3.0 [7] times the Sun's radius. It is radiating 76 times the Sun's luminosity from its photosphere at an effective temperature of 9,120 K. [6] Nu Serpentis has an optical companion, a magnitude +9.4 star at an angular separation of 46 arcseconds. [12]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Serpens |
Right ascension | 17h 20m 49.66149s [1] |
Declination | −12° 50′ 48.7533″ [1] |
Apparent magnitude (V) | 4.32 [2] |
Characteristics | |
Spectral type | A2V [3] |
U−B color index | +0.04 [4] |
B−V color index | +0.03 [4] |
Astrometry | |
Radial velocity (Rv) | +4.80 [5] km/s |
Proper motion (μ) |
RA: +43.40
[1]
mas/
yr Dec.: +2.61 [1] mas/ yr |
Parallax (π) | 16.05 ± 0.26 mas [1] |
Distance | 203 ± 3
ly (62 ± 1 pc) |
Absolute magnitude (MV) | 0.35 [2] |
Details | |
Mass | 2.64 [6] M☉ |
Radius | 3.0 [7] R☉ |
Luminosity | 76 [6] L☉ |
Surface gravity (log g) | 3.95 [8] cgs |
Temperature | 9,120 [6] K |
Metallicity [Fe/H] | 0.00 [9] dex |
Rotational velocity (v sin i) | 123 [6] km/s |
Age | 350 [10] Myr |
Other designations | |
Database references | |
SIMBAD | data |
ν Serpentis, Latinized as Nu Serpentis, is a solitary [10] star in the Serpens Cauda section of the equatorial constellation of Serpens. It is a white-hued star that is faintly visible to the naked eye with an apparent visual magnitude of 4.32. [2] Based upon an annual parallax shift of 16.05 mas as seen from the Sun, [1] it is about 203 light years from the Sun. The star is drifting further away with a radial velocity of +5 km/s. [5]
This is an A-type main-sequence star with a stellar classification of A2V, [3] and is generating energy through hydrogen fusion at its core. It is 350 [10] million years old with a high rate of spin, showing a projected rotational velocity of 123 km/s. [6] The star has 2.64 [6] times the mass of the Sun and 3.0 [7] times the Sun's radius. It is radiating 76 times the Sun's luminosity from its photosphere at an effective temperature of 9,120 K. [6] Nu Serpentis has an optical companion, a magnitude +9.4 star at an angular separation of 46 arcseconds. [12]