Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Mensa |
Right ascension | 05h 06m 09.2953s [1] |
Declination | −73° 02′ 15.6159″ [1] |
Apparent magnitude (V) | 6.26 ± 0.01 [2] |
Characteristics | |
Spectral type | A1 V [3] or A0 V [4] |
U−B color index | −0.01 [5] |
B−V color index | +0.01 [5] |
Astrometry | |
Radial velocity (Rv) | 8 ± 7.4 [6] km/s |
Proper motion (μ) |
RA: +17.783
[1]
mas/
yr Dec.: +63.090 [1] mas/ yr |
Parallax (π) | 7.742 ± 0.0276 mas [1] |
Distance | 421 ± 2
ly (129.2 ± 0.5 pc) |
Absolute magnitude (MV) | +0.7 |
Details | |
Mass | 2.31 ± 0.41 [7] M☉ |
Radius | 2.84 ± 0.35 [7] R☉ |
Luminosity | 49.2 [8] L☉ |
Surface gravity (log g) | 4 [9] cgs |
Temperature | 9,392 [10] K |
Rotational velocity (v sin i) | 124 ± 6 [10] km/s |
Age | 411 [11] Myr |
Other designations | |
Database references | |
SIMBAD | data |
HD 33875 (HR 1700) is a solitary star in the southern circumpolar constellation Mensa. With an apparent magnitude of 6.26, [2] it is barely visible to the naked eye under ideal conditions. The star is located at a distance of 421 [1] light years but is receding at a rate of 8 km/s. [6]
HD 33875 is an ordinary A-type main-sequence star with a stellar classification of either A1 V [3] or A0 V [4] depending on the source. At present it has 2.38 times the mass of the Sun [7] and 2.84 times the radius of the Sun. [7] It shines at 49.2 times the Sun's luminosity [8] from its photosphere at an effective temperature of 9,392 K, [10] which gives it a white glow. HD 33875 is a fast rotator, spinning rapidly with a projected rotational velocity of 124 km/s. [10]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Mensa |
Right ascension | 05h 06m 09.2953s [1] |
Declination | −73° 02′ 15.6159″ [1] |
Apparent magnitude (V) | 6.26 ± 0.01 [2] |
Characteristics | |
Spectral type | A1 V [3] or A0 V [4] |
U−B color index | −0.01 [5] |
B−V color index | +0.01 [5] |
Astrometry | |
Radial velocity (Rv) | 8 ± 7.4 [6] km/s |
Proper motion (μ) |
RA: +17.783
[1]
mas/
yr Dec.: +63.090 [1] mas/ yr |
Parallax (π) | 7.742 ± 0.0276 mas [1] |
Distance | 421 ± 2
ly (129.2 ± 0.5 pc) |
Absolute magnitude (MV) | +0.7 |
Details | |
Mass | 2.31 ± 0.41 [7] M☉ |
Radius | 2.84 ± 0.35 [7] R☉ |
Luminosity | 49.2 [8] L☉ |
Surface gravity (log g) | 4 [9] cgs |
Temperature | 9,392 [10] K |
Rotational velocity (v sin i) | 124 ± 6 [10] km/s |
Age | 411 [11] Myr |
Other designations | |
Database references | |
SIMBAD | data |
HD 33875 (HR 1700) is a solitary star in the southern circumpolar constellation Mensa. With an apparent magnitude of 6.26, [2] it is barely visible to the naked eye under ideal conditions. The star is located at a distance of 421 [1] light years but is receding at a rate of 8 km/s. [6]
HD 33875 is an ordinary A-type main-sequence star with a stellar classification of either A1 V [3] or A0 V [4] depending on the source. At present it has 2.38 times the mass of the Sun [7] and 2.84 times the radius of the Sun. [7] It shines at 49.2 times the Sun's luminosity [8] from its photosphere at an effective temperature of 9,392 K, [10] which gives it a white glow. HD 33875 is a fast rotator, spinning rapidly with a projected rotational velocity of 124 km/s. [10]