51 Aquarii
| Observation data Epoch J2000 Equinox J2000 | ||
|---|---|---|
| Constellation | Aquarius | |
| Right ascension | 22h 24m 06.88433s[1] | |
| Declination | –04° 50′ 13.2692″[1] | |
| Apparent magnitude (V) | 5.78 (6.45 + 6.63)[2] | |
| Characteristics | ||
| Spectral type | A0 V[3] + A0[2] | |
| U−B color index | –0.11[4] | |
| B−V color index | –0.04[4] | |
Argument of periastron (ω)(secondary) | 296.9±3.0° | |
| Details | ||
| 51 Aqr A | ||
Rotational velocity (v sin i) | 91[7] km/s | |
| Database references | ||
| SIMBAD | data | |
61 Aquarii is a
apparent visual magnitude of 5.78.[4] The system is moving further from the Earth with a heliocentric radial velocity of +6 km/s.[5]
The dual nature of this system was discovered by S. W. Burnham in 1873 with a 6 inches (15 cm)
projected rotational velocity of 91 km/s.[10] The secondary component has a matching class of A0 with a visual magnitude of 6.63.[2]
It has an effective temperature of 10,238 K.
References
- ^ S2CID 18759600.
- ^ S2CID 14878976.
- ^ doi:10.1086/110819.
- ^ Bibcode:1978A&AS...34....1N.
- ^ Bibcode:1953GCRV..C......0W.
- ^ S2CID 30737411.
- ^ S2CID 55586789.
- ^ "* 51 Aqr". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2012-07-16.
- S2CID 120821801
- S2CID 18475298.
External links
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