DV Aquarii
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Aquarius |
| Right ascension | 20h 58m 41.8401s |
| Declination | −14° 28′ 59.26″ |
| Apparent magnitude (V) | 5.89 - 6.25[1] |
| Characteristics | |
| Spectral type | A9V |
| U−B color index | 0.11 |
| B−V color index | 0.23 |
| Variable type | Beta Lyrae variable |
| Astrometry | |
| Radial velocity (Rv) | 10.30 ± 7.4 km/s |
| Proper motion (μ) | RA: -55.29 ± 0.44 mas/yr Dec.: -19.11 ± 0.33 mas/yr |
| Parallax (π) | 11.47 ± 0.45 mas |
| Distance | 280 ± 10 ly (87 ± 3 pc) |
| Details | |
| Mass | 3.1 M☉ |
| Radius | 2.1 R☉ |
| Luminosity | 40 L☉ |
| Temperature | 7,500–10,000 K |
| Orbit | |
| Companion | DV Aquarii B |
| Period (P) | 0.0043135687885[citation needed] yr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
|
DV Aquarii is a Beta Lyrae type eclipsing binary. It varies between magnitudes 5.89 and 6.25 over 1.6 days.[1]
References
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