Beta Delphini
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Beta Delphini, also known as Beta Del, is a multiple star in the constellation Delphinus. As a practical joke, the astronomer Niccolò Cacciatore gave it the name Rotanev, which is a reversal of his Latinized family name, Venator. The star has five components; components A and B are a physical binary; C, D, and E are optical.
| Observation data Equinox J2000.0 (ICRS) |
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|---|---|
| Constellation | Delphinus |
| Right ascension | 20h 37m 32.944s/32.934s |
| Declination | +14° 35′ 42.33″42.28″ |
| Apparent magnitude (V) | 4.1/5.1 |
| Distance | 97±3 ly (29.9±0.8 pc) |
| Spectral type | F5IV/F2V |
| Other designations | |
| Observation data Equinox J2000.0 (ICRS) |
|
|---|---|
| Constellation | Delphinus |
| Right ascension | 20h 37m 33.7s/30.9s/25.3s |
| Declination | +14° 35′ 33″ +14° 36′ 17″ +14° 35′ 46″ |
| Apparent magnitude (V) | 13.1/11.0/unknown |
| Other designations | |
|
CCDM J20375+1436C/D/E; also, see designations for Beta Delphini A/B
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[edit] See also
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