Epsilon Volantis
|
Triple star Epsilon Volantis |
||
|---|---|---|
| Observation data epoch : J2000.0 |
||
| AladinLite | ||
| Constellation | Flying fish | |
| Astrometry | ||
| Radial velocity | (+9.6 ± 0.9) km / s | |
| parallax | (5.08 ± 0.56) mas | |
| distance | (642 ± 71) ly ((197 ± 22) pc ) |
|
| Individual data | ||
| Names | Aa , Ab , B | |
| Observation data: | ||
| Right ascension | Aa | 08 h 07 m 55.8 s |
| From | ||
| B. | ||
| declination | Aa | −68 ° 37 ′ 01 ″ |
| From | ||
| B. | ||
|
Apparent brightness |
Aa | +4.35 m |
| From | m | |
| B. | approx. 7.3 m | |
| Typing: | ||
| Spectral class | Aa | B6 IV |
| From | ||
| B. | ||
| Designations and catalog entries | ||
| Bayer-Bez. | ε Volantis | |
| Bright Star Cat. | HR 3223 | |
| HD catalog | HD 68520 | |
| SAO catalog | SAO 250128 | |
| Tycho catalog | TYC 9193-3090-1 | |
| Hipparcos catalog | HIP 39794 | |
| WDS catalog | WDS 08079-6837 | |
| Other names |
CPD -68 ° 736 CCDM J08079-6837 |
|
Epsilon Volantis (ε Vol / ε Volantis) is a triple star system in the constellation of the flying fish . The system is about 642 light years from Earth. At Epsilon Volantis, two 4.5 mag bright stars and one only 8 mag faint star orbit each other at an apparent distance of 6.1 arc seconds . The two stars of the component Epsilon Volantis A are a spectroscopic binary star and, together with the companion Epsilon Volantis B, form a system with an orbital period of about 14.17 days. Epsilon Volantis A, is a blue and white subgiant B-type.
literature
- Sanford RF: The orbit of the spectroscopic binary epsilon Volantis. Lick Observatory Bulletin, vol. 8, pp.127-130, published 1913
- Medici, A .; Hubrig, S .: Triple System epsilon Vol and Quadruple System eta Mus: the Mass Ratio in Close Binary Systems Information Bulletin on Variable Stars, 4827, 1. published 2000