56 Aquilae
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 54m 08.27579s[1] |
| Declination | –08° 34′ 27.1575″[1] |
| Apparent magnitude (V) | 5.79[2] |
| Characteristics | |
| Spectral type | K5 III[3] |
| U−B color index | +2.00[2] |
| B−V color index | +1.64[2] |
| Astrometry | |
| Radial velocity (Rv) | –49.5[4] km/s |
| Proper motion (μ) | RA: +5.36[1] mas/yr Dec.: –18.81[1] mas/yr |
| Parallax (π) | 8.27 ± 1.06[1] mas |
| Distance | approx. 390 ly (approx. 120 pc) |
| Other designations | |
56 Aquilae (abbreviated 56 Aqr) is a star in the equatorial constellation of Aquila. 56 Aquilae is its Flamsteed designation. Its apparent magnitude is 5.76, meaning it would be barely visible to the naked eye, under ideal conditions. It was discovered by nineteenth Century Astronomer John Herschel.
56 Aquilae is a double star,[6] but it does not appear to be a binary star system.[3] It is one of the double stars profiled in Admiral William Henry Smyth's 1864 work, Sidereal Chromatics.
References
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External links
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