Observation data Epoch J2000 Equinox J2000 |
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Constellation | Aquila |
Right ascension | 19h 42m 34.0s |
Declination | +11° 49' 36"' |
Apparent magnitude (V) | 5.28 |
Characteristics | |
Spectral type | F3V+ |
U−B color index | -0.04 |
B−V color index | 0.57 |
Astrometry | |
Radial velocity (Rv) | -21.6 km/s |
Proper motion (μ) | RA: 3.43 mas/yr Dec.: -10.49 mas/yr |
Parallax (π) | 4.34 ± 2.0 mas |
Distance | approx. 800 ly (approx. 200 pc) |
Absolute magnitude (MV) | 5.833 |
Details | |
Mass | 1.7 M☉ |
Radius | 1.4 R☉ |
Luminosity | 6 L☉ |
Temperature | 6,000–7,500 K |
Other designations | |
Database references | |
SIMBAD | data |
Database references | |
SIMBAD | data |
Data sources: | |
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
Chi Aquilae (χ Aql, χ Aquilae) is a double star in the constellation Aquila. It is approximately 750 light-years from Earth.
The more luminous component is a yellow G-type giant with an apparent magnitude of +5.6. It has a white A-type main sequence dwarf companion with an apparent magnitude of +6.8. The two stars are separated by 0.6 arcseconds and their combined apparent brightness is +5.28 magnitudes.
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