Omicron Aquilae
Appearance
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aquila |
Right ascension | 19h 51m 01.64400s[1] |
Declination | +10° 24′ 56.5992″[1] |
Apparent magnitude (V) | 5.11[2] |
Characteristics | |
Spectral type | F8 V + M3 V[3] |
U−B color index | 0.07 |
B−V color index | 0.55[4] |
R−I color index | 0.29 |
Absolute magnitude (MV) | 3.71[5] |
Details | |
ο Aql A | |
Gyr | |
ο Aql C | |
Mass | 0.33[8] M☉ |
Database references | |
SIMBAD | data |
Omicron Aquilae (ο Aql, ο Aquilae) is the
) from Earth.The primary component, Omicron Aquilae A, is an
F-type star
.
In 1998, Omicron Aquilae was one of nine stars identified as experiencing a superflare. The first flare observed from Omicron Aquilae was in 1979, with a magnitude increase of 0.07 and a duration of less than five days. The second occurred in 1980, with a magnitude change of 0.09 and a duration of fifteen days. The energy released during the second flare is estimated as 9 × 1037 erg.[10]
There is a magnitude 12.67
optical companion that appears near the primary only through a chance alignment.[3]