HD 182475
Star in the constellation Aquila
From Wikipedia, the free encyclopedia
HD 182475 is a Delta Scuti variable[6] star in the equatorial constellation of Aquila. Its apparent magnitude is 6.5, making it barely visible to the naked eye under ideal observing conditions.[4]
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Aquila[2] |
| Right ascension | 19h 25m 01.53339s[3] |
| Declination | −04° 53′ 04.3738″[3] |
| Apparent magnitude (V) | 6.51[4] |
| Characteristics | |
| Spectral type | A9V[5] |
| U−B color index | +0.09[4] |
| B−V color index | +0.33[4] |
| Variable type | δ Sct[6] |
| Astrometry | |
| Proper motion (μ) | RA: 36.65[3] mas/yr Dec.: 2.67[3] mas/yr |
| Parallax (π) | 9.25±1.32 mas[3] |
| Distance | approx. 350 ly (approx. 110 pc) |
| Absolute magnitude (MV) | +1.38[2] |
| Details | |
| Luminosity | 23[7] L☉ |
| Temperature | 6,907[7] K |
| Rotational velocity (v sin i) | 141[5] km/s |
| Other designations | |
| V1691 Aql, BD−05°4964, HD 180555, HIP 95453, HR 7366, SAO 143373 | |
| Database references | |
| SIMBAD | data |
Gerald Hildebrandt discovered the star is a variable star in 1991, and reported the discovery in 1992.[8] It was given its variable star designation, V1691 Aquarii, in 2006.[9]
