LP Aquarii
Star in the constellation Aquarius
From Wikipedia, the free encyclopedia
LP Aquarii is a pulsating variable star in the constellation of Aquarius that varies between magnitudes 6.30 and 6.64.[3] The position of the star near the ecliptic means it is subject to lunar occultations.[11]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 42m 06.026s[2] |
| Declination | −05° 06′ 07.03″[2] |
| Apparent magnitude (V) | 6.30 - 6.64[3] |
| Characteristics | |
| Spectral type | M4III[4] |
| Variable type | Lb[5] |
| Astrometry | |
| Radial velocity (Rv) | −175.81[2] km/s |
| Proper motion (μ) | RA: +69.323 mas/yr[2] Dec.: −49.636 mas/yr[2] |
| Parallax (π) | 3.6849±0.1178 mas[2] |
| Distance | 890 ± 30 ly (271 ± 9 pc) |
| Absolute magnitude (MV) | −0.307[6] |
| Details | |
| Mass | 1.558[7] M☉ |
| Radius | 83+15 −11[8] R☉ |
| Luminosity | 1,011±66[8] L☉ |
| Surface gravity (log g) | 0.476[9] cgs |
| Temperature | 3,582+254 −278[8] K |
| Metallicity [Fe/H] | −0.045[7] dex |
| Other designations | |
| LP Aqr, BD−05°5843, HD 214983, HIP 112078, SAO 146251, CCDM J22421-0507A[10] | |
| Database references | |
| SIMBAD | data |
The star's variability was first detected in the Hipparcos satellite data, and it was given its variable star designation in 1999.[12]
