45 Aquarii

45 Aquarii is a star in the zodiac constellation of Aquarius. 45 Aquarii is its Flamsteed designation. Its apparent magnitude is 5.96.

45 Aquarii

Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Aquarius
Right ascension	22^h 19^m 00.74091^s[1]
Declination	−13° 18′ 17.9706″[1]
Apparent magnitude (V)	5.96[2]
Characteristics
Spectral type	K0 III[3]
B−V color index	1.075±0.004[2]
Astrometry
Radial velocity (Rv)	+30.0±2.9[2] km/s
Proper motion (μ)	RA: +73.313[1] mas/yr Dec.: −9.010[1] mas/yr
Parallax (π)	9.8225 ± 0.0992[1] mas
Distance	332 ± 3 ly (102 ± 1 pc)
Absolute magnitude (MV)	0.69[2]
Details
Radius	10.42+0.38 −1.46[1] R☉
Luminosity	49.8±0.6[1] L☉
Temperature	4750±374[1] K
Other designations
45 Aqr, BD−14°6255, GC 31199, HD 211676, HIP 110179, HR 8508, SAO 164996[4]
Database references
SIMBAD	data

References

1. Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
2. Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015.
3. Houk, Nancy; Smith-Moore, M. (1978), Michigan catalogue of two-dimensional spectral types for the HD stars, 4, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1988mcts.book.....H.
4. "45 Aqr". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-16.