Iota Aquarii: Difference between revisions

Iota Aquarii
Observation data; Epoch J2000 Equinox J2000
Constellation	Aquarius
Right ascension	22h 06m 26.2297s
Declination	–13° 52′ 10.845″
Apparent magnitude (V)	4.281
Characteristics
Spectral type	B8V
U−B color index	-0.29
B−V color index	-0.07
Astrometry
Radial velocity (Rv)	–10 km/s
Proper motion (μ)	RA: 40.45 mas/yr ; Dec.: –57.16 mas/yr
Parallax (π)	18.9 ± 0.95 mas
Distance	173 ± 9 ly ; (53 ± 3 pc)
Absolute magnitude (MV)	3.219
Details
Radius	2.7 R☉
Temperature	11,284 ± 284 K
Age	30–60 Myr
Other designations
	33 Aquarii, HD 209819, BD-14° 6209, FK5 828, HIP 109139, HR 8418, SAO 164861.
Database references
SIMBAD	data

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Revision as of 16:47, 21 March 2012

Iota Aquarii (ι Aqr, ι Aquarii) is a star in the constellation Aquarius.

Iota Aquarii is a blue-white B-type subgiant with an apparent magnitude of +4.29. It is approximately 173 light years from Earth.

^ ^a ^b Underhill, A. B.; et al. (1979), "Effective temperatures, angular diameters, distances and linear radii for 160 O and B stars", Monthly Notices of the Royal Astronomical Society, 189: 601–605, Bibcode:1979MNRAS.189..601U {{citation}}: Unknown parameter |month= ignored (help)
^ Ehrenreich, D.; et al. (2010), "Deep infrared imaging of close companions to austral A- and F-type stars", Astronomy and Astrophysics, 523: A73, Bibcode:2010A&A...523A..73E, doi:10.1051/0004-6361/201014763 {{citation}}: |first4= missing |last4= (help); Unknown parameter |month= ignored (help)

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 [[Category:Bayer objects|Aquarii, Iota]]
 [[Category:Flamsteed objects|Aquarii, 33]]
-[[Category:Aquarius constellation]]
+[[Category:Aquarius (constellation)]]
 [[Category:B-type subgiants]]