8 Aquarii

From Wikipedia, the free encyclopedia
Jump to: navigation, search
8 Aquarii
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 20h 59m 54.82678s
Declination −13° 03′ 05.8699″
Apparent magnitude (V) 6.617
Spectral type A4IV
U−B color index 0.11
B−V color index 0.2
Variable type unknown
Radial velocity (Rv) ? km/s
Proper motion (μ) RA: -27.46 mas/yr
Dec.: 1.89 mas/yr
Parallax (π) 11.40 ± 0.85 mas
Distance 290 ± 20 ly
(88 ± 7 pc)
Absolute magnitude (MV) 6.775
Mass 1.7±.1 M
Temperature ~8000-9000 K
Age ~3 × 109 years
Other designations
8 Aquarii, HD 199828, SAO 164046, HIP 103640

8 Aquarii is a blue-white sub-giant of the spectral class A4IV in the constellation Aquarius with an absolute magnitude of 6.775. It is approximately 320 light-years away from Earth. It is approximately 1.7 solar masses and about 3 times hotter than our Sun and thus allows lines of ionized metals with an abundance of metals.

Since 8 Aquarii is a metal enriched, blue-white sub-giant it is highly plausible that it has orbiting planets and possible life-bearing planets.

External links[edit]