8 Aquarii (abbreviated 8 Aqr) is a blue-white

sub-giant A subgiant is a star that is brighter than a normal main-sequence star of the same spectral class, but not as bright as giant stars. The term subgiant is applied both to a particular spectral luminosity class and to a stage in the evolution ...

of the spectral class A4IV in the

constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The origins of the e ...

Aquarius. ''8 Aquarii'' is the Flamsteed designation. It is approximately 290 light-years away from Earth, based on

parallax Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight and is measured by the angle or semi-angle of inclination between those two lines. Due to foreshortening, nearby objects ...

. It is approximately 1.7 solar masses and about 3 times hotter than the Sun and thus allows lines of ionized metals with an abundance of metals.

References

External links

* Aquarius (constellation) Aquarii, 008 A-type subgiants 103640 199828 Durchmusterung objects {{subgiant-star-stub