Alshain - β Aquilae (beta Aquilae)
Alshain, also designated as β Aquilae (beta Aquilae), is a variable and multiple sub-giant star in the constellation of Aquila.
Alshain visual magnitude is 3.71. Because of its moderate brightness, Alshain should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.
The table below summarizes the key facts about Alshain:
Celestial coordinates and finder chart of Alshain
Alshain is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Alshain are provided in the following table:
The simplified sky map below shows the position of Alshain in the sky:
Visibility of Alshain from your location
Digitized Sky Survey image of Alshain
The image below is a photograph of Alshain from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of Alshain is 0.048 arcsec per year in Right Ascension and -0.482 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of Alshain from the Sun and relative movement
Alshain is distant 44.69 light years from the Sun and it is moving towards the Sun at the speed of 40 kilometers per second.
Spectral properties of Alshain
Alshain belongs to spectral class G8 and has a luminosity class of IV corresponding to a sub-giant star.
The red dot in the diagram below shows where Alshain is situated in the Hertzsprung–Russell diagram.
Alshain star system properties
Alshain is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the Alshain double sysyem: