Sadalmelik - α Aquarii (alpha Aquarii)
Sadalmelik, also designated as α Aquarii (alpha Aquarii), is a double supergiant star in the constellation of Aquarius.
Sadalmelik visual magnitude is 2.96. Thanks to its high brightness, Sadalmelik is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.
The table below summarizes the key facts about Sadalmelik:
Celestial coordinates and finder chart of Sadalmelik
Sadalmelik 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 Sadalmelik are provided in the following table:
The simplified sky map below shows the position of Sadalmelik in the sky:
Visibility of Sadalmelik from your location
Digitized Sky Survey image of Sadalmelik
The image below is a photograph of Sadalmelik 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 Sadalmelik is 0.02 arcsec per year in Right Ascension and -0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of Sadalmelik from the Sun and relative movement
Sadalmelik is distant 758.14 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.
Spectral properties of Sadalmelik
Sadalmelik belongs to spectral class G2 and has a luminosity class of I corresponding to a supergiant star.
The red dot in the diagram below shows where Sadalmelik is situated in the Hertzsprung–Russell diagram.
Sadalmelik star system properties
Sadalmelik 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 Sadalmelik double sysyem: