Grumium - ξ Draconis (xi Draconis)
Grumium, also designated as ξ Draconis (xi Draconis), is a double giant star in the constellation of Draco.
Grumium visual magnitude is 3.75. Because of its moderate brightness, Grumium 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 Grumium:
Celestial coordinates and finder chart of Grumium
Grumium is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Grumium are provided in the following table:
The simplified sky map below shows the position of Grumium in the sky:
Visibility of Grumium from your location
Grumium - ξ Draconis (xi Draconis) is circumpolar and transits at 15:59 UTC (altitude: 84.6°)
Digitized Sky Survey image of Grumium
The image below is a photograph of Grumium 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 Grumium is 0.094 arcsec per year in Right Ascension and 0.08 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of Grumium from the Sun and relative movement
Grumium is distant 111.41 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.
Spectral properties of Grumium
Grumium belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where Grumium is situated in the Hertzsprung–Russell diagram.
Grumium star system properties
Grumium 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 Grumium double sysyem: