51 Geminorum is a variable and multiple giant star in the constellation of Gemini.
51 Geminorum visual magnitude is 5. Because of its moderate brightness, 51 Geminorum 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 51 Geminorum:
Celestial coordinates and finder chart of 51 Geminorum
51 Geminorum 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 51 Geminorum are provided in the following table:
The simplified sky map below shows the position of 51 Geminorum in the sky:
Visibility of 51 Geminorum from your location
Digitized Sky Survey image of 51 Geminorum
The image below is a photograph of 51 Geminorum 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 51 Geminorum is 0.013 arcsec per year in Right Ascension and -0.042 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of 51 Geminorum from the Sun and relative movement
51 Geminorum is distant 699.57 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.
Spectral properties of 51 Geminorum
51 Geminorum belongs to spectral class M4 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where 51 Geminorum is situated in the Hertzsprung–Russell diagram.
51 Geminorum star system properties
51 Geminorum is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 51 Geminorum double sysyem: