55 Orionis is a variable sub-giant star in the constellation of Orion.
55 Orionis visual magnitude is 5.35. Because of its reltive faintness, 55 Orionis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.
The table below summarizes the key facts about 55 Orionis:
Celestial coordinates and finder chart of 55 Orionis
55 Orionis 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 55 Orionis are provided in the following table:
The simplified sky map below shows the position of 55 Orionis in the sky:
Visibility of 55 Orionis from your location
Digitized Sky Survey image of 55 Orionis
The image below is a photograph of 55 Orionis 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 55 Orionis is -0.001 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of 55 Orionis from the Sun and relative movement
55 Orionis is distant 1,680.41 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.
Spectral properties of 55 Orionis
55 Orionis belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.
The red dot in the diagram below shows where 55 Orionis is situated in the Hertzsprung–Russell diagram.