45 Orionis is a multiple hypergiant star in the constellation of Orion.
45 Orionis visual magnitude is 5.26. Because of its reltive faintness, 45 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 45 Orionis:
Celestial coordinates and finder chart of 45 Orionis
45 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 45 Orionis are provided in the following table:
The simplified sky map below shows the position of 45 Orionis in the sky:
Visibility of 45 Orionis from your location
Digitized Sky Survey image of 45 Orionis
The image below is a photograph of 45 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 45 Orionis is 0.009 arcsec per year in Right Ascension and 0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of 45 Orionis from the Sun and relative movement
45 Orionis is distant 370.45 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.
Spectral properties of 45 Orionis
45 Orionis belongs to spectral class F0 and has a luminosity class of III corresponding to a hypergiant star.
The red dot in the diagram below shows where 45 Orionis is situated in the Hertzsprung–Russell diagram.
45 Orionis star system properties
45 Orionis 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 45 Orionis double sysyem: