ψ2 Orionis (psi2 Orionis)
ψ2 Orionis is a variable and multiple sub-giant star in the constellation of Orion.
ψ2 Orionis visual magnitude is 4.59. Because of its moderate brightness, ψ2 Orionis 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 ψ2 Orionis:
Celestial coordinates and finder chart of ψ2 Orionis
ψ2 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 ψ2 Orionis are provided in the following table:
The simplified sky map below shows the position of ψ2 Orionis in the sky:
Visibility of ψ2 Orionis from your location
Digitized Sky Survey image of ψ2 Orionis
The image below is a photograph of ψ2 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 ψ2 Orionis is 0.002 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of ψ2 Orionis from the Sun and relative movement
ψ2 Orionis is distant 1,417.39 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.
Spectral properties of ψ2 Orionis
ψ2 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 ψ2 Orionis is situated in the Hertzsprung–Russell diagram.
ψ2 Orionis star system properties
ψ2 Orionis is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the ψ2 Orionis double sysyem: