π4 Orionis (pi4 Orionis)
π4 Orionis is a variable giant star in the constellation of Orion.
π4 Orionis visual magnitude is 3.69. Because of its moderate brightness, π4 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 π4 Orionis:
Celestial coordinates and finder chart of π4 Orionis
π4 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 π4 Orionis are provided in the following table:
The simplified sky map below shows the position of π4 Orionis in the sky:
Visibility of π4 Orionis from your location
Digitized Sky Survey image of π4 Orionis
The image below is a photograph of π4 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 π4 Orionis is -0.001 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of π4 Orionis from the Sun and relative movement
π4 Orionis is distant 1,258.69 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.
Spectral properties of π4 Orionis
π4 Orionis belongs to spectral class B2 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where π4 Orionis is situated in the Hertzsprung–Russell diagram.