39 Eridani is a multiple giant star in the constellation of Eridanus.
39 Eridani visual magnitude is 4.87. Because of its moderate brightness, 39 Eridani 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 39 Eridani:
Celestial coordinates and finder chart of 39 Eridani
39 Eridani 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 39 Eridani are provided in the following table:
The simplified sky map below shows the position of 39 Eridani in the sky:
Visibility of 39 Eridani from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's 39 Eridani rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of 39 Eridani
The image below is a photograph of 39 Eridani 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 39 Eridani is -0.009 arcsec per year in Right Ascension and -0.162 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of 39 Eridani from the Sun and relative movement
39 Eridani is distant 206.33 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.
Spectral properties of 39 Eridani
39 Eridani belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where 39 Eridani is situated in the Hertzsprung–Russell diagram.
39 Eridani star system properties
39 Eridani 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 39 Eridani double sysyem: