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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:52  
clear_day Transit: 12:55  
SunsetSet: 20:59 south
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All Constellations » Eridanus » 

δ Eridani (delta Eridani)

δ Eridani is a variable hypergiant star in the constellation of Eridanus.

δ Eridani visual magnitude is 3.54. Because of its moderate brightness, δ 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 δ Eridani:

δ Eridani (delta Eridani) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of δ Eridani

δ 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 δ Eridani are provided in the following table:

03h 43m 14s
-09° 45’ 47”

The simplified sky map below shows the position of δ Eridani in the sky:

Finder chart δ Eridani (delta Eridani) star
Simplified finder chart for δ Eridani (delta Eridani).

Visibility of δ Eridani from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's δ Eridani (delta Eridani) rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 99.8°
Max altitude: 28.8°
Azimuth: 260.2°
δ Eridani (delta Eridani) is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of δ Eridani

The image below is a photograph of δ 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 δ Eridani is -0.092 arcsec per year in Right Ascension and 0.745 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of δ Eridani (delta Eridani) star
DSS2 image of δ Eridani. The red arrow shows the motion of δ Eridani during the next 1000 years (-1.53 arcmin in Right Ascension and 12.42 arcmin in declination);

Distance of δ Eridani from the Sun and relative movement

δ Eridani is distant 29.48 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

9.04 pc
29.48 ly
-6 km/s
-0.092 arcsec/year
0.745 arcsec/year

Spectral properties of δ Eridani

δ Eridani belongs to spectral class K0 and has a luminosity class of IV corresponding to a hypergiant star.


The red dot in the diagram below shows where δ Eridani is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of δ Eridani. Attribution: Richard Powell / CC BY-SA

Alternative designations of δ Eridani

δ Eridani
(delta Eridani)