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public LocationGreenwich, UK
Sunrise: 5:00 
Transit: 13:04 
Sunset: 21:07
sunny   (Daytime)   What's Visible Now?
All Constellations » Eridanus » 

15 Eridani

Above the horizon.  Rise: 4:51 | Tran: 8:44 | Set: 12:38
Alt: 12.97°   Az: 203.39°   Direction: South-South-West

15 Eridani is a double giant star of spectral class G6 in the constellation of Eridanus.

15 Eridani visual magnitude is 4.88. Because of its moderate brightness, 15 Eridani is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

15 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.

Image of 15 Eridani star
DSS2 image of 15 Eridani. The red arrow shows the motion of 15 Eridani during the next 10000 years (3.00 arcmin in Right Ascension and 2.00 arcmin in declination);

Celestial Coordinates


03h 19m 27s
-22° 25’ 23”
01h 38m 57s
04h 58m 24s


03h 18m 22s
-22° 30’ 41”

Galactic Coordinates


Finder Chart

Finder chart 15 Eridani star
Simplified finder chart for 15 Eridani.

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where 15 Eridani is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 15 Eridani. Attribution: Richard Powell / CC BY-SA

Star System Properties

15 Eridani 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 15 Eridani double sysyem:

0.2 arcsec

Distance, Radial Speed, Proper Motion

15 Eridani is distant 254.89 light years from the Sun and it is moving far from the Sun at the speed of 24 kilometers per second.

78.19 pc
254.89 ly
24 km/s
0.018 arcsec/y
0.012 "/y

Alternative Designations


Visibility from Your Location

Today's 15 Eridani rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 112.4°
Max altitude: 16.1°
Azimuth: 247.6°