We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
Help keep this site free and ads-free: donate now!
public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 5:08 
Transit: 12:54 
Sunset: 20:42
wb_twilight   (Nautical Twilight)   What's Visible Now?

15 Eridani

Altitude: -39.3°   Azimuth: 76.5°   Direction: East-North-East

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

15 Eridani visual magnitude is 4.88. Because of its moderate brightness, 15 Eridani should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of 15 Eridani is 0.018 arcsec per year in Right Ascension and 0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

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);

Key facts about 15 Eridani

4.88
Giant

15 Eridani is below the horizon from Greenwich, United Kingdom.

Altitude: -39.3°
Azimuth: 76.5°
Direction: East-North-East

Celestial coordinates and finder chart of 15 Eridani

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. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 15 Eridani are provided in the following table:

03h 18m 22s
-22° 30’ 41”
213.26°
-56.46°
Eridanus

The simplified sky map below shows the position of 15 Eridani in the sky:

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

Visibility of 15 Eridani from your location

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

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

Azimuth: 112.5°
Max altitude: 16.0°
Azimuth: 247.5°

Distance of 15 Eridani from the Sun and relative movement

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/year
0.012 arcsec/year

Spectral properties of 15 Eridani

15 Eridani belongs to spectral class G6 and has a luminosity class of III corresponding to a giant star.

0.41
G6III
4996K

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

15 Eridani 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:

4.88
6.18
1.3
0.2 arcsec

Alternative designations of 15 Eridani

SAO168452
SAO168452