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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:06 
Transit: 12:56 
Sunset: 20:47
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All Constellations » Eridanus » 

4 Eridani

Below the horizon.  Rise: 8:32 | Tran: 12:16 | Set: 16:01
Alt: -54.47°   Az: 310.24°   Direction: North-West

4 Eridani is a main-sequence star of spectral class A5 in the constellation of Eridanus.

4 Eridani visual magnitude is 5.45. Because of its faintness, 4 Eridani is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of 4 Eridani star
DSS2 image of 4 Eridani. The red arrow shows the motion of 4 Eridani during the next 1000 years (1.63 arcmin in Right Ascension and -0.50 arcmin in declination);

Celestial Coordinates

Apparent

02h 58m 31s
-23° 45’ 40”
10h 04m 01s
13h 02m 32s

J2000

02h 57m 23s
-23° 51’ 42”

Galactic Coordinates

213.46°
-61.47°

Finder Chart

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Finder chart for 4 Eridani.

Magnitude, Color, Spectral Class

5.45
Main-sequence

2.01
A5V
7938K

The red dot in the diagram below shows where 4 Eridani is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 4 Eridani. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

4 Eridani is distant 158.71 light years from the Sun and it is moving far from the Sun at the speed of 29 kilometers per second.

48.69
158.71
29 km/s
0.098 arcsec/y
-0.03"/y

Alternative Designations

SAO168183
SAO168183

Visibility from Your Location

Today's 4 Eridani rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 113.8°
Max altitude: 14.8°
Azimuth: 246.2°