4 Eridani

Above the horizon. Rise: 5:21 | Tran: 9:30 | Set: 13:38

Alt: 2.57° Az: 230.85° Direction: South-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.

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

Right Ascension 02h 58m 31s

Declination -23° 45’ 38”

Hour Angle 03h 51m 19s

Sidereal Time 06h 49m 51s

J2000

Right Ascension 02h 57m 23s

Declination -23° 51’ 42”

Galactic Coordinates

Galactic Longitude 213.46°

Galactic Latitude -61.47°

Finder Chart

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Finder chart for 4 Eridani.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.45

Class Main-sequence

Absolute magnitude 2.01

Spectral Type A5V

Color Index (B-V) 0.23

Temperature 7938K

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

Distance (parsec) 48.69

Distance (light year) 158.71

Radial Speed 29 km/s

Proper Motion RA 0.098 arcsec/y

Proper Motion Dec -0.03"/y

Alternative Designations

Flamsteed designation 4 Eridani

Henry Draper Catalogue HD18454

SAO Catalogue SAO168183

Hipparcos Catalogue HIP13782

Durchmusterung Catalogue CD-24 1336

Visibility from Your Location

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

Azimuth: 113.8° RISE 5:21

Max altitude: 19.9° TRANSIT 9:30

Azimuth: 246.2° SET 13:38

Name:	Larga, Romania
Latitude:	46° 21' 2.2" N
Longitude:	26° 31' 59.5" E
Timezone:	Europe/Bucharest

Set Location

Other stars in Eridanus