Observe eridanus in the sky in real time in 3D. You will also be able to see the planets of the solar system, the Sun and the Moon. Navigate freely in the sky by clicking on the keys to move forward or backward in time. Discover its position and display the azimuth grid to find your way in the sky. The « screen » feature allows you to take a picture of the sky and download the image.

MARDI 7 JUILLET 2026 À 10:14 UTC+2

Observation of the Eridanus constellation

Visualize in real time the position of the Eridanus constellation in the sky.

General presentation

The constellation of Eridanus is one of the longest constellations in the sky, visible mainly in autumn and winter. It stretches from the region of Orion to the southern sky where Achernar is its brightest star.

Shape of the Eridanus constellation

The constellation of Eridanus draws a long sinuous line of stars evoking a river that winds through the sky. This succession of curves constitutes one of the most extensive forms among the constellations.

Stars of the Eridanus constellation

StarMagnitudeDistanceEquatorial position J2000Current Equatorial PositionCurrent Horizontal Position at MarseilleLink
Cursa2.7989 light yearsRight ascension :
5ʰ7ᵐ50.99ˢ
Declination : -5°5'50.99″
Right ascension :
5ʰ9ᵐ8.6736863888ˢ
Declination :
-5°3′3.53345309″
Azimut :
-29.203409683508337°
Altitude :
37.40758724755658°
Mu Eridani4520 light yearsRight ascension :
4ʰ45ᵐ30.15038ˢ
Declination : -3°15'30.15038″
Right ascension :
4ʰ46ᵐ49.1870840882ˢ
Declination :
-3°12′16.7197863908″
Azimut :
-23.169950077504268°
Altitude :
40.950041908761214°
Nu Eridani3.93675 light yearsRight ascension :
4ʰ36ᵐ19.14144ˢ
Declination : -3°21'19.14144″
Right ascension :
4ʰ37ᵐ38.1991339637ˢ
Declination :
-3°17′49.0428071766″
Azimut :
-20.202384720718246°
Altitude :
41.47862245679241°
Beid4.04122 light yearsRight ascension :
4ʰ11ᵐ51.93956ˢ
Declination : -6°50'51.93956″
Right ascension :
4ʰ13ᵐ9.3973839112ˢ
Declination :
-6°46′2.4375015782″
Azimut :
-11.449279358466471°
Altitude :
39.28851152879376°
Zaurak2.88203 light yearsRight ascension :
3ʰ58ᵐ1.767ˢ
Declination : -13°30'1.767″
Right ascension :
3ʰ59ᵐ15.3758820073ˢ
Declination :
-13°25′46.5190620595″
Azimut :
-6.2989190344660315°
Altitude :
33.05643573876146°
Pi Eridani4.38480 light yearsRight ascension :
3ʰ46ᵐ8.536ˢ
Declination : -12°6'8.536″
Right ascension :
3ʰ47ᵐ23.5099229687ˢ
Declination :
-12°0′58.5992952319″
Azimut :
-2.9235014156188717°
Altitude :
34.64111696099699°
Rana3.5429.49 light yearsRight ascension :
3ʰ43ᵐ14.9ˢ
Declination : -9°45'14.9″
Right ascension :
3ʰ44ᵐ32.3961428084ˢ
Declination :
-9°40′40.1613998364″
Azimut :
-2.1551372534973945°
Altitude :
37.00133029422203°
Ran3.7310.489 light yearsRight ascension :
3ʰ32ᵐ55.845ˢ
Declination : -9°27'55.845″
Right ascension :
3ʰ34ᵐ12.4249421227ˢ
Declination :
-9°22′25.8971305251″
Azimut :
1.0389564040467245°
Altitude :
37.323664097328425°
Zibal4.8115 light yearsRight ascension :
3ʰ15ᵐ50.02537ˢ
Declination : -8°49'50.02537″
Right ascension :
3ʰ17ᵐ7.3271760745ˢ
Declination :
-8°43′10.3428612593″
Azimut :
6.393328812244238°
Altitude :
37.77607077586849°
Azha3.87137 light yearsRight ascension :
2ʰ56ᵐ25.65ˢ
Declination : -8°53'25.65″
Right ascension :
2ʰ57ᵐ42.87145264ˢ
Declination :
-8°47′17.8288701545″
Azimut :
12.380908489857527°
Altitude :
37.13155747417628°
Tau1 Eridani4.4646.6 light yearsRight ascension :
2ʰ45ᵐ6.1988ˢ
Declination : -18°34'6.1988″
Right ascension :
2ʰ46ᵐ19.973152981ˢ
Declination :
-18°27′18.4449153364″
Azimut :
13.665746759037757°
Altitude :
27.13673772769392°
Tau3 Eridani4.188.6 light yearsRight ascension :
3ʰ2ᵐ23.499ˢ
Declination : -23°37'23.499″
Right ascension :
3ʰ3ᵐ33.7574637213ˢ
Declination :
-23°31′4.473426981″
Azimut :
8.448305814923506°
Altitude :
22.729179974784618°
Tau5 Eridani4.26293 light yearsRight ascension :
3ʰ33ᵐ47.276ˢ
Declination : -21°37'47.276″
Right ascension :
3ʰ34ᵐ57.1817296437ˢ
Declination :
-21°32′25.4281589232″
Azimut :
0.6688843563051479°
Altitude :
25.159888146221455°
Tau8 Eridani4.63380 light yearsRight ascension :
3ʰ53ᵐ42.703ˢ
Declination : -24°36'42.703″
Right ascension :
3ʰ54ᵐ49.9731372981ˢ
Declination :
-24°31′49.3566680574″
Azimut :
-4.239371108289085°
Altitude :
22.056382120827088°
Tau9 Eridani4.63327 light yearsRight ascension :
3ʰ59ᵐ55.484ˢ
Declination : -24°0'55.484″
Right ascension :
4ʰ1ᵐ2.9240144261ˢ
Declination :
-23°56′16.9178777568″
Azimut :
-5.811962669787804°
Altitude :
22.548232455281763°
Theemin4.51127 light yearsRight ascension :
4ʰ33ᵐ30.552ˢ
Declination : -29°45'30.552″
Right ascension :
4ʰ34ᵐ32.0709761326ˢ
Declination :
-29°42′31.6321097265″
Azimut :
-12.835062002197727°
Altitude :
15.833360716367809°
Acamar3.24161 light yearsRight ascension :
2ʰ58ᵐ15.675ˢ
Declination : -40°18'15.675″
Right ascension :
2ʰ59ᵐ16.0192155243ˢ
Declination :
-40°11′39.90131462″
Azimut :
7.338972333922501°
Altitude :
6.062434256807708°
Iota Eridani4.11151 light yearsRight ascension :
4ʰ40ᵐ40.035ˢ
Declination : -39°51'40.035″
Right ascension :
4ʰ41ᵐ32.9220802812ˢ
Declination :
-39°48′2.3884807829″
Azimut :
-12.285052402581236°
Altitude :
5.654102711239712°
Kappa Eridani4.25510 light yearsRight ascension :
2ʰ26ᵐ59.122ˢ
Declination : -47°42'59.122″
Right ascension :
2ʰ27ᵐ57.4594098812ˢ
Declination :
-47°34′45.144702643″
Azimut :
11.646033839729295°
Altitude :
-2.163809367430613°
Phi Eridani3.55153.7 light yearsRight ascension :
2ʰ16ᵐ30.58563ˢ
Declination : -51°30'30.58563″
Right ascension :
2ʰ17ᵐ27.2953629736ˢ
Declination :
-51°22′57.1321938784″
Azimut :
12.41570305209378°
Altitude :
-6.260241833397238°
Chi Eridani3.757.4 light yearsRight ascension :
1ʰ55ᵐ57.45977ˢ
Declination : -51°36'57.45977″
Right ascension :
1ʰ56ᵐ58.2837058804ˢ
Declination :
-51°27′55.1915035069″
Azimut :
15.477113467016842°
Altitude :
-7.238161819612898°
Achernar0.4139 light yearsRight ascension :
1ʰ37ᵐ42.8466ˢ
Declination : -57°14'42.8466″
Right ascension :
1ʰ38ᵐ42.2414108455ˢ
Declination :
-57°5′40.4805006484″
Azimut :
16.072011704475905°
Altitude :
-13.436041501614394°