Eridanus
Eri
Rank: #6
1138 sq. deg.
Eridanus is a constellation which stretches along the southern celestial hemisphere. It is represented as a river. One of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, it remains one of the 88 modern constellations.
IAU constellation map showing the boundaries and main stars
Eridanus
| Genitive | Eridani |
| Symbolism | the Eridanus |
| Right ascension | 03h 20m 00s |
| Declination | -20° 00' 00" |
| Area | 1138 sq. deg. |
| Area rank | 6th |
| Brightest star | Achernar (mag 0.46) |
Deep-Sky Objects Summary
30
Brightest Stars
1
Open Clusters
0
Globular Clusters
30
Galaxies
0
Nebulae
Brightest Stars
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Galaxies
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