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Eridanus (constellation)
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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 rema
The constellation of Eridanus, the river, as seen by the naked eye from northern latitudes.
The constellation of Eridanus, the river, as seen by the naked eye from northern latitudes.
Artist's impression of a Jupiter-mass planet orbiting the nearby star Epsilon Eridani
Artist's impression of a Jupiter-mass planet orbiting the nearby star Epsilon Eridani
Cetus dips his paws into Eridanus in this plate from Urania's Mirror (1825).
Cetus dips his paws into Eridanus in this plate from Urania's Mirror (1825).
The constellation Eridanus showing the IAU boundaries, the constellation stick figure, and labels for its brightest stars. Astrophotograph by Eckhard
The constellation Eridanus showing the IAU boundaries, the constellation stick figure, and labels for its brightest stars. Astrophotograph by Eckhard Slawik, from NOIRLab's 88 Constellations project.
Epsilon Eridani
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Epsilon Eridani, proper name Ran, is a star in the southern constellation of Eridanus. At a declination of −9.46°, it is visible from most of Earth's surface. Located at a distance of 10.5 light-years
Eridanus (constellation)
…a binary star with two orange components, 27 light-years from Earth. The magnitude 5.8 primary and 5.9 secondary have an orbital period of 500 years. Epsilon Eridani (Ran) is a star with one extrasolar planet similar to Jupiter. It is an orange-hued main-sequence star of magnitude 3.7, 10.5 light-years from Earth…
Comparison of the planets and debris belts in the Solar System to the Epsilon Eridani system. At the top is the asteroid belt and the inner planets of
Comparison of the planets and debris belts in the Solar System to the Epsilon Eridani system. At the top is the asteroid belt and the inner planets of the Solar System. Second from the top is the proposed inner asteroid belt and planet b of Epsilon Eridani. The lower illustrations show the corresponding features for the two stars' outer systems.
Artist's impression, showing two asteroid belts and a planet orbiting Epsilon Eridani
Artist's impression, showing two asteroid belts and a planet orbiting Epsilon Eridani
Artist's impression of Epsilon Eridani b orbiting within a zone that has been cleared of dust. Around the planet are conjectured rings and moons.
Artist's impression of Epsilon Eridani b orbiting within a zone that has been cleared of dust. Around the planet are conjectured rings and moons.