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Eridanus (/ ɪ ˈ r ɪ d ən ə s /) 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 astronomer Ptolemy, it remains one of the 88 modern constellations. It is the sixth largest of the modern constellations.
When in Nonnus' fourth- or fifth-century CE Dionysiaca the vast monster Typhon boasts that he will bathe in "starry Eridanus", it is hyperbole, for the constellation Eridanus, represented as a river, was one of the 48 constellations listed by the second-century astronomer Ptolemy; it remains one of the 88 modern constellations.
Epsilon Eridani (Latinized from ε Eridani), proper name Ran, [ 17 ] 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 10.5 light-years (3.2 parsecs) from the Sun, it has an apparent magnitude of 3.73, making it the third-closest individual star ...
Fornax (/ ˈfɔːrnæks /) is a constellation in the southern celestial hemisphere, partly ringed by the celestial river Eridanus. Its name is Latin for furnace. It was named by French astronomer Nicolas Louis de Lacaille in 1756. Fornax is one of the 88 modern constellations.
Temperature. ~150 K (−123 °C; −190 °F) [3] Epsilon Eridani b, also known as AEgir [sic], [4] is an exoplanet approximately 10.5 light-years away orbiting the star Epsilon Eridani, in the constellation of Eridanus (the River). The planet was discovered in 2000, and as of 2024 remains the only confirmed planet in its planetary system.
Theta Eridani, Latinized from θ Eridani, is a binary system in the constellation of Eridanus with a combined apparent magnitude of 2.88. [6] Its two components are designated θ1 Eridani, formally named Acamar / ˈækəmɑːr / (the traditional name of the system), [13][14] and θ2 Eridani. The system's distance from the Sun based on parallax ...
Achernar is the brightest star in the constellation of Eridanus and the ninth-brightest in the night sky. It has the Bayer designation Alpha Eridani, which is Latinized from α Eridani and abbreviated Alpha Eri or α Eri. The name Achernar applies to the primary component [14] of a binary system. [5] The two components are designated Alpha ...
40 Eridani / Keid. 40 Eridani is a triple star system in the constellation of Eridanus, abbreviated 40 Eri. It has the Bayer designation Omicron2 Eridani, which is Latinized from ο2 Eridani and abbreviated Omicron 2 Eri or ο2 Eri. Based on parallax measurements taken by the Gaia mission, it is about 16.3 light-years from the Sun.