Best Eridanus
The Witch Head Nebula, formally designated IC 2118, is a diffuse emission nebula within the Eridanus constellation. It’s notable for its distinctive skull-like appearance formed by reflected light from the bright star Rigel. This reflection nebula contains interstellar dust and molecular gas alongsi...
40 Eridani B is a white dwarf star located approximately 16 light-years from Earth, serving as a component of the 40 Eridani triple star system in the constellation of Eridanus. It was one of the first white dwarfs to be identified and analyzed, with astronomers in the early 20th century recognizing...
The Orion-Eridanus Superbubble is an immense cavity of ionized hydrogen gas in the Milky Way, spanning approximately 40 degrees of the night sky. It was formed by stellar winds and supernova explosions from massive stars in the Orion OB1 association. Astronomers study this superbubble to better unde...
Epsilon Eridani is a K2V main-sequence star located approximately 10.5 light-years from the Sun in the constellation Eridanus, making it one of the nearest Sun-like stars. It is younger than the Sun, with age estimates ranging roughly from 400 million to 800 million years, and exhibits significant m...
Achernar, designated Alpha Eridani, is the brightest star in the constellation Eridanus and the ninth-brightest star in the night sky. Classified as a hot, blue main-sequence B-type star, it is located in the southern celestial hemisphere. Due to its exceptionally rapid rotation, Achernar is signifi...
Cleopatra's Eye is a planetary nebula in the constellation Eridanus noted for its complex inner structure and distinct, eye-like central star.
Cleopatra's Eye Nebula, formally designated as NGC 1535, is a planetary nebula located in the constellation Eridanus. It was discovered by the astronomer William Herschel in 1785 and consists of an expanding shell of glowing ionized gas ejected from an aging central star. The nebula features a compl...
Delta Eridani, designated by the traditional name Rana, is a yellow-orange subgiant star located in the constellation of Eridanus, approximately 29 light-years from Earth. It has a stellar classification of K0 IV, indicating it has exhausted the hydrogen in its core and is evolving away from the mai...
HD 28185 is a yellow dwarf star located approximately 138 light-years away in the constellation Eridanus, classified as a G-type solar analog. It is known for hosting an exoplanet, HD 28185 b, which was discovered in 2001 by the CORALIE spectrograph team using the radial velocity method. The exoplan...
The Witch Head Nebula, cataloged as IC 2118, is a faint reflection nebula located in the constellation Eridanus, roughly 900 light-years from Earth. It is composed of interstellar dust grains that reflect the light of nearby sources, most notably the blue supergiant star Rigel in the neighboring con...
Azha is the traditional name of Eta Eridani, a star in the constellation Eridanus. It is an orange-hued K-type giant located roughly 130 light-years from Earth, meaning it has exhausted the hydrogen at its core and expanded beyond the main-sequence stage. Its Arabic-derived name is traditionally int...
NGC 1535, often called Cleopatra's Eye, is a planetary nebula in the constellation Eridanus. William Herschel discovered it in 1785, and telescopic images show a bright blue-green inner region surrounded by a dimmer, more extended envelope. The layered appearance comes from ionized gas expelled by a...
Phaethon was a medieval star figure identified with Auriga, recalling Helios's son whose fatal chariot ride was retold by Hyginus.
