The constellation Eridanus is in the southern celestial hemisphere. It is portrayed as a river. It is one among the eighty-eight contemporary constellations and was one of the forty-eight listed by the second-century astronomer Ptolemy. It is the sixth largest of the modern constellations and the one that stretches the most from north to south across the sky. Later, the same name was used as a Latin name for the real Po River as well as a minor river in Athens. (Ridpath & Tirion 2001)
|
Deep-sky Objects
NGC 1535 – Planetary Nebula
IC 2118 – Reflection Nebula (Witch Head Nebula)
NGC 1232 – Intermediate Spiral Galaxy
NGC 1234 – Peculiar Barred Spiral Galaxy
NGC 1291 – (known also as NGC 1269) Ring Galaxy
NGC 1300 – Barred Spiral Galaxy
NGC 1535 – Planetary Nebula
IC 2118 – Reflection Nebula (Witch Head Nebula)
NGC 1232 – Intermediate Spiral Galaxy
NGC 1234 – Peculiar Barred Spiral Galaxy
NGC 1291 – (known also as NGC 1269) Ring Galaxy
NGC 1300 – Barred Spiral Galaxy
The Eridanus Supervoid, found in 2007, is a huge supervoid (a region of the universe devoid of galaxies). It is the second largest known void, second only to the Giant Void in Canes Venatici, with a diameter of around one billion light years. It was identified by tying a "cold area" in the cosmic microwave background to a lack of radio galaxies in data from the Very Large Array Sky Survey of the US National Radio Astronomy Observatory. The emptiness could be caused by quantum entanglement between our reality and another, according to certain theories.
|
Main stars - 24
Bayer stars - 87
Stars with planets - 32
Stars brighter than magnitude 3.00 - 4
Stars within 32 ly - 13
Bordering
constellations
Bayer stars - 87
Stars with planets - 32
Stars brighter than magnitude 3.00 - 4
Stars within 32 ly - 13
Bordering
constellations
- Cetus
- Fornax
- Phoenix
- Hydrus
- Tucana (corner)
- Horologium
- Caelum
- Lepus
- Orion
- Taurus