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The radius of the "cold spot" subtends about 5°; it is centered at the galactic coordinate l II = 207.8°, b II = −56.3° (equatorial: α = 03 h 15 m 05 s, δ = −19° 35′ 02″). It is, therefore, in the Southern Celestial Hemisphere, in the direction of the constellation Eridanus.
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 .
Eridanus Void: This void is separated from the Sculptor void by a sheet of galaxies. [11] Eridanus Supervoid (Great Void) 03 h 15 m 05 s −19° 35′ 02″ z=1 150 Mpc The claimed Eridanus Supervoid or "Great Void", reported on 24 August 2007 by the NRAO from Very Large Array Sky Survey data. [12]
Eridanus Supervoid: 489,000,000 (most likely value) A recent analysis of the Wilkinson Microwave Anisotropy Probe (WMAP) in 2007 has found an irregularity of the temperature fluctuation of the cosmic microwave background within the vicinity of the constellation Eridanus with analysis found to be 70 microkelvins cooler than the average CMB ...
In 1847, John Herschel had pointed out the existence of a stream of galaxies or nebulae as they were known at the time in the constellations of Cetus, Fornax, Eridanus, Horologium, and Dorado. Later in 1953 Gérard de Vaucouleurs recognized this band as a supercluster [ 1 ] dubbing it the ''southern supergalaxy'', [ 13 ] with many of the groups ...
The Eridanus Group, sometimes called the Eridanus Cloud, is a nearby loose grouping of galaxies at a mean distance of approximately 75 Mly (23 ± 2 Mpc) in the constellation Eridanus. [1] Redshift values show that there are approximately 200 galaxies associated with the group, approximately 70% of which are spiral and irregular type galaxies ...
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 θ 1 Eridani, formally named Acamar / ˈ æ k ə m ɑːr / (the traditional name of the system), [13] [14] and θ 2 Eridani.
NGC 1332 is an almost edge-on elliptical galaxy located in constellation of Eridanus.Situated about 70 million light years away, it is a member of the Eridanus cluster of galaxies, a cluster of about 200 galaxies.