Eridanus (constellation)

EridanusEridanoEriconstellation EridanusEridaniEridanus constellationFluvius EridanusRiver
Eridanus is a constellation in the southern hemisphere.wikipedia
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Achernar

AchenarAchernar ThreeAlpha Eridani
At its southern end is the magnitude 0.5 star Achernar, designated Alpha Eridani.
Achernar is the primary (or 'A') component of the binary system designated Alpha Eridani (α Eridani, abbreviated Alpha Eri, α Eri), which is the brightest star in the constellation of Eridanus, and the tenth-brightest in the night sky.

IAU designated constellations by area

List of constellations by area88 modern constellations by area25th
It is the sixth largest of the modern constellations.

Theta Eridani

Acamarθ 1 Eriθ 1 Eridani A
Theta Eridani, called Acamar, is a binary star with blue-white components, distinguishable in small amateur telescopes and 161 light-years from Earth.
Theta Eridani (θ Eridani, abbreviated Theta Eri, θ Eri) is a binary system in the constellation of Eridanus.

Beta Eridani

β EriCursaβ Eri (Cursa)
Beta Eridani, traditionally called Cursa, is a blue-white star of magnitude 2.8, 89 light-years from Earth.
Beta Eridani (β Eridani, abbreviated Beta Eri, β Eri), formally named Cursa, is the second-brightest star in the constellation of Eridanus, located in the northeast end of this constellation near the shared border with Orion.

Epsilon Eridani

ε Eridaniε EriEpsilon Erdani
Epsilon Eridani (the proper name is Ran ) is a star with one extrasolar planet similar to Jupiter.
Epsilon Eridani (ε Eridani, abbreviated Epsilon Eri, ε Eri), formally named Ran, is a star in the southern constellation of Eridanus, at a declination of 9.46° south of the celestial equator.

40 Eridani

40 Eridani B40 Eridani AKeid
40 Eridani is a triple star system consisting of an orange main-sequence star, a white dwarf, and a red dwarf.
40 Eridani (abbreviated 40 Eri), also designated Omicron² Eridani (ο² Eridani, abbreviated Omicron² Eri, ο² Eri), is a triple star system in the constellation of Eridanus.

P Eridani

6 Erip EriHD 10360
p Eridani is a binary star with two orange components, 27 light-years from Earth.
p Eridani is a binary star system in the constellation of Eridanus (the River) whose distance from the Sun is approximately 26 light-years based upon parallax.

39 Eridani

39 EriA Eri
39 Eridani is a binary star also divisible in small amateur telescopes, 206 light-years from Earth.
39 Eridani is a wide binary star system in the equatorial constellation of Eridanus.

IAU designated constellations

88 modern constellations88 constellationsmodern constellation
It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.

CMB cold spot

Eridanus Supervoidcold spotWMAP cold spot
The Eridanus Supervoid is a large supervoid (an area of the universe devoid of galaxies) discovered.
It is, therefore, in the Southern Celestial Hemisphere, in the direction of the constellation Eridanus.

NGC 1232

1232
Eridanus contains the galaxies NGC 1232, NGC 1234, NGC 1291 and NGC 1300, a grand design barred spiral galaxy.
NGC 1232 is an intermediate spiral galaxy about 60 million light-years away in the constellation Eridanus.

Fornax

ForFornax ChemicaFornax constellation
Eridanus is depicted in ancient sky charts as a flowing river, starting from Orion and flowing in a meandering fashion past Cetus and Fornax and into the southern hemispheric stars.
Fornax is a constellation in the southern sky, partly ringed by the celestial river Eridanus.

NGC 1300

1300C 2 Spiral Galaxy NGC 1300
Eridanus contains the galaxies NGC 1232, NGC 1234, NGC 1291 and NGC 1300, a grand design barred spiral galaxy. NGC 1300 is a face-on barred spiral galaxy located 61 (plus or minus 8) million light-years away.
NGC 1300 is a barred spiral galaxy located about 61 million light-years away in the constellation Eridanus.

IC 2118

1909Witchhead Nebula
IC 2118 is a faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in Orion.
It lies in the Eridanus constellation, about 900 light-years from Earth.

NGC 1291

12691291
Eridanus contains the galaxies NGC 1232, NGC 1234, NGC 1291 and NGC 1300, a grand design barred spiral galaxy.
NGC 1291, also known as NGC 1269, is a ring galaxy with an unusual inner bar and outer ring structure located about 33 million light-years away in the constellation Eridanus.

NGC 1234

1234
Eridanus contains the galaxies NGC 1232, NGC 1234, NGC 1291 and NGC 1300, a grand design barred spiral galaxy.
NGC 1234 is a peculiar barred spiral galaxy exhibiting a ring structure in the constellation Eridanus, discovered by Francis Preserved Leavenworth in 1886.

Orion (constellation)

OrionOrion constellationconstellation of Orion
IC 2118 is a faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in Orion.
In artistic renderings, the surrounding constellations are sometimes related to Orion: he is depicted standing next to the river Eridanus with his two hunting dogs Canis Major and Canis Minor, fighting Taurus.

NGC 1535

1535
NGC 1535 is a small blue-gray planetary nebula visible in small amateur telescopes, with a disk visible in large amateur instruments.
NGC 1535 is a planetary nebula in the constellation of Eridanus, discovered by William Herschel on February 1, 1785.

Eridanus in Chinese astronomy

EridanusEridanus (Chinese astronomy)
The modern constellation Eridanus lies across one of the quadrants symbolized by the White Tiger of the West (西方白虎, Xī Fāng Bái Hǔ), and The Southern Asterisms (近南極星區, Jìnnánjíxīngōu), that divide the sky in traditional Chinese uranography.

USS Eridanus (AK-92)

USS ''Eridanus'' (AK-92)
USS Eridanus (AK-92) was a United States Navy Crater class cargo ship named after the constellation.
She was named after the constellation Eridanus.

Barred spiral galaxy

barbarredbarred spiral
NGC 1300 is a face-on barred spiral galaxy located 61 (plus or minus 8) million light-years away.

Cetus

Cetus (constellation)CetWhale
Eridanus is depicted in ancient sky charts as a flowing river, starting from Orion and flowing in a meandering fashion past Cetus and Fornax and into the southern hemispheric stars.
Cetus is in the region of the sky that contains other water-related constellations such as Aquarius, Pisces, and Eridanus.

Rigel

Beta Orionisβ Ori (Rigel)β Orionis
IC 2118 is a faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in Orion.
Eridanus, the river, marks a line of stars in the sky leading to it, and the other stars of Orion are his ceremonial tools and entourage.

Taurus (constellation)

TaurusTaurus constellationToro
Taurus is a large and prominent constellation in the northern hemisphere's winter sky, between Aries to the west and Gemini to the east; to the north lies Perseus and Auriga, to the southeast Orion, to the south Eridanus, and to the southwest Cetus.

Hydrus

HyiMu Hydrithe constellation of the same name
Irregular in shape, Hydrus is bordered by Mensa to the southeast, Eridanus to the east, Horologium and Reticulum to the northeast, Phoenix to the north, Tucana to the northwest and west, and Octans to the south; Lacaille had shortened Hydrus' tail to make space for this last constellation he had drawn up.