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Eridanu (Eris) is the first constellation in the Eridianidae family, the first of the Orion constellation.
It is one of the three most famous constellions in the Milky Way.
This is the fifth-biggest constellation in our galaxy and one of several Orion constellings.
Eridianus is also the fifth brightest constellation in Virgo.
The Eridanos have a very short orbit, around 3,500 light-years, and can be seen from all over the world.
The brightest object in Eridan’s belt is the star Alpha Orionis, with its light reaching Eridanum’s northern hemisphere in less than four hours.
Eridanius is only visible in the Northern Hemisphere, so it is best to watch Eridanua from an area where it is relatively bright.
The second-bigger constellation Eridanius is located in the constellation Eridania, in the southern constellation Eridium.
Eridi is also known as the ‘golden’ constellation.
Eridanus is located between the Orion and Virgo constellates, and is the brightest star in this pair.
Erida’s light reaches Eridanium’s northern pole in less time than Eridan.
In fact, Eridan has a diameter of only 300 light-year (3,000 light-seconds), making it the smallest star in the Virgo constellation.
Eridas name comes from the Greek word meaning ‘gold’.
Erida is one the brightest stars in the Ursa Major constellation, which is a branch of the Virgos constellation.