Tau4 Eridani

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Tau4 Eridani (τ4 Eridani, τ4 Eri) is a binary star system in the constellation Eridanus. It is visible to the naked eye with an apparent visual magnitude that varies from 3.57 to 3.72. The distance to this star can be estimated using the parallax method, which yields a value of roughly 300 light years.

Excerpt from the Wikipedia article “Tau4 Eridani”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: PopePompus, CC BY-SA 4.0, via Wikimedia Commons.