3 Cassiopeiae

3 Cassiopeiae (3 Cas) is a hypothetical star in the Cassiopeia constellation catalogued by English astronomer John Flamsteed. It bears no identity with actual stars observed today. Unlike 34 Tauri, which was the planet Uranus, 3 Cas was not reconciled by later knowledge.

Read more about 3 Cassiopeiae:  Identity As Cassiopeia A Supernova, Identity As Erroneous Data

Other articles related to "3 cassiopeiae":

3 Cassiopeiae - Identity As Erroneous Data
... Herschel noted that a star in the vicinity of τ Cas, SAO 35386, fitted well with 3 Cas if a common error in sextant readings was made ...