John Flamsteed added Eta, Iota and four Roman letters; of these, only Iota is still used as the others were dropped in subsequent catalogues and star charts.
Of these, only Iota is still used as the others were dropped in subsequent catalogues and star charts. John Flamsteed added Eta, Iota and four Roman letters.
John Flamsteed added Eta, Iota and four Roman letters. Of these, only Iota is still used as the others were dropped in subsequent catalogues and star charts.
John Flamsteed added Eta, Iota and four Roman letters. Of these, only Iota is still used as the others were dropped in subsequent catalogues and star charts.