Bayer letter

Bayer letter

[′bī·ər ‚led·ər]
(astronomy)
The Greek (or Roman) letter used in a Bayer name.
References in periodicals archive ?
The underlying problem is that so many Go To controllers offer no way to locate stars by their most common designations, such as Bayer letters, Flamsteed numbers, and Struve numbers.
In this system, known today as the "Bayer letters," the Greek letter and genitive (possessive) form of the constellation's Latin name are used to designate a star.

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