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1. Allen:

"Sterope I and Sterope II, less correctly Asterope, are a widely double star at the upper edge of the rising [Pleiades] cluster, and faintly visible only by reason of the combined light; so that Al Sufi's 5th magnitude seems large.

Ovid made use of Sterope sidus to symbolize the whole, but the present magnitudes would show that his star - if, indeed, he referred to any special star at all, as is improbable - was not ours, or else that a change in brilliancy has taken place. In fact, this also [in addition to Celaeno], and not without reason, has been called the Lost Pleiad."

My astronomy book has this picture, which describes neither Asterope nor Celaeno (nor Pleione) as stars which are connected to the rest:

The stars in the Pleiades group are so close together that we cannot refer any of them to any particular glyph:

Gb8-18 (460) Gb8-19 Gb8-20 Gb8-21 (463) Gb8-22 Gb8-23 Gb8-24
         The Pleiades
Gb8-25 Gb8-26 (468) Gb8-27 Gb8-28 Gb8-29 Gb8-30
Menkar α Ceti 2.54 03º 54' N 03h 00m 45.7 453.7 453
Algol β Persei 2.09 40º 46' N 03h 05m 46.9 454.9 454¼
Algenib α Persei 1.79 49º 41' N 03h 21m 51.0 459.0 458¼
The Pleiades:
Celaeno 16 Tauri 5.45 24º 08' N 03h 42m 56.3 464.3 463½
Asterope 21 Tauri 5.76 24º 24' N 03h 43m 56.6 464.6 463¾
Alcyone η Tauri 2.85 23º 57' N 03h 45m 57.1 465.1 464¼

Only 'the Halcyon bird' (Alcyone) has a greek letter, while the lesser stars have been given numbers.