Tennyson has a different theory of the Pleiads:

"Many a night I saw the Pleiads, rising through the mellow shade, Glitter like a swarm of fire-flies tangled in a silver braid." Locksley Hall

Byron alludes to the lost Pleiad:

"Like the lost Pleiad seen no more below."

See also Mrs. Heman's verses on the same subject.

Aurora, the goddess of the Dawn, like her sister the Moon, was at times inspired with the love of mortals. Her greatest favorite was Tithonus, son of Laomedon, king of Troy. She stole him away, and prevailed on Jupiter to grant him immortality; but forgetting to have youth joined in the gift, after some time she began to discern, to her great mortification, that he was growing old. When his hair was quite white she left his society; but he still had the range of her palace, lived on ambrosial food, and was clad in celestial raiment. At length he lost the power of using his limbs, and then she shut him up in his chamber, whence his feeble voice might at times be heard. Finally she turned him into a grasshopper.

Memnon was the son of aurora and Tithonus. He was king of the AEthiopians, and dwelt in the extreme east, on the shore of Ocean. He came with his warriors to assist the kindred of his father in the war of Troy. King Priam received him with great honors, and listened with admiration to his narrative of the wonders of the ocean shore.

The very day after his arrival, Memnon, impatient of repose, led his troops to the field. Antilochus, the brave son of Nestor, fell by his hand, and the Greeks were put to flight, when Achilles appeared and restored the battle. A long and doubtful contest ensued between him and the son of Aurora; at length victor declared for Achilles, Memnon fell, and the Trojans fled in dismay.