CLAIM-134068reported
“Muscarello initially saw five powerful flashing red lights arranged along a roughly sixty-degree arc, apparently on the rim of a structure he estimated at eighty to ninety feet in diameter, though the hull itself was difficult to see.”
The UFO Encyclopedia, 3rd Edition: The Phenomenon from the Beginning
SRC-002099 · “Exeter CE1” → “Initial appearance”, PDF pp. 1127–1128