About this star:

In the stinger of the Scorpion Scorpius. A companion cluster to Acumen.

The Akkadians called Scorpio, Girtab, the "Seizer", or "Stinger", and the Place where One Bows Down, titles indicative of the creature's dangerous character; and referring to the striking curve of stars which lies in a dark portion of the Milky Way that forms the tail of the Scorpion, terminating in the poisonous upturned stinger, as if ready for an attack. (Allen).

Influence of the constellation:

The Scorpion is associated with the Hebrew letter Oin and the 16th Tarot Trump "The Lightning-Struck Tower". (Robson).

Influence of the star:

It effects the eyesight and causes blindness of one or both eyes if in conjunction with an afflicted luminary, or in conjunction with a malefic that afflicts the luminaries. The opposition seems to be equally effective. (Robson).

This star along with Acumen has a notorious reputation in astrology as 'blind stars' or stars associated with eyesight problems. These stars shows up a negative Mars-Moon quality in people who have them poorly aspected, with a tendency towards a morbid outlook, seeing the worst rather than the best in everything. If their religious views are affected, as so often with anything in Sagittarius, there is a tendency to be either the 'hellfire and damnation brigade' or to take up a fierce anti-religious and even anti-God stance. But at their best, well aspected, they can have very sharp minds and a perception well above average as though, perhaps 'blind' to what we see and take for granted, they see what we do not, at levels where eyesight does not reach. Not for nothing has the word Acumen come down to us as a term for a sharp mind. (Dr. Eric Morse).