(A), in theatrical language, means a popular actor.
(in Christian art). St. Bruno bears one on his breast; St. Dominic, St. Humbert, St. Peter of Alcantare, one over their head, or on their forehead, etc.
The ensign of knightly rank. A star of some form constitutes part of the insignia of every order of knight-hood.
His star is in the ascendant.
He is in luck's way; said of a person to whom some good fortune has fallen and who is very prosperous. According to astrology, those leading stars which are above the horizon at a person's birth influence his life and fortune; when those stars are in the ascendant, he is strong, healthy, and lucky; but when they are depressed below the horizon, his stars do not shine on him, he is in the shade and subject to ill-fortune.
“The star of Richelieu was still in the ascendant.” —St. Simon.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894