About the star :

A white star on the upper right-hand corner of the chair, that the Ethiopian Queen is seated on. 

Al-Kaff, "The palm" (of the Pleiades or reaching to the Pleiades), also called Caph, Chaph, are from the Arabic title of the constellation Cassiopeia; but Al Tizini designated the star as Al Sanam al Nakah, "the Camel's Hump", referring to the contemporaneous Persian figure.

With alpha Andromedae (Alpheratz) and gamma Pegasi (Algenib), as the Three Guides, it marks the equinoctial colure, itself exceedingly close to that great circle; and, being located on the same side of the pole as is Polaris, it always affords an approximate indication of the latter's position with respect to that point. This same location, 32° from the pole, and very near to the prime meridian, has rendered it useful for marking sidereal time. When above Polaris and nearest the zenith the astronomical day begins at 0 hours, 0 minutes, and 0 seconds; when due west the sidereal time is 6 hours; when south and nearest the horizon, 12 hours, and when east, 18 hours; this celestial clock-hand thus moving on the heavenly dial contrary to the motion of the hands of our terrestrial clocks, and at but one half the speed. (Allen).

Influence of the constellaion :

Haughtiness, boastfulness, exaggerated pride and at the same time power of commanding respect. The Ethiopian Queen is associated the Hebrew letter Beth and the 2nd Tarot Trump "The High Priestess". (Robson). 

Remember, only the parallel and conjunction are important and the orb must be no more than 1 (one) degree.

General Influence of the star:

A troublemaker as concerns the fortunes of Islam. (Noonan).