An eminent English Theosophist, Sepharial was a well-known and respected astrologer in the late 19th and early 20th centuries and wrote numerous books, some of which are still highly regarded in some circles today.
[1] Sepharial became an influential author in the fields of the occult, astrology and numerology, and his writings had a considerable impact on Alfred H. Barley [d] and Alan Leo, who he introduced to Theosophy.
He can be credited as the first astrologer to use Waltemath earth's hypothetical natural satellite in his calculations.
Since he considered it to be black enough to be invisible most of the time he call it "dark moon" Lilith.
[2] Many of his books and other works were put together in a rather slapdash way,[clarification needed] which made his reputation less enduring than it might have been.