THE FAMOUS ROYAL ASTRONOMER OF GREENWICH
GEORGE BIDDELL AIRY (1801-92) SIGNED CARD, “G. B. Airy”, on a card 5 x 1.5, removed from a document with partial printing of “Your very obedient Servant,” and sent to “The Master of Trinity”[referring to the person running Trinity College Cambridge], by the English mathematician and astronomer who was the Astronomer Royal (1835-81) who established Greenwich as the prime meridian [in a geographic coordinate system where longitude is defined to be 0 degrees]. In 1828 he was elected Plumian Professor of Astronomy and director of the new Cambridge Observatory. Airy’s writings during this time at Cambridge are divided between mathematical physics and astronomy. He was elected president of the Royal Astronomical Society four times. In fine condition, with minor age toning.