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KF5JRV > TODAY 23.09.18 14:18l 25 Lines 1086 Bytes #999 (0) @ WW
BID : 21896_KF5JRV
Read: GUEST
Subj: Today in History - Sept 23
Path: IW8PGT<IR2UBX<IW2OHX<IW0QNL<VE2PKT<N9PMO<NS2B<AB0AF<KF5JRV
Sent: 180923/1315Z 21896@KF5JRV.#NWAR.AR.USA.NA BPQ6.0.16
German astronomer Johann Gottfried Galle discovers the planet Neptune at
the Berlin Observatory.
Neptune, generally the eighth planet from the sun, was postulated by the
French astronomer Urbain-Jean-Joseph Le Verrier, who calculated the
approximate location of the planet by studying gravity-induced
disturbances in the motions of Uranus. On September 23, 1846, Le Verrier
informed Galle of his findings, and the same night Galle and his
assistant Heinrich Louis d’Arrest identified Neptune at their
observatory in Berlin. Noting its movement relative to background stars
over 24 hours confirmed that it was a planet.
The blue gas giant, which has a diameter four times that of Earth, was
named for the Roman god of the sea. It has eight known moons, of which
Triton is the largest, and a ring system containing three bright and two
dim rings. It completes an orbit of the sun once every 165 years. In
1989, the U.S. planetary spacecraft Voyager 2 was the first human
spacecraft to visit Neptune.
73 de Scott KF5JRV
Pmail: KF5JRV@KF5JRV.#NWAR.AR.USA.NA
email: KF5JRV@ICLOUD.COM
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