Timeline Neptune

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If the Sun were a pumpkin one foot in diameter, Neptune would be a plum about 3225 feet away. Neptune circles the sun every 164.785 Earth years.
    (SFEC, 4/30/00, Par p.9)(SFC, 12/9/00, p.B3)

1613        Jan 28, Galileo may have unknowingly viewed the undiscovered planet Neptune.
    (MC, 1/28/02)

1811        Mar 11, Urbain Jean Joseph le Verrier, co-discoverer (Neptune), was born.
    (MC, 3/12/02)

1846        Sep 23, The planet Neptune was discovered by German astronomer Johann Gottfried Galle. Neptune was discovered after John Couch Adams of England and Urbain Jean Leverrier of France independently figured out where it should be.
    (HFA, ‘96, p.38)(AP, 9/23/97)(SFEC, 5/30/99, Par p.13)(ON, 9/01, p.9)

1846        Oct 10, Neptune's moon Triton was discovered by William Lassell. [see Sep 23]
    (MC, 10/10/01)

1979        Jan 21, Neptune became the outermost planet as Pluto moved closer due to their highly elliptical orbits.

1983        Jun 13, The US space probe Pioneer 10, launched in 1972, became the first spacecraft to leave the solar system as it crossed the orbit of Neptune.
    (AP, 6/13/97)(HN, 6/13/98)

1989        Aug 2, NASA confirmed Voyager 2's discovery of 3 more moons of  Neptune designated temporarily 1989 N2 (Larissa), 1989 N3 (Despina) and 1989 N4 (Galatea).

1989        Aug 21, The US space probe Voyager 2 fired its thrusters to bring it closer to Neptune's mysterious moon Triton.
    (AP, 8/21/99)

1989        Aug 24, Voyager II passed within three thousand miles of Neptune sending back striking photographs.
    (V.D.-H.K.p.388)(AP, 8/24/99)

1989        Aug 25, NASA scientists received stuning photographs of Neptune and its moons from Voyager 2.
    (HN, 8/25/98)

1989        Aug 27, Chuck Berry performed his tune Johnny B. Goode for NASA staff in celebration of Voyager II's encounter with the planet Neptune.
    (HN, 8/27/98)

1989        Nov 12, A triple conjunction of Neptune and Saturn took place.

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