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Sep 12, Charles Messier observed the Crab Nebula and
began a catalog.
1959 The new Shane Telescope was
installed at the Lick Observatory on Mount Hamilton under director
Albert E. Whitford (d.2002 at 96). The Whitford Reddening Curve
quantified the interstellar absorption of light and helped map the
distribution of stars in the Milky Way.
(SFC, 4/4/02, p.A19)
1974 A large radio-wave emitting
structure was discovered in the galactic center of the Milky Way, a
region called the Sagittarius A complex. At its center sits a massive
black hole, Sagittarius A*, that controls the motions of the stars in
the innermost parsec of the Galaxy.
(NH, 6/03, p.53)(http://tinyurl.com/ol335c)
1994 May 5, The peak of the Eta
Aquarid meteor shower. It displayed 10-40 meteors per hour.
(PacDis, Spring/'94, p. 40)
1994 The Sagittarius Dwarf
Elliptical Galaxy (SagDEG) was recognized by astronomers as a galaxy
flying through the Milky Way.
(SFC, 2/14/98, p.A2)
1997 Apr 29, It was reported that
a monster fountain of antimatter was discovered erupting from the core
of the Milky Way. Observations from the Compton Gamma Ray Observatory
launched by NASA in 1991 made the observations since last November.
(SFC, 4/29/97, p.A5)
2000 The black hole at the center
of the Milky Way was estimated to be 120 million miles in diameter and
at least 2.5 million times more massive than our sun. Two stars, S0-1
and S0-2 were located some 60 billion miles from the black hole. The
Milky Way circled the black hole every 250 million years.
(SFC, 9/21/00, p.A7)
2011 Feb 19, Researchers estimated
that at least 50 billion planets exist in the Milky Way.
(SSFC, 2/20/11, p.A9)