March 21 marks "Galactic Tick Day," which celebrates our Solar System's travel around the Milky Way Galaxy; it takes 230 million years for our Solar System to make one revolution around the Milky Way. The Galactic Tick Day occurs once every 1.7361 years, marking each 1 centi-arc-second of travel (i.e. "tick") in this trek. More Information: Link >>> http://galactictick.com/
This image from the Hubble Space Telescope is of Galaxy UGC 12158, a spiral galaxy which is thought to resemble our Milky Way Galaxy in appearance. (Image Sources: NASA, European Space Agency, Wikipedia.org, By ESA/Hubble & NASA - http://www.spacetelescope.org/images/potw1035a/, Public Domain, https://commons.wikimedia.org/w/index.php?curid=12385417)
Astronomical Calendar for 2020 March ---
Link >>> http://buhlplanetarium4.tripod.com/astrocalendar/2020.html#mar
Related Blog Post ---
"Astro-Calendar: 2020 Feb. / Once-in-Century Palindrome: Feb. 2"
Saturday, 2020 February 1.
Source: Friends of the Zeiss.
Monday, 2020 March 2.
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Formerly Astronomical Observatory Coordinator & Planetarium Lecturer, original Buhl Planetarium & Institute of Popular Science (a.k.a. Buhl Science Center), Pittsburgh's science & technology museum from 1939 to 1991.
Formerly Trustee, Andrew Carnegie Free Library and Music Hall, Pittsburgh suburb of Carnegie, Pennsylvania.
Author of History Web Sites on the Internet --
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* Andrew Carnegie & Carnegie Libraries: