Sunday, October 1, 2017

Astronomical Calendar: 2017 October

http://www.exploretheline.com/images/catawba.jpg
Photo of the West Virginia Historical Marker near the end of the Mason-Dixon Line Survey, about 70 miles south of Pittsburgh. America's most famous boundary line [separating Pennsylvania from Maryland & Virginia (now West Virginia)] which was produced with the assistance of Astronomy, the 250th anniversary of the conclusion of the Mason-Dixon Line Survey will be on October 18. However, the Native American guides of Astronomers Charles Mason and Jeremiah Dixon refused to enter the territory of their Indian enemies; hence the Mason-Dixon Line Survey ended about 23 miles short of their goal: the southwest corner of Pennsylvania. In 1784, Philadelphia clock-maker and Astronomer David Rittenhouse, with surveyor Andrew Ellicott, completed surveying those last 23 miles.
A celebration of this 250th anniversary will occur at the Mason-Dixon Historical Park in Core, West Virginia, during the weekend of October 14 and 15. More information on the celebration:
Link >>> http://md250.exploretheline.com/
(Image Source: Amateur Astronomer Pete Zapadka)

Astronomical Calendar for 2017 October: 
Link >>> http://buhlplanetarium4.tripod.com/astrocalendar/2017.html#oct

 Related Blog Post ---


"Astronomical Calendar: 2017 September." 2017 Sept. 1.

Link >>> https://spacewatchtower.blogspot.com/2017/09/astronomical-calendar-2017-september.html


Source: Friends of the Zeiss.
              2017 October 1.

                             Like This Post? - Please Share!

            More Astronomy & Science News - SpaceWatchtower Twitter Feed:
            Link >>> https://twitter.com/spacewatchtower

        Astronomy & Science Links: Link >>> http://buhlplanetarium.tripod.com/#sciencelinks

                Want to receive SpaceWatchtower blog posts in your in-box ?
                Send request to < spacewatchtower@planetarium.cc >.

gaw

Glenn A. Walsh, Project Director, Friends of the Zeiss: < http://buhlplanetarium.tripod.com/fotz/ >
& SpaceWatchtower Editor / Author: < http://buhlplanetarium2.tripod.com/weblog/spacewatchtower/gaw/ >
Electronic Mail - < gawalsh@planetarium.cc >
Astronomy Links: < http://buhlplanetarium.tripod.com/#astrolinks >
Science Links: < http://buhlplanetarium.tripod.com/#sciencelinks >
SpaceWatchtower Twitter News Feed: < https://twitter.com/spacewatchtower >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
LibraryWatchtower Blog: < http://librarywatchtower.blogspot.com >
TransportWatchtower Blog: < http://transportwatchtower.blogspot.com  >
South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
Barnestormin Blog: Writing, Essays, Pgh. News, etc.: < http://www.barnestormin.blogspot.com/ >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

3 comments:

  1. https://www.behance.net/gallery/46472895/_
    https://www.behance.net/gallery/46463613/_
    https://www.behance.net/gallery/46463247/_
    https://www.behance.net/gallery/46451097/_
    https://www.behance.net/gallery/46460639/_
    https://www.behance.net/gallery/46462575/_
    https://www.behance.net/gallery/46450923/_

    ReplyDelete
  2. สล็อตออนไลน์รวมเกมสล็อตไว้เยอะที่สุดของทุกค่าย
    รวมค่ายดัง เยอะที่สุดให้ท่านเลือกเล่น

    สล็อตjoker

    ReplyDelete