Do I see a retrograde? (Same azimut, different moments). Where is
this picture made?
Thibaud
At 21:33 4-5-2014, Barry Wainwright wrote:
The BBC has a series of pictures taken by pinhole camera at
http://www.bbc.co.uk/news/in-pictures-27221895
Image 7 is described thus:
John Rigg: This is a
So . . . what is the explanation? From the angle of the tracks it looks
quite far north (or south). Can the curvature of the soup can do it? I
can't see how, whether it was vertical or horizontal.
John
-Original Message-
From: Thibaud Taudin Chabot
Sent: Monday, May 05, 2014
Here is what I think:
The can is laying on its side with its axis oriented north-south. A
pinhole is made on the west side of the can (assuming this location is in
the northern hemisphere, and that the zenith of the sun is toward the
south), pointing upward at about 45 degrees. It captures the
On 05/05/2014 14:03, Bill Gottesman wrote:
Here is what I think:
The can is laying on its side with its axis oriented north-south. A
pinhole is made on the west side of the can (assuming this location is
in the northern hemisphere, and that the zenith of the sun is toward
the south),
And a little child shall lead them.
http://www.twigsdigs.com/annex/old_nass/g_meridian.htm
Adapted from a page I made for the NASS site.
Bob
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On 05/05/2014 19:54, Robert Terwilliger
wrote:
And a little child shall lead them.
http://www.twigsdigs.com/annex/old_nass/g_meridian.htm
Adapted from a page I made for the
NASS site.
