Difference between revisions of "February 4, 2012"
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<em>image by [mailto:mwirths@starband.net Mike Wirths], Baja California, Mexico</em><br /> | <em>image by [mailto:mwirths@starband.net Mike Wirths], Baja California, Mexico</em><br /> | ||
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| − | Rilles that run east to west usually aren't very visible because there aren't shadows cast filling their floors. | + | Rilles that run east to west usually aren't very visible because there aren't shadows cast filling their floors. |
| − | According to Mike there is lively debate in some forums about what it takes to see this elusive Sheepshanks | + | According to Mike there is lively debate in some forums about what it takes to see this elusive Sheepshanks |
| − | Rille. Well, Mike's 18" does a good job, as did Paolo Lazzarotti's 10" [http://www.lpod.org/archive/LPOD-2005-02-13.htm telescope]. The rille runs through an | + | Rille. Well, Mike's 18" does a good job, as did Paolo Lazzarotti's 10" [http://www.lpod.org/archive/LPOD-2005-02-13.htm telescope]. The rille runs through an |
| − | older lava - compare with the younger, smoother, more mare ridged in the south half of the image. Whatever | + | older lava - compare with the younger, smoother, more mare ridged in the south half of the image. Whatever |
| − | the force was that led to formation of the Sheepshank's and smaller [https://lpod.wikispaces.com/May+14%2C+2010 nearby rilles], it was apparently not | + | the force was that led to formation of the Sheepshank's and smaller [https://lpod.wikispaces.com/May+14%2C+2010 nearby rilles], it was apparently not |
| − | operating when the new lavas were deposited because no small rilles cut them. | + | operating when the new lavas were deposited because no small rilles cut them. |
<br /> | <br /> | ||
<em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | <em>[mailto:tychocrater@yahoo.com Chuck Wood]</em><br /> | ||
Revision as of 11:07, 14 March 2015
A Holy Grail?
image by Mike Wirths, Baja California, Mexico
Rilles that run east to west usually aren't very visible because there aren't shadows cast filling their floors.
According to Mike there is lively debate in some forums about what it takes to see this elusive Sheepshanks
Rille. Well, Mike's 18" does a good job, as did Paolo Lazzarotti's 10" telescope. The rille runs through an
older lava - compare with the younger, smoother, more mare ridged in the south half of the image. Whatever
the force was that led to formation of the Sheepshank's and smaller nearby rilles, it was apparently not
operating when the new lavas were deposited because no small rilles cut them.
Chuck Wood
Technical Details
Jan 29, 2012. 18" Starmaster dob (Zambuto optics) a Lumenera Infinity 2-2 camera, 4X's televue Powermate barlow, an R/IR filter. Processed with AviStack and PS CS.
Related Links
Rükl plate 5
Yesterday's LPOD: Looking Poleward
Tomorrow's LPOD: The Best Ever
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