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March 26, 2008

Stofler-Maurolycus-Heraclitus area - Feb 14


Subject: moon

  • english
  • italian

Hi all,

Here another lunar image from February 14. Fair seeing and transparency.

On highlights, the nice Hyginus-like appearance owned by the crater lying aside Licetus C crater. It looks like a crater caused by a ground collapse.
Also, notice the nice difference between the Stofler rough floor and the smooth Maurolycus one.

LINK

More to follow.
Thank you for your attention.





March 19, 2008

South Pole strip - Feb. 14


Subject: moon

  • english
  • italian

Hi all,

After a 4,5 months dry spell caused by weather, I could capture new stuff on last February.

Fair seeing an transparency on Feb. 14 when I captured this wide lunar south pole strip starting from Moretus - filled with shadow and a dotty central peak - ending up to those unusually bright terrains placed just southward of Hagecius crater.
A favourable libration could face us craters usually seen on the limb or behind it such as (from the left to the right) Schomberger, Scott, Amundsen, Hedervari, Demonax, Hale and much more.

As note apart, I noticed an error with the Virtual Moon Atlas software placing the terminator much westward than it appears here in my image. The VMA for that date shows me Moretus crater almost fully illuminated! Can someone explain why this incongruence?

More to follow.
Thank you for your attention.

NOTE

Christian Legrand - one of the Virtual Moon Atlas author - was kind enough to clarify the “error” noticed by myself in this image.
This software, as any else lunar simulator do, is rendering the lunar surface as a perfectly flat sphere with no irregularities at all. Thus, depressions, tall mountains and crater rims aren’t taken into account to get the true terminator out as we can see at the eyepiece at a given date. The night/day border line is thus to be considered as a theorical line which might not precisely reflect reality. This is most true in the battered lunar South Pole where the ground is all but flat!
So, we should consider this as a limit of the software, not an error as I stated a while ago.

Thanks again to mr. Legrand for his clarification!

LINK





March 17, 2008

Saturn 2008 - my unique contribute


Subject: saturn

  • english
  • italian

Hi all,

I take this opportunity to proudly introduce you the new restyling of my personal website so nicely done by my dear friend Davide Del Vento (thank you so much, Dav!) who spent his own free time in making all of this and, above all, in making me convinced this solution was the way to go!

After having missed a good opportunity of catching Mars from here in Lowres Land, the same would have happened also with Saturn if I wasn’t so brave to push myself beyond my limits!
So far, I never considered a multipoint alignment also with Saturn, neither the manual hand picking of the raw frames, neither the stacking of several images captured over different nights. But all of this was due in order to have a decent image at least for the 2008 and not to trash any single image captured on last February.
At the end, I stacked 2800 luminance frames out of 80.000 (1 out of 28, a thin 3.5% only!) captured over three nights across the opposition to put Saturn 2008 banding in a nice show.

I only hope this is the first time AND the last one as well I’m forced to do this!





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