Re: Lunar occultation of Saturn

On May 23, 10:14 am, Pete Lawrence <pete.lawrence.nos...@pbl33.co.uk>
wrote:
> On Wed, 23 May 2007 08:52:35 GMT, Philippe Gautier
>
>
>
>
>
> <Philippe.Gautiernos...@nospam.hgu.mrc.ac.uk> wrote:
> >Pete Lawrence wrote:
> >> Hi all,
>
> >> Here are a couple of sequences from the lunar occultation of Saturn
> >> that occurred on the 22nd May 2007. The reappearance sequence is a
> >> composite of a positional image (with a burned out Moon) and the lunar
> >> surface taken just seconds after Saturn emerged from occultation.
>
> >> No such composition was required for the disappearance sequence of
> >> course but it may come as a surprise that Titan was visible as well as
> >> Saturn. At mag. +8.4 I wasn't really expecting to see it with the Sun
> >> still 6 degrees up!
>
> >>http://www.digitalsky.org.uk/occulta...sappearance_se...
>
> >>http://www.digitalsky.org.uk/occulta...appearance-seq...
>
> >Beautiful!
> >I was so annoyed: everything was set up and I practiced on taking broad
> >day light pictures of Saturn with some succes. Then, I managed to miss
> >the disappearance (it went so quick!) and a few minutes before the
> >reappearance the clouds came in :-(
>
> Oh no! Philippe, that's so easy to do. A few moments before
> disappearance I decided that I didn't need the focal reducer I'd added
> into the system. To cut a long story short I had to remove various
> bits from the focusing system on my C-14 and reassemble in double
> quick time to make sure I had Saturn back in the frame. No GOTO used
> so the last thing I wanted to be doing was fiddling about as
> disappearance was lookming. Once reassembled and Saturn was back in
> the frame, I decided to try with a 2x Barlow (glutton for
> punishment!). The seeing was poor so this soon got chucked too.
>

> Reappearance was quite tense as I wasn't sure I had the right part of
> the Moon in view. Despite mentally having faith in my calculations I
> wobbled at the last minute and started panning up and down the limb.
> Quite unnecessary as it turned out!
>
> --
> Petehttp://www.digitalsky.org.uk- Hide quoted text -

That was one helluva geocentric adventure,almost left me breathless !.

At least you are safely back in your astrological context where you
can do no harm.

>
> - Show quoted text -

	#1
oriel36	Re: Lunar occultation of Saturn On May 23, 10:14 am, Pete Lawrence <pete.lawrence.nos...@pbl33.co.uk> wrote: > On Wed, 23 May 2007 08:52:35 GMT, Philippe Gautier > > > > > > <Philippe.Gautiernos...@nospam.hgu.mrc.ac.uk> wrote: > >Pete Lawrence wrote: > >> Hi all, > > >> Here are a couple of sequences from the lunar occultation of Saturn > >> that occurred on the 22nd May 2007. The reappearance sequence is a > >> composite of a positional image (with a burned out Moon) and the lunar > >> surface taken just seconds after Saturn emerged from occultation. > > >> No such composition was required for the disappearance sequence of > >> course but it may come as a surprise that Titan was visible as well as > >> Saturn. At mag. +8.4 I wasn't really expecting to see it with the Sun > >> still 6 degrees up! > > >>http://www.digitalsky.org.uk/occulta...sappearance_se... > > >>http://www.digitalsky.org.uk/occulta...appearance-seq... > > >Beautiful! > >I was so annoyed: everything was set up and I practiced on taking broad > >day light pictures of Saturn with some succes. Then, I managed to miss > >the disappearance (it went so quick!) and a few minutes before the > >reappearance the clouds came in :-( > > Oh no! Philippe, that's so easy to do. A few moments before > disappearance I decided that I didn't need the focal reducer I'd added > into the system. To cut a long story short I had to remove various > bits from the focusing system on my C-14 and reassemble in double > quick time to make sure I had Saturn back in the frame. No GOTO used > so the last thing I wanted to be doing was fiddling about as > disappearance was lookming. Once reassembled and Saturn was back in > the frame, I decided to try with a 2x Barlow (glutton for > punishment!). The seeing was poor so this soon got chucked too. > > Reappearance was quite tense as I wasn't sure I had the right part of > the Moon in view. Despite mentally having faith in my calculations I > wobbled at the last minute and started panning up and down the limb. > Quite unnecessary as it turned out! > > -- > Petehttp://www.digitalsky.org.uk- Hide quoted text - That was one helluva geocentric adventure,almost left me breathless !. At least you are safely back in your astrological context where you can do no harm. > > - Show quoted text -