From: Alan Friedman <alan@greatarrow.com>
Date: April 25, 2005 4:42:26 PM MDT
To: Astro_IIDC@yahoogroups.com
Subject: Re: [Astro_IIDC] Re: jupiter with moons/ 4-19-05
Hi Tim -
How long do we have to wait until Neptune gets up somewhere reasonably high on the ecliptic? 20 years or so??
We should all be really good by then!
Alan
On Apr 25, 2005, at 6:35 PM, Tim wrote:
Okay, so when is someone going to take the first amateur image of the Great Dark Spot on
Neptune? ;o) ...but don't laugh, it's about the same size as Ganymede, just dimmer.
Uranus is starting to show cloud structure, and it's almost 4" across! ;oD
-Tim.
P.S. ...still bidding on that iBot. It's climbing!
--- In Astro_IIDC@yahoogroups.com, Alan Friedman <alan@g...> wrote:
> Hi Milton -
>
> Thanks for sharing that image from Starry Night Pro. I didn't realize
> that the moons showed detail when you zoom in that close. What an
> amazing resource. My image was from 12:16am EDT on April 19th (you made
> a good guess). Here is a comparison using an enlarged version of my
> original file:
>
> http://www.geocities.com/alanfgag/ganymede_detail.jpg
>
> fun stuff!
>
> Alan
>
>
>
> On Apr 24, 2005, at 4:04 PM, Milton Aupperle wrote:
>
> > Hi Alan;
> >
> > Very nice shot.
> >
> > And that sure does look like you picked up surface detail on Ganymede
> > -
> > at least according to Starry Night Pro. I'm guessing you took that
> > image at about 12:30 ish am April 19th and here's what Ganymede
> > should
> > look like then (rotated into view)
> >
> >
> >
> > Yahoo! Groups Links
> >
> > • To visit your group on the web, go to:
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> >
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> >
> > <Ganymede.jpg>
> >
> > I'll have to think about adding the manual selection ability in to
> > Astro IIDC stacking - but it would be a lot of work.
> >
> > TTYL..
> >
> > Milton J. Aupperle
> > President
> > ASC - Aupperle Services and Contracting
> > Mac Software (Drivers, Components and Application) Specialist
> > #1005 - 815 14th Avenue. S.W.
> > Calgary Alberta Canada T2R0N5
> > 1-(403)-229-9456
> > milton@o...
> > www.outcastsoft.com
> >
> >
> >
> > On 24-Apr-05, at 1:32 PM, Alan Friedman wrote:
> >
> >>
> >>
> >> Hi all -
> >>
> >> I posted an image to the files area of Jupiter taken last Monday
> >> night a couple of hours
> >> after my recent saturn image - also using an RGB filterwheel with my
> >> DMK21BF04 (the
> >> detail comes from the red and green filtered images only). It took
> >> just over 2 minutes to
> >> capture a set of three streams - but with seeing around 5/10 only
> >> about 380 frames from
> >> 1300 were sharp enough to use for luminance.
> >>
> >> On the topic of alignment and stacking - this is a good example of
> >> why I prefer to select
> >> the alignment areas manually. This image is created from three sets
> >> of stacks aligned on
> >> the planet disk, ganymede and io. In two minutes there was little
> >> movement seen in
> >> Jupiter's features, but aligning on ganymede allowed some markings to
> >> be seen that were
> >> not visible in the images aligned using Jupiter's disk. Io shows
> >> considerable movement
> >> over two minutes and would have appeared as a short line if I hadn't
> >> processed a set of
> >> images centered on it's disk.
> >>
> >> I am really enjoying the filterwheel - with the fast response of the
> >> settings and prefs of
> >> Astro IIDC it works great even on Jupiter (it would have been
> >> hopeless to try this with my
> >> ToUcam running under BTV). I hope I'll get a shot at Jupiter in good
> >> seeing conditions.
> >>
> >> best wishes and steady skies
> >> Alan
> >>
> >>
> >>
> >>
> >>
> >>
> >> Yahoo! Groups Links
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
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