[Leica] IMG: 6 inch reflector

[Jayanand Govindaraj]

Stunning stuff!
Cheers
Jayanand

On Mon, Dec 21, 2020 at 8:35 PM Howard Ritter via LUG <lug at leica-users.org>
wrote:

> Hi, Peter—
>
> The images are single exposures. Since posting them, I’ve learned how to
> stack multiple images of the same field to improve S/N and reduce color
> noise and granularity. It makes a huge difference!
>
> I’ve just posted <
> http://gallery.leica-users.org/v/hlritter/Nikon+Astro/?g2_fromNavId=x98ac3343>
> a stacked version of the same Orion field as well as a stack of frames
> taken through a narrower emission-line filter. The latter I think is my
> preference.
>
>
> http://gallery.leica-users.org/v/hlritter/Nikon+Astro/?g2_fromNavId=x98ac3343
> <
> http://gallery.leica-users.org/v/hlritter/Nikon+Astro/?g2_fromNavId=x98ac3343
> >
>
> —howard
>
> > On Dec20, 2020, at 1250, Peter Dzwig <pdzwig at summaventures.com> wrote:
> >
> > Howard,
> >
> > are those single shots, or did you stack them? The one of the Orion
> > nebula is particularly fine.
> >
> > Peter
> >
> > On 19/12/2020 21:38, Howard Ritter via LUG wrote:
> >> Congratulations, Douglas. A first astronomical telescope is a memorable
> and possibly fateful thing, potentially a trap as dangerous as a first
> camera. With me it went the other way: At about age 10, my parents got me
> an Edmund Scientific 3” reflector, and this was enough to launch me on a
> lifelong hobby. I got my hands on a camera at about the same age. It’s a
> tossup which hobby has consumed more of my time as well as money! The apex
> was a 25” Dobsonian (I’ve downsized to a mere 20” now, plus a 6” refractor
> and a pair of 100mm astronomical binoculars.)
> >>
> >> The Dobsonian format is the ideal one for a neophyte, and a 6” aperture
> will show you wonders. I recommend getting a guide to the Messier objects,
> of which many look great in 6” of aperture, as I know firsthand. And you
> won’t need to be told to point your scope at the Moon! Dobson was a
> creative genius and the patron saint of amateur observers around the world,
> a tireless advocate of astronomy on the cheap for the masses.
> >>
> >> Good luck with the weather next Monday. Ours in Florida looks
> unfavorable. Because of that, I took the time to get a picture of the pair
> last night, when they were still 4 times as far apart as they will be on
> the 21st. After moonset, be sure to have a look at the Northern
> Hemisphere’s deep-sky (as opposed to Moon and planets) showpiece, the Orion
> Nebula. If you don’t have dark surroundings, take a dark cloth or hoodie to
> shut out all extraneous light as you look at the nebula and so you can keep
> both eyes open while you look. Start with an eyepiece that will give you
> about 50x.
> >>
> >> I put my images of Jupiter and Saturn, as well as the Orion Nebula, on
> the Gallery here <http://gallery.leica-users.org/v/hlritter/Nikon+Astro/>.
> >>
> >> http://gallery.leica-users.org/v/hlritter/Nikon+Astro/ <
> http://gallery.leica-users.org/v/hlritter/Nikon+Astro/>
> >>
> >> —howard
> >>
> >>> On Dec19, 2020, at 1326, Douglas Barry <imra at iol.ie> wrote:
> >>>
> >>> This is the telescope I got recently as a birthday present from my
> sons. It works extremely well, even in light polluted suburbia. I haven't
> taken it out to darker skies yet due to the pandemic.
> >>>
> >>>
> http://gallery.leica-users.org/v/DouglasBray/Sky+Quest+Dobsonian.jpg.html
> >>>
> >>> With the conjunction of Jupiter and Saturn coming up on Monday, I hope
> it won't be too cloudy so that I can use this. It's pretty good for a 6
> inch, but with my back bothering me at the moment, I could with lightening
> the Dobsonian base a bit without sacrificing stability. Maturer years don't
> like heavy weights.
> >>>
> >>> By the way, if you would like some marvellously therapeutic viewing
> have a look at the great John Dobson making a reflector telescope by hand,
> including hand grinding and polishing the 16 inch mirror.
> >>> https://www.youtube.com/watch?v=snz7JJlSZvw
> >>>
> >>> Douglas
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> Leica Users Group.
> >>> See http://leica-users.org/mailman/listinfo/lug for more information
> >>
> >>
> >> _______________________________________________
> >> Leica Users Group.
> >> See http://leica-users.org/mailman/listinfo/lug for more information
> >>
> >
> > --
> >
> > Dr. Peter Dzwig
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
>
>
> _______________________________________________
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