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Re: [APML]: New Photos from 10/12/96 - That's it for this Month
Chuck Vaughn wrote:
>
>
> Less than ideal conditions due to smoke from the Big Sur fire led
> me to break out the big lens and the H-alpha interference filter.
> I haven't used the lens for a couple of years except for Comet
> Hyakutake.
>
> The main goal of the night was to photograph S147 with the H-alpha
> interference which I had never tried. In order to make use of the
> rest of the night I re-photographed a couple of objects that I had
> previously done with the Lumicon colored galss H-alpha filter.
>
> Here are the results on my Astrohoto page:
>
> http://www.aa6g.org/Astronomy/astrophotos.html
>
> NGC 7822/Cedarblad 214 was intended to be a 2 hour exposure but I
> thought an airplane flew through it at the 90 minute mark. There
> is what looks like a satellite through it but faint. I don't know
> if the filter cut most of it out or it really didn't fly through it.
> This is the best photo of the three and better than my previous
> attempts at this object.
>
> IC1795/1805/1848 is one of those photos I've done several times and
> never been able to get perfect focus. This is pretty much the same
> but it has very high contrast because of the filter. You may not be
> able to tell on the low res scan that focus could be improved.
>
> S147 is unfortunately the worst of three. It recorded about as well
> as that object does but somehow I blew the focus. It shows up as not
> round stars over most of the field but good in a portion of the field
> and it's not field rotation.
>
> I'll leave these up for a while along with the Ritchey photos from
> last week then delete all except the best ones.
>
> Chuck Vaughn <aa6g@aa6g.org>
Hi friend Chuck,
i saw your images that are, as usual, fantastic.
About IC 1795 & friends that in italy is more known as Melotte 15
I like very much the part below left that looks in your photo exactely
as a kitten laying on its back in the act of playing.
the protuding part on the upper right remembers something else, that
I can not mention here...
About Simeis 147 why you dont' display it (also) as negative, it looks
much more impressive.
--
--
Regards, Alfredo Zanazzo ( alferd@mbox.lol.it )
Professional home pages: http://www.lol.it/aziende/music/zanazzo
Astronomy home pages: (Off/axis guider-camera project):
http://www.lol.it/~alferd
Concentric Schmidt Cassegrain photos:
http://www.lol.it/~alferd/astropag.htm