From: Milton Aupperle <milton@outcastsoft.com>

Date: March 9, 2010 9:53:44 PM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Re: Leo Galaxy NGC 2903

Hi Mark;

The one I marked as "Yours" is PGC 1547827.

The "Unknown" one is north of that and a slight bit west in the last image.

I found it and a few others using "HyperLeda" Database for physics of galaxies at:

http://leda.univ-lyon1.fr/

Using a 10 arc minute search radius and PGC 1547827 as a starting point:

http://leda.univ-lyon1.fr/fG.cgi?c=i&z=vg[,,l]&o=dss1:[B131013.4+181643,10]

you can see several faint galaxies that I picked up there. Supposedly it's "2MASX J13124494+1803399" or "SDSS J131244.92+180340.8" and here is a close up view:

http://cas.sdss.org/dr6/en/tools/explore/obj.asp?ra=198.187186&dec=18.061350

TTYL..

Milton Aupperle

On 9-Mar-10, at 8:47 PM, Mark Gaffney wrote:

Hi Milton,

I`ve added another couple of snaphots to the same folder....the first is an ST3 one which may give more details about UGC 5086..it`s set for my co-ordinates though...! In the other one I`ve found a faint blue object (which would seem to indicate it`s not a star..?) near where you`ve located your one identified as GSC 2 N1233220-1350, I think when the cursor is put upon it....Perhaps you can just see the object if you turn the Photo size to large...

Mark.

On 10/03/2010, at 1:46 PM, milton_aupperle wrote:

Hi Mark;

Thanks for the ID on UGC 5086 (or PGC 27115) near NGC 2903. Not much details on it if you search online, other than it's really faint (about Mag 15.7).

The one for M53 doesn't appear to show up in your snapshot. I marked the faint fuzzy I noticed here:

http://groups.yahoo.com/group/Astro_IIDC/files/Other/M53_Marked.jpg

as "Unknown".

You do have one showing near it, but it's below the one I was interested in and appears to be the one I marked as "Yours".

Yahoo reduces the size of all photos, so I can't identify the number in your screen snap shot.

Thanks for your help..

Milton Aupperle

--- In Astro_IIDC@yahoogroups.com, Mark Gaffney <markgaffney@...> wrote:

> Hi Milton,

> Both Voyager (which I now have the full version of-since earlier in

> the year) & ST3 Pro appear to list that fuzzy in the NGC 2903 image as

> UGC 5086 or PGC 27115. There is an object shown closer still to NGC

> 2903 though. I`m not sure exactly what you`re speaking about in the M

> 53 image but I`ll post a couple of snapshots from Voyager to

> Photos..There are a number of objects around M 53, one quite close...

> http://groups.yahoo.com/group/Astro_IIDC/photos/album/1710518579/pic/list

> HTH.. Mark.

> On 10/03/2010, at 10:27 AM, milton_aupperle wrote:

> > Hi Folks;

> >

> > Here is Leo Galaxy NGC 2903

> >

> > http://groups.yahoo.com/group/Astro_IIDC/files/DSO/NGC2903_MJA_20100305.jpg

> >

> > taken on March 5th. I managed to catch the faint sweeping arms and a

> > weak companion galaxy (well it might be a companion, or it could be

> > just a faint background galaxy too). I haven't been able to find out

> > what it is for a designation yet.

> >

> > C8 @ 1150 mm, Grasshopper, six 1x1 15 min luma frames, 3 each binned

> > 2x2 of 6 m red, 4 min green and 3 min blue with Astrodon filters.

> > Even with a Hutech IDAS LPR filter and my sky background is 16,000

> > ADU. Seeing was not really good during this period, about +/- 5 arc

> > seconds. It was better for the Eskimo nebula and then better again

> > for M64.

> >

> > I discovered my mount is now very slightly out of polar alignment,

> > so I had some field rotation issues to deal with for processing. One

> > leg of the tripod is out on a piece of brick resting on the dirt/

> > grass, so that I can view a bit higher up (80+°). The back two legs

> > are on the concrete patio:

> >

> > http://www.outcastsoft.com/AstroImages/Scope02.jpg

> >

> > Apparently when the snow melted the ground shifted a small amount

> > and threw things off. It's only a + 0.2° rotation over 105 minutes,

> > but that shifts about 6 pixels and causes a major headache for doing

> > the LRGB aligns. That's also why stars on the left side are more

> > elongate than the right side are.

> >

> > PS: There is also a small "faint fuzzy" in the M53 image I posted

> > yesterday south of the Globular Cluster. I have not found any info

> > on it, but have seen it in other older (2002) amateur images so it's

> > not something new. I'll have to re-shoot with 15 to 20 minute

> > exposure to see what it is.

> >

> > TTYL..

> >

> > Milton Aupperle

> >

Milton J. Aupperle

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