ASTRO: B 173 in Cepheus

8" f5 Newtonian reflector
Camera: ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm
DL 4.56
Image: Lumicon Red filter, 710 minutes (71 x 10 minute subs),
08/7/8/9/2009; seeing 2.3-3.2 FWHM per CCDStack
Processing: CCDStack 1.6.0.4, Photoshop 7.0
Location:Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m
29s -118h 52m 20s)

-- Marty

Martin C Germano
email:
Web - film: http://martingermano.com/Film/index.html
ccd: http://martingermano.com

Has very much the look of your 2415 images! So you are imaging from
your home rather than traveling as you used to? CCD does have that
advantage. I gave up traveling when arthritis made it too painful. Then
retired to a dark site. At least I can work from inside now. No more
feeding the mosquitoes or suffering frostbite.

Why the red filter?

I've never had the patience (or clear skies) to put that much time into
one image. I've got a lot of your old Barnard dark nebula on my hard
drive. You running the 8" on the same mount you used for the 14.5.
Trying to recall what it was. Blue head is all I can recall.

Your FOV works out, if I did the math right at about 46.5x31 minutes. A
bit wider than my 33.7x22.5. Still if I ever get off my Arp kick I'll
have to give these smaller ones a try. Though with only 4 subs for lum
data they might not stand out so well!

Keep those images coming.



Martin C Germano wrote:
8" f5 Newtonian reflector
Camera: ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm
DL 4.56
Image: Lumicon Red filter, 710 minutes (71 x 10 minute subs),
08/7/8/9/2009; seeing 2.3-3.2 FWHM per CCDStack
Processing: CCDStack 1.6.0.4, Photoshop 7.0
Location:Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m
29s -118h 52m 20s)

-- Marty

Martin C Germano
email:
Web - film: http://martingermano.com/Film/index.html
ccd: http://martingermano.com

Martin,

I see you are still going for the elusive stuff (no wonder as you probably
have imaged all "standard" object at least five times). Great shooting, I
like to see "new" objects. 71x10 minutes is quite impressive.

Stefan

"Martin C Germano" schrieb im Newsbeitrag
...
8" f5 Newtonian reflector
Camera: ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm
DL 4.56
Image: Lumicon Red filter, 710 minutes (71 x 10 minute subs),
08/7/8/9/2009; seeing 2.3-3.2 FWHM per CCDStack
Processing: CCDStack 1.6.0.4, Photoshop 7.0
Location:Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m
29s -118h 52m 20s)

-- Marty

Martin C Germano
email:
Web - film: http://martingermano.com/Film/index.html
ccd: http://martingermano.com

Nice work Marty! good to hear from you

Martin C Germano wrote:
8" f5 Newtonian reflector
Camera: ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm
DL 4.56
Image: Lumicon Red filter, 710 minutes (71 x 10 minute subs),
08/7/8/9/2009; seeing 2.3-3.2 FWHM per CCDStack
Processing: CCDStack 1.6.0.4, Photoshop 7.0
Location:Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m
29s -118h 52m 20s)

-- Marty

Martin C Germano
email:
Web - film: http://martingermano.com/Film/index.html
ccd: http://martingermano.com




--
John N. Gretchen III
http://www.tisd.net/~jng3

Thanks Rick, John, Stefan.

Rick also asked about the times (length) of the exposure ... I guess Rick
has betters skies, I have better weather g.

I can image almost every night. Right now I'm up to 14 subs per workday
weeknight. Puts me in the sack a bit after 11:00PM. My background counts on
the *best* moonless nights are a bit over 3000; on a decent near full moon
night 8-9000. Ten minute subs with a red filter.

What I have found through trial and error (lots of error), is that the more
subs I take, the better the image ... I still have a problem with my drive
corrector momentarily losing power (compromising that sub), lots of air
traffic resulting in multiple (usually) subs with trails, etc.

So I'll post another from the same time period as B 173 ... shot in the same
part of the sky with lots of moon ...

-- Marty

Martin C Germano
email:
Web - film: http://martingermano.com/Film/index.html
ccd: http://martingermano.com
"Stefan Lilge" wrote in message
...
Martin,

I see you are still going for the elusive stuff (no wonder as you probably
have imaged all "standard" object at least five times). Great shooting, I
like to see "new" objects. 71x10 minutes is quite impressive.

nice one Marty

Good to see you posting again!

"Martin C Germano" wrote in message
...
8" f5 Newtonian reflector
Camera: ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm
DL 4.56
Image: Lumicon Red filter, 710 minutes (71 x 10 minute subs),
08/7/8/9/2009; seeing 2.3-3.2 FWHM per CCDStack
Processing: CCDStack 1.6.0.4, Photoshop 7.0
Location:Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m
29s -118h 52m 20s)

-- Marty

Martin C Germano
email:
Web - film: http://martingermano.com/Film/index.html
ccd: http://martingermano.com