ASTRO: NGC 5985, 5982, 5981

The well known galaxy trio in Draco was my second target for my recent
outing to good skies a bit northwest of Berlin.
Stars look strange in the right half of the picture, as if something was
protruding into the lightpath.
Colour version will follow.

Taken with a 10" Meade ACF at f/5.7 on a G11 mount, SXV-H9 camera, 13x5
minutes.

The picture can also be found at
http://ccd-astronomy.de/temp/5985-13x5gut.jpg

Stefan

Impressive Stefan !
nice work.

--
Dirk

"Stefan Lilge" wrote in message
...
The well known galaxy trio in Draco was my second target for my recent
outing to good skies a bit northwest of Berlin.
Stars look strange in the right half of the picture, as if something was
protruding into the lightpath.
Colour version will follow.

Taken with a 10" Meade ACF at f/5.7 on a G11 mount, SXV-H9 camera, 13x5
minutes.

The picture can also be found at
http://ccd-astronomy.de/temp/5985-13x5gut.jpg

Stefan

Stefan Lilge wrote:

The well known galaxy trio in Draco was my second target for my recent
outing to good skies a bit northwest of Berlin.
Stars look strange in the right half of the picture, as if something was
protruding into the lightpath.
Colour version will follow.

Taken with a 10" Meade ACF at f/5.7 on a G11 mount, SXV-H9 camera, 13x5
minutes.

The picture can also be found at
http://ccd-astronomy.de/temp/5985-13x5gut.jpg

Stefan


Even with the funny stars there's more detail in all the galaxies than
any of the earlier versions of this trio you've taken that I have archived.

I was going to suggest a tilted camera as the cause. Though I see no
sign of it in your other image from the trip and I'd expect it to show
there as well. When I used the Meade electric focuser that couldn't
support the weight of my camera I'd get that type of star in one corner
or side of the frame depending on camera orientation relative to the
earth.

Collimation error can do that as well though again there's no sign in
the earlier image. In all my other imaging scopes I've owned over the
last 45 years bad collimation hurt the whole image. This scope is
different. Bad collimation just moves the corrected field to one side
or the other but stars look different in the bad part of the field in
that they are sharp edged on the side away from the good field and fuzzy
on the side toward the good part. I don't see that here.

So maybe there was some tree branch though you are working quite high in
the sky so that wouldn't seem likely. Odd.

Hope you find the source.

Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

The spiral looks great... sure is a nice one.

--
Regards, Doug W.
www.photonsfate.com
"Stefan Lilge" wrote in message
...
The well known galaxy trio in Draco was my second target for my recent
outing to good skies a bit northwest of Berlin.
Stars look strange in the right half of the picture, as if something was
protruding into the lightpath.
Colour version will follow.

Taken with a 10" Meade ACF at f/5.7 on a G11 mount, SXV-H9 camera, 13x5
minutes.

The picture can also be found at
http://ccd-astronomy.de/temp/5985-13x5gut.jpg

Stefan

Great image Stefan! I had these on the chip last night but, the moon was
too bright.


John N. Gretchen III
N5JNG NCS304
http://www.tisd.net/~jng3