vdB152, B175, DeHt5 - ASA 10"N + MII G3-11000 CCD

[Konihlav]

Hi there,

 

I've had this object on my TODO shoot list for more than two years... finally I got a chance to take few subs of it. Unfortunately I had a problem with meridian flip causing rotation of the tube and therefore misalignment of the diffraction spikes (see http://www.astro.cz/galerie/v/uzivatele/Konihlav/misc/?g2_page=4 for more information if interested).

 

here's the resulting image:

 

it's 5.5hrs total (6min subs). It would be great if I could add some H-a data for the H-a stripe, but the weather doesn't allow so I have to limit my activity. Good I have F/3.6 now

 

thanks for any insights/comments

CS

Pavel

 

 

 

[tommy_h]

Hi Pavel

 

Very nice image!

 

A very strange problem you have. How can rotate the tube during the meridian flip?

 

Regards

Thomas

[Konihlav]

Hi Thomas,

 

thank you! let's say, I'm satisfied with the image in spite of the few issues - that meriflip issue is a mystery to me, but I let you know when I resolve it... (so far I decided to just image on one side of the meridian).

 

thanks

Pavel