NGC 4725 and NGC 4712 !

[alexandre]

Hello has all.
Here is an image of NGC 4725 and his friend NGC 4712.
There is a reflection of the primary mirror on my image?
I do not think has a probleme of flats, because I am good has 34000 ADU??
Date Imaged / 3 and 7 april 2013
Lens / C9 at f/10
CCD / QSI 540 WSG
Baader filter , Exposure / L = 30 x 600 SEC
Mount / AP1200
Sandro Observatory (Parisian suburb) .

http://img15.hostingpics.net/pics/248962NGC4725etNGC4712FIN.jpg

bye!
@lex:)

[strongmanmike]

Some excellent detail in there Alex

Not sure what is going on with the image brightness issues..? How are you doing your flat frames?

Awesome mount you have there too :thumbsup:

MIke

[alexandre]

Thank you Mike !!
For flat field I use a bright ecran.
Nevertheless by looking at the analysis of CCDInpector , The result would have been able to be much better!! !!

http://img11.hostingpics.net/pics/244382analyseCCDIsurNGC4725.jpg

@lex

[gregbradley]

A great image. It looks like that main galaxy is gravity influenced by that other galaxy.

Greg.

[alexandre]

It's possible ,but i'm not calified for that !!
thank Greg !

@lex;)