NGC 4945 Centaurus

kinetic (Steve) · #1 17-03-2009, 11:53 PM

Hi,

this just captured and processed tonight before the
seeing started to deteriorate.
Also, a dark artifact is visible at the bottom , even after
an aggressive pixel map adjustment. It may be on the lights.

My first ever capture of this quite large fuzzy with this setup.

Steve

JD2439975 (Justin) · #2 18-03-2009, 04:53 AM

Is that a Klingon Bird of Prey decloaking in the lower right corner??

skies2clear · #3 18-03-2009, 05:50 PM

No actually the remains of one after a photon torpedo hit

strongmanmike (Michael) · #4 18-03-2009, 06:05 PM

Not bad Steve

You might like to start increasing the exposure times a bit though, just to get better signal to noise ratio..?

Mike

kinetic (Steve) · #5 18-03-2009, 07:08 PM

Quote:

Originally Posted by strongmanmike

Not bad Steve

You might like to start increasing the exposure times a bit though, just to get better signal to noise ratio..?

Mike

Thanks Mike,
Hopefully I can revisit 4945 soon and get more frames in the stack.
I know a good 200-300 in good seeing drops that noise floor with
my method (highly unscientific and totally un-researched

)

Longer exposures are quite a problem as I've mentioned in previous
posts like these...hopefully I can do a set of maybe 10sec stuff
one night if I pick the night.

PS didn't realise how bad and grainy the noise in this image was until today
when I viewed the post on an LCD. (capture was viewed and posted
looking on a CRT in dome). Have to remember that!
Always a pleasure getting feedback from you Mike,
appreciated,

cheers,

Steve