nice

I recommend taking longer subexposures if your mount can handle it Dirk

The KAF3200ME you are using (correct?) can handle a lot more signal than you
are getting in 90 seconds through an Halpha filter

you will get much nicer detail in the background if you do that.

For a 10" SCT even at f/6.3 you need at a minimum 3-5 hours of exposure time
if you really want to get the detail and have a smooth image.

here is one i took a few nights ago: it is 7 x 20 minutes at f/7.2 roughly


"DvandenH" wrote in message
bel.net...
HI all,
Here a quick shot of the centre of the eagle nebula.
10 x 90 sec
H-Alpha filter
10" SCT.
Homebuild CCD cam cooled to -14degr.
the sky wasn't that clear (lot of moisture which makes the stars bigger).
Will try again with more transparent sky.
Processing was done in Maxim and CS3
thanks for looking,

--
Dirk van den Herik

A journey of thousand lightyears
starts with the first step.

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