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View Full Version here: : Another Dim PN-Abell 24

Terry B
05-04-2008, 05:43 PM
Dear All
In the same vein as the very dim Abell 23 I took some frames of Abell 24
Info is:
Name: PK217+14.1

Magnitude: 13.6
Size: 4.4'x3.0'

Right ascension: 7h 52m 10s
Declination: +2° 58' 57"
Constellation: Canis Minor

This is reasonably well positioned on the northwest in the evening at present. It's pretty dim and a quite strange shape.
The image is 6x300secs with flats darks etc. Image size is 14 x 9 arcmins with my genesis CCD
leon
05-04-2008, 05:57 PM
It is a strange shape Terry but you have achieved to capture it, gee that must be faint, well done.

Leon
Terry B
05-04-2008, 06:10 PM
I'm not sure about the shape. The vertical and horizontal diffuse line is on all of the subs. A dss image attached doesn't show it so I think it must be artifact. I will have another go at it the next night I can. There is a dim galaxy in the right upper part of the image that is in the dss image.
aworley
06-04-2008, 06:50 AM
My that is interesting!! You're inspiring me to go search for it, but I doubt that I could get a picture of it from my light polluted sight.....keep em coming...
skwinty
06-04-2008, 09:42 AM
Well done Terry
You sure can get the faint fuzzies.
Oh well I will have to spend some more money before I can hunt the same quarry.:thumbsup:
sjastro
06-04-2008, 11:01 AM
Terry,

That looks like an interesting object for a deeper image. Not sure about the right angle hanging off the side however:).

How do you take your flats?

Regards

Steven
http://users.westconnect.com.au/~sjastro/small
Terry B
06-04-2008, 01:18 PM
T shirt over the front of the scope and aimed at a relatively diffuse light on the wall of my observatory. 5 sec exposures and about 7 of them.
sjastro
06-04-2008, 02:36 PM
Thanks,

I wonder if a new flat will record that artifact in the image.

Steven
Terry B
07-04-2008, 08:16 PM
I have worked out what the linear artifact is in my image. It is not the flat.
I had forgotten that to the north of my observatory is the power lines running to my house. They are reasonably low but so was this PN. They normally don't bother me but I must have imaged through the wire and with the big stretch in the image they caused the artifact.