Log in

View Full Version here: : NGC 7098 The Steering Wheel Galaxy


gregbradley
26-09-2021, 10:13 AM
I think this one looks like a car steering wheel hence the name from me.

Rarely imaged and I know why!

This is taking my imaging system at home to the max, with 12 inches of aperture, F3.8 and a 90% QE camera, 8 hours and 40 minutes and still not that bright or clean.

Best done from a dark site and a large scope I think and even then it would need long exposure.

I used a synthetic luminance as well on this one.

https://pbase.com/image/171993766/large regular size

https://pbase.com/image/171993766/original large size.

Greg.

multiweb
26-09-2021, 10:22 AM
That's a great result Greg. Interesting galaxy too. :thumbsup::thumbsup::thumbsup:

Ryderscope
26-09-2021, 12:08 PM
Great work Greg and definitely worth the effort as it makes for a busy and interesting field.

Startrek
26-09-2021, 01:01 PM
Greg,
Great effort to image such a small dim galaxy at mag 12 and only 4’ x 2’
Way out of my league even at my dark site
Best left for folk who have 12” to 16” apertures and focal lengths above 2000mm with plenty of clear stable nights

Well done indeed !!
Martin

gregbradley
26-09-2021, 01:27 PM
Thanks Marc. I'm always looking for a new interesting target.



Thanks Rodney.



Cheers Martin. It is pretty dim but a very interesting shape.

strongmanmike
28-09-2021, 09:34 AM
I missed this one Greg...I don't mean to sound negative but like your NGC 55 shot, this also looks a bit out of focus..or have you just had particularly bad seeing lately..? :question: or is the OTA not cooling down properly or something - maybe some tube turbulence? How are you focusing that RH? Also, there is a faint outer circular ring around the galaxy that looks like a processing effect..?

Mike

Placidus
28-09-2021, 02:54 PM
A very difficult beastie. Well done.

gregbradley
29-09-2021, 07:23 AM
Thanks Mike. Its very faint and at the ragged edge of my home imaging system.

But a very unusual shape.

Greg.