DS1 is a large faint planetary in Vela discovered by John Drilling in 1981 and very little observed or imaged since. This one is very different from my previous posting of Abell 24. Abell 24 had very little OIII so was predominantly red. DS1 is strong in OIII and therefore appears blue green. There appears to be some faint Ha nebulosity in the field.
The data for this one was more difficult to obtain than usual thanks to Microsoft and their lousy Windows 10 updates.
A well done image of an obscure object. Its a nice teal colour!
Greg.
Quote:
Originally Posted by RickS
Another rare one, Steve!
Thanks guys. As it happens I just did a minor tweak of the colour balance to what I think is slightly more accurate. I usually rely on checking the colour balance of my image against an existing image but there usually isn't an existing image of these obscure things.
A most intriguing planetary nebula Steve. If you hadn't told us it was a PN, I'd have thought it was a bona fides Cookie Monster.
The galaxy adds much visual interest.
Glad you're doing all these super-difficult ones. Means we get to see them.
Best,
Mike
Thanks M&T. It took me a few attempts to get the colour right but it wasn't that difficult. I think some people get put off when an object doesn't have a NGC or IC designation when in actual fact these objects can be quite easy. A case in point is the globular cluster Palomar 8 which is actually reasonably bright.
Forgot to mention that the Cookie Monster's cookie is the little galaxy. The huge dark cavity or void toward top left is the monster's open mouth. That void is to me quite inexplicable. Would love to know what mechanism was responsible for its formation.
Forgot to mention that the Cookie Monster's cookie is the little galaxy. The huge dark cavity or void toward top left is the monster's open mouth. That void is to me quite inexplicable. Would love to know what mechanism was responsible for its formation.
Mike
Normally I'm not good at seeing resemblance of objects to other things but I do see the Cookie monster in this one. No idea what caused the void. I think one of the difficulties in understanding the origin of shapes is that we only see these things in two dimensions.
