GUM25 Nebula

[EzyStyles (Eric)]

Hi Guys,

Not much reference i can find with gum25, i just found abit of neb using starry night so decided to just give it a go. was taken last week 10 x 7 minutes expo at ISO 400. Looks abit like a crab without its claws and legs? *shrugs*


Hi Res here:

http://www.ezystyles.com.au/gallery2..._itemId=452173

Cheers

[Karlsson]

Originally Posted by EzyStyles

Not much reference i can find with gum25

Eric,

In many listings Gum 25 and Gum 35 are mixed up - no idea as to why (the SAC may know more....)

What you have shot here is indeed Gum 25 aka RCW 40 - the small neb to the lower left is RCW 39 , and the cluster at upper left is Markarian 18.

By coincidence I had a look at this a few days ago - saw a faint spit and decided this is not Big City material. So I'm glad that you show me what I would have seen, if....

[Tamtarn]

Very unusual Eric, it does look a little like a crab and the other neb could well be a lobster.

[Ric]

Great looking nebula and luster as well Eric, I agree with Barb & Dave there is a little lobster lurking at the bottom.

Quite a fascinating image, well done.

[glenc (Glen)]

Magnificent and very clear image Eric.
Gum25 = RCW40 is about 7' across.

Here is a description of Gum 25 from: "Astronomy of the Milky Way" By Mike Inglis
http://books.google.com.au/books?id=...q5OwRjKUXxJJ9Q
http://web.mac.com/mdiastro/mikeingl...lications.html

Dunlop found the cluster D430 = Collinder 205 = Mrk18 (top right) in 1826.
He described it as: "A group of very small stars of mixed magnitudes, irregular figure, about 3' diameter."
John Herschel failed to see it, hence it is not in the NGC. Collinder and Markarian thought they found it but the credit should go to Dunlop.
http://www.univie.ac.at/webda/cgi-bi...?dirname=cr205

[EzyStyles (Eric)]

Originally Posted by Karlsson

Eric,

In many listings Gum 25 and Gum 35 are mixed up - no idea as to why (the SAC may know more....)

What you have shot here is indeed Gum 25 aka RCW 40 - the small neb to the lower left is RCW 39 , and the cluster at upper left is Markarian 18.

By coincidence I had a look at this a few days ago - saw a faint spit and decided this is not Big City material. So I'm glad that you show me what I would have seen, if....

Thanks for the info. I had to do test run shots just to find this object as its not listed in my goto handset. now i know it is called RCW40. Yes, not an object for the city people at all.

Originally Posted by Ric

Great looking nebula and luster as well Eric, I agree with Barb & Dave there is a little lobster lurking at the bottom.

Quite a fascinating image, well done.

Thanks Ric. probably because of the surface texture looks like a lobster? now im getting hungry

Originally Posted by glenc

Magnificent and very clear image Eric.
Gum25 = RCW40 is about 7' across.

Here is a description of Gum 25 from: "Astronomy of the Milky Way" By Mike Inglis
http://books.google.com.au/books?id=...q5OwRjKUXxJJ9Q
http://web.mac.com/mdiastro/mikeingl...lications.html

Dunlop found the cluster D430 = Collinder 205 = Mrk18 (top right) in 1826.
He described it as: "A group of very small stars of mixed magnitudes, irregular figure, about 3' diameter."
John Herschel failed to see it, hence it is not in the NGC. Collinder and Markarian thought they found it but the credit should go to Dunlop.
http://www.univie.ac.at/webda/cgi-bi...?dirname=cr205

Thanks for the informative info glen. you seem to always find the good info's on objects. i can't find anything thanks again.

Originally Posted by Tamtarn

Very unusual Eric, it does look a little like a crab and the other neb could well be a lobster.

LOL thanks guys. yes it certainly does. it looks like the crab body without its legs and claws.

ive attached a picture of it