Ancient Remnants - RCW114

[Andy01]

RCW114 in HaRGB, from Melbourne.

Poking around in Galaxy map, I came across this huge but very faint nebula that is rarely if ever photographed by amateurs. :eyepop:

It was originally thought to be a ring nebula surrounding the Wolf-Rayet star WR 90, expanding into a pre-existing cavity created by the supernova remnant 343.0-06.0. However, current research suggests that is much closer to us than WR90, so is an Ancient SNR in it's own right.

It's big (and dim) too, this is only 1/4 of the region in the FOV - maybe another mosaic required! :D

It's an awesome looking target, but rarely (if ever) photographed in colour. I love the glob at top left too :)

I scoured the web but could only find references to two images, one here on IIS by DVJ and one on Astrobin by John Gleason.

For the curious it's located next to Sargas in Scorpius, 345.07, -6.445

Big one HERE (http://www.astrobin.com/full/300110/0/)

7 hrs Ha3nm - 1800sec subs - could do with a lot more data too
8x600sec subs RG&B

Taken from my light polluted suburban backyard in Melbourne, Australia.

[Placidus]

That's just awesome Andy. Great detective work. :eyepop:

How wide is your field?

[gregbradley]

Very nice Andy and great to see a new target for us to image.
I've noticed a few Ha areas in my own wide angle lens Milky Way images they don't seem to get imaged as well.

I also wonder if there is significant O111 for this target as SNR seem to have a lot of O111. Worth checking if you haven't already.

Greg.

[strongmanmike]

That looks rather striking Andy :) I have seen this one before but you are right, hardly ever imaged, actually I didn't recognise it at first until I did a quick google and saw a few wide shots. The dramatic twisted nature of the filaments is a little reminiscent of parts of the Vela SNR (http://www.pbase.com/strongmanmike2002/image/148304355/original), nice work on a difficult target and I'm liking your more recent processing too ;) the arty composition look works well here too :thumbsup:.

Mike

[multiweb]

Looks great Andy. Good star profiles and colors. Nicely processed. :thumbsup:

[Andy01]

Cheers M&T, glad you liked it :thumbsup:
It's fun to search out something new - There's so much more to photograph than M42 etc. and it's exiting navigating unchartered waters!

My FOV is 3.07 x 2.39



You're most welcome Greg, it would be a crackerjack target for your Honders. :thumbsup:

John's reference posted that "there is little if any OIII in this object, and SII is nearly non-existent based on spectroscopic studies of individual filaments."

I had planned to get some N2 data to try bicolour, but clouds rolled in... :sadeyes:



Thanks heaps Mike :D

Yes, these SNR's are very cool targets imo - this one's well worth a crack when you get your Tak widefield on.

Thanks for comment re: processing too :D - I was pleasantly surprised that the same technique used on my last HaRGB image under dark skies worked out well under LP at home.

I must also acknowledge Peter Ward for a few tips on imaging RGB under LP, cheers. :thumbsup:



Cheers Marc, some French guy sent me a few tips on processing, seems that they were useful :D

Merci Beaucoup :thanx:

[topheart]

Wow!


Spectacular!
I love the processing....

A new target for us to have a go at....Thanks!!

Cheers,
Tim

[RickS]

Nice work and a striking target, Andy!

[Octane]

What a corker! Must have a look for this when I get home. :)

btw,dvj = Mr Gleason. :)

H

[Andy01]

Thanks very much Tim - sure why not go for it! :thumbsup:



Cheers Rick - a bit off the beaten track. Some of the most interesting Deep space objects are rarely imaged by us amateurs! :D



Cheers H, This would suit your FOV well I suspect. :)
I too suspected they might be the same person, but didn't want to make assumptions. ;)

BTW, the Glob at the top left is NGC 6388 - here (https://www.spacetelescope.org/images/heic1221c/) is an article about it with amazing Hubble and ESO photos.

[Stevec35]

That's beautiful Andy! One of your very best I think.

Cheers

Steve

[graham.hobart]

Looks like cosmic velvet drapes and the glob reminds me of a theatre spot light- it's an amazing view. Thanks Andy for this one!!
Graham

[Andy01]

Hey Steve, thanks for the feedback, delighted that you like it too!
There's some amazing stuff out there patiently waiting it's turn to be photographed :)




Cheers Graham, I like your theatrical reference very much - Paradolia wins again!
You can take a close look at the glob HERE (https://www.spacetelescope.org/images/heic1221c/) it's very pretty in it's own right.

Why do I always think of Twin Peaks when I see Red Velvet curtains?
;)

[Atmos]

I don't think I've seen this one before, not even in wide field shots. Gonna haveta checkit out ;)

[Retrograde]

Fantastic Andy!
You have an amazing knack for finding these seemingly obscure objects and doing them beautifully.

[Geoff45]

Beautiful field Andy. Those RCW objects often pay big dividends. The glob is really a nice bit of icing on the cake.
Geoff

[Andy01]

Might be one for your new widey Colin...:question:



Cheers Pete, I enjoy navigating unchartered waters, it's risky but the rewards are sometimes there - thanks for positive vibes :D



Thanks Geoff. I showed it to David Malin at Starstuff in Byron Bay - he didn't recognize it either, but he did know who Alexander William Rodgers, Colin T. Campbell and John Bartlett Whiteoak were :thumbsup: (I didn't)

I'm thinking about looking deeper at this one this weekend :)

[Ryderscope]

A top image Andy. Very nice indeed.

[DavidU]

Very good indeed. Top notch.:thumbsup:

[Andy01]

Cheers Rodney, thanks for the feedback :thumbsup:



Thanks David, I added a panel to this last night, hoping to get enough data to add two more this weekend to make a partial mosaic of the region. We have unusually clear skies over Melbourne this weekend, bloody cold though! :lol: