HFG1 and Abell 6

[RickS]

A couple of planetary nebulae, Heckathorn-Fesen-Gull 1 at lower left and Abell 6 at top right. The star that created HFG1 is V664 Cas, a binary star that's moving through the interstellar medium quite quickly. This motion is causing the blue shock front at lower right and leaving the red trail.

Captured at SRO, Aug-Dec, 2017

Scope: Ceravolo C300 @ f/4.9 = 1470mm FL
Mount: AP1100
Camera: FLI PL16803
Filters: Astrodon
Guiding: Lodestar II / Tak guide scope
Image scale: 1.26 arcsec/pixel (Drizzled to double res)
Exposures: 19x300s R, 20x300s G, 22x300s B, 50x1800s Ha, 49x1800s Oiii (~55 hours)
Processing: PixInsight 1.8.5

Processing credit: Rick Stevenson
Acquisition credit: Scott Johnson, Augusto Hernandez, John Kasianowicz, Daniele Malleo, Jose Mtanous and Rick Stevenson

Bigger version here: https://www.astrobin.com/full/332194/B/

[Ryderscope]

An intriguing field Rick. I'm impressed with the array of objects that you and your team manage to find for imaging. A great capture of two PNs in the same field. Thanks for sharing.

[strongmanmike]

Really great shot of these two Rick. The bow shock ahead of Heckathorn-Fesen-Gull 1 (They should'a named the Sydney Ferry that :shrug:), is intriguing and although not common, there are a few of these out there :thumbsup:

Mike

[Stevec35]

Impressive indeed Rick! Is this one of Sakib's?

Steve

[joelshort]

Another great one Rick. This is amazingly deep. I've had this area on my to do list for a long time but I never seem to have the skies to try it.

Honestly though, I would have expected the OIII bow shock to be a bit more smooth at 25hrs integration. Did you do any kind of noise reduction?

[gregbradley]

A very unusual object well imaged.

Greg.

[RickS]

Thanks, Rodney! We do spend a fair bit of time on research.



Ta, Mike. I find it amazing how much variation there is between different PNs. Would be interesting to try modelling them in 3D.



Thanks, Steve. I think this one was proposed by team member Scott Johnson.



Thanks, Joel. Even with ~25 hours on each NB channel there was quite a bit of noise - it's a dim target. I did some very slight nr but tried to leave a little grit. It's possible that my processing emphasised that more than I intended. I'll give it a day or two and decide whether it needs a repro. I try to err on the side of leaving too much noise rather than getting that plastic look.



Thanks, Greg.

[Bart]

Nicely presented. I've not seen these two before.

[strongmanmike]

So...what processing software do you use again Rick :question:.....have you tried Photoshop?

:rofl:
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sorry.... :face:

I agree, a little grit is ok :thumbsup:

[RickS]

Thanks, Bart.



Oooh you are a stirrer Mikey :poke: :lol:

[strongmanmike]

I only stir those I know have a sense of humour...and who I love :love2:

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. Man Love

[RickS]

I bet you say that to all the boys on Cloudy Nights as well :lol:

[strongmanmike]

Nah...you're in a reasonably select bunch :)

Ok, that's enough back slappin...now back to your image...excellent, give yourself a slap on the back :thumbsup:

Mike

[markas]

The NB must be verrrrrrrry faint!

Terrific image.

Mark

[RickS]

Thanks for the feedback, Joel. I smoothed it out a little. New version here: https://www.astrobin.com/full/332194/B/



It certainly was, Mark! Just a smudge in a 1800s Ha or Oiii sub :) Thanks...

[multiweb]

Muy bien Ricardo! Drizzled to perfection like a good paella. :thumbsup:

[RickS]

Muchas gracias, rana verde :lol:

[atalas]

Master Rick....love the shock wave:thumbsup:well done dude.

[Paul Haese]

Lovely image Rick. I really like the colours and detail.

[RickS]

Thanks very much, Louie & Paul!

[Ross G]

What an amazing looking object Rick.
A new one for me.

A beautiful photo!

Ross.

[RickS]

Thanks, Ross!