LDN673 - dark tendrils in Aquila Sidonioed

[RickS (Rick)]

I have imaged this delightful object a couple of times. Once from Ten Chain Hill in 2011 and again from SRO in California in 2014. Both my attempts at processing the data were pretty woeful though I thought them OK at the time. Hopefully, I have finally done the combined data more justice this time and won't have regrets in 2017

Scope: FSQ-106ED
Mount: Paramount ME/AP900
Camera: QSI683/H-18
Filters: Astrodon Gen II LRGB (1.25")
Guiding: QSI OAG + Lodestar
Image scale: 2.094 arcsec/pixel
Exposures: L: 43x600s + 6x900s, R: 18x600s + 2 x 900s, G: 23x600s + 2x900s, B: 21x600s + 2x900s (total 13.6 hours SRO, 7 hrs 10CH)

High res version can be found on Astrobin: http://www.astrobin.com/235406/

Cheers,
Rick.

[Slawomir (Suavi)]

Very nice image and great processing Rick.

I was particularly intrigued by two small areas of dark cool gas lit up by the nearby stars.

Awesome work.

[RickS (Rick)]

Originally Posted by Slawomir

I was particularly intrigued by two small areas of dark cool gas lit up by the nearby stars.

Thanks, Suavi. The one at the top is a reflection nebula, GN 19.18.0 and the one the bottom is a Herbig-Haro object, HH32.

Cheers,
Rick.

[Slawomir (Suavi)]

Thank you Rick for clarifying that. A great image, should look very nice as a print too!

[Stevec35 (Steve)]

Can't recall your previous efforts Rick but this one looks pretty good to me. Difficult to see how you could have done any better.

Cheers

Steve

[lazjen (Chris)]

I like these types of images a lot.

Good stuff Rick.

[RickS (Rick)]

Thanks Steve & Chris.

[Dennis]

Hi Rick

Ticks all the right boxes for me Rick, then some. Nicely processed and presented with a lot going on to keep the viewer’s interest as they scan the field.

Another one for the Boardroom methinks!

Cheers

Dennis

PS – the compressed jpg murders the texture and smoothness compared to the full res version.

[strongmanmike (Michael)]

Beautiful image Rick, lovely light and shade and you have maintained the sparkle in the stars and the dust looks..just so inviting

Hey, if I Sidonio one of my images... does that make it a selfy

Mike

[gregbradley]

Nicely done Rick. The stars look great and the dust really stands out well which is not that easy to achieve.

Greg.

[RickS (Rick)]

Originally Posted by Dennis

Hi Rick

Ticks all the right boxes for me Rick, then some. Nicely processed and presented with a lot going on to keep the viewer’s interest as they scan the field.

Another one for the Boardroom methinks!

Cheers

Dennis

PS – the compressed jpg murders the texture and smoothness compared to the full res version.

Thanks, Dennis! I always like to check out images at full res but not everyone does.

Originally Posted by strongmanmike

Beautiful image Rick, lovely light and shade and you have maintained the sparkle in the stars and the dust looks..just so inviting

Hey, if I Sidonio one of my images... does that make it a selfy

Mike

Thanks, Mikey. You need to patent that Sidonio thing and charge us all royalties

Originally Posted by gregbradley

Nicely done Rick. The stars look great and the dust really stands out well which is not that easy to achieve.

Greg.

Thanks, Greg!

[Placidus (Mike and Trish)]

Superb! The dust lanes give the effect of an eagle's view of a blackened tree, or perhaps a tentcled sea-monster. Lots to explore.

Is the Herbig-Haro jet the small streaky warmish coloured object at (1677,1670)?

There is a small orange rubber duck at (1775, 1095). Perhaps it is also a reflection nebula.

Nice work,
Mike

[RickS (Rick)]

Originally Posted by Placidus

Superb! The dust lanes give the effect of an eagle's view of a blackened tree, or perhaps a tentcled sea-monster. Lots to explore.

Thanks very much, Mike! Looks a little Cthuluish to me

Originally Posted by Placidus

Is the Herbig-Haro jet the small streaky warmish coloured object at (1677,1670)?

I believe that the HH jet is at 1701,1658. The first attached image shows a small crop upsampled and rotated 90 degrees CCW to match this Hubble pic: http://annesastronomynews.com/photo-...haro-32-hh-32/ Can't see the smaller/dimmer appearing jet, unfortunately. I guess you can't expect too much of a 4" scope!

Originally Posted by Placidus

There is a small orange rubber duck at (1775, 1095). Perhaps it is also a reflection nebula.

Yep, that's the reflection neb GN 19.18.0 aka Bernes 16, Magakian 785, GM1-76 and RNO109 (second attached image.)

Cheers,
Rick.

[strongmanmike (Michael)]

Originally Posted by Placidus

There is a small orange rubber duck at (1775, 1095). Perhaps it is also a reflection nebula.

Nice work,
Mike

Ha ha yeah I see the rubber duck A cosmic duck in cosmic dust

[Placidus (Mike and Trish)]

Thanks for the detailed research and references, Rick. Adds to a great shot.

[multiweb (Marc)]

Love it. Very well processed, great colors in the field.

[Ryderscope (Rodney)]

'Tis definitely good fun exploring these dark nebula. The image of the DN is nicely overlain with a bright and colorful star field. Processing looks to be spot on from my perspective. Thanks for sharing Rick.

[RickS (Rick)]

Thanks Marc & Rodney.

[batema (Mark)]

Beautiful Rick. Great colours and wonderful star colour.

Mark

[RickS (Rick)]

Ta, Mark.