The Dark Shark (My first Dark Nebula)

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Jockinireland Ireland
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The Dark Shark (My first Dark Nebula)

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Post by Jockinireland »


After over 6 weeks without a break I finally got some clear sky. Also no moon so decided to try my very first Dark nebula.

The weather did not really co-operate and between passing clouds, me forgetting what to do and some technical issues because of a new imaging PC this ended up at only 3.5 hours. I think it would need at least double that to start bringing structure to the nebula. But at least its a start and some of the nebula is showing. Not sure why the brightest stars are bloated?

SW Evostar 80ED, ASI2600mc, NEQ6, Optolong L-Pro, 70 x 180s

Thanks for looking and C&C always welcome
dark_Shark_vs.jpg
Higher res is here.
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Scope: Skywatcher Evostar 80ED (SW 0.85 FR/FF) on a SW NEQ6Pro
Guiding; SW Evoguide 50ED, ASI 120mm mini
Meade 8" LX200 GPS on wedge (Guided with a cheapo 50mm guidescope and a ZWO ASI 120mm mini)
Sharpstar 61EDPH II (with dedicated 0.8 reducer) with wiliam Optics 32mm uniguide
Camera: ASI2600MC pro. QHY 163M with ZWO 7nm NB filters, Canon EOS700D astro mod
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STEVE333 United States of America
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Re: The Dark Shark (My first Dark Nebula)

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Post by STEVE333 »


For only 3.5 hours you captured a clear image of the Shark. Processing faint nebulae is always tricky when it comes to controlling the stars. Hope you can get some more time on this one.

Steve
Steve King: Light Pollution (Bortle 5)
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Jockinireland Ireland
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Re: The Dark Shark (My first Dark Nebula)

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Post by Jockinireland »


STEVE333 wrote: Tue Oct 12, 2021 9:23 pm For only 3.5 hours you captured a clear image of the Shark. Processing faint nebulae is always tricky when it comes to controlling the stars. Hope you can get some more time on this one.

Steve
Hi Steve, thanks for that. Yes it was probably the toughest process I've done to date and I want to pile a decent amount of time into it.
Scope: Skywatcher Evostar 80ED (SW 0.85 FR/FF) on a SW NEQ6Pro
Guiding; SW Evoguide 50ED, ASI 120mm mini
Meade 8" LX200 GPS on wedge (Guided with a cheapo 50mm guidescope and a ZWO ASI 120mm mini)
Sharpstar 61EDPH II (with dedicated 0.8 reducer) with wiliam Optics 32mm uniguide
Camera: ASI2600MC pro. QHY 163M with ZWO 7nm NB filters, Canon EOS700D astro mod
Secondary mount: Skywatcher StarAdventurer

My Astrobin https://www.astrobin.com/users/mackiedlm/
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Juno16 United States of America
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Re: The Dark Shark (My first Dark Nebula)

#4

Post by Juno16 »


That is beautiful David!

I will have to try a target like this sometime, but I am still struggling with OSC in my lp. I use an IDAS LPS D-1 lp filter. I wonder if the L-Pro would do a better job???

You have captured and processed a really nice image!

I certainly understand having issues. I had a mess of a session recently (spanning two nights) that I might share soon. Amazing how AP can go from success to very challenging from one session to the next!

Very nice David and thanks for sharing!
Jim

Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), Orion 50mm Guide Scope, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, Orion SSAG, IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
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messier 111 Canada
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Re: The Dark Shark (My first Dark Nebula)

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Post by messier 111 »


you did a fabulous work on it in a short time , thx
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Larry 1969 United States of America
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Re: The Dark Shark (My first Dark Nebula)

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Post by Larry 1969 »


Just WOW!
That's pretty fantastic!
My nomination for APOD!

Larry
For visual:
10" Skywatcher collapsible goto dob, various EP's and a Celestron StarSense auto align.

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Re: The Dark Shark (My first Dark Nebula)

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Post by MariusD69 »


Wonderful image! Well done!!
Marius
Mount: iOpton Cem60, HEQ5-for spare
Scopes: newt SW 150/750PDS, dobson SW 150/1200; SW 114/500; TS Photoline 80mm f/6 Triplet APO; SW ST80
Cameras: ASI294MC Pro; ASI1600MM Pro; Atik 314L+mono; Canon 1100D; QHY5III-178m; QHY5L-II-m ; ASI224; Altair GPCAM 290M, GPCAM290C
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Re: The Dark Shark (My first Dark Nebula)

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Post by Gmetric »


Jockinireland wrote: Tue Oct 12, 2021 9:59 pm
STEVE333 wrote: Tue Oct 12, 2021 9:23 pm For only 3.5 hours you captured a clear image of the Shark. Processing faint nebulae is always tricky when it comes to controlling the stars. Hope you can get some more time on this one.

Steve
Hi Steve, thanks for that. Yes it was probably the toughest process I've done to date and I want to pile a decent amount of time into it.
It looks dang tough to me, and having never processed one; I wouldn't know where to start, lol. But, for 3.5 hrs you've pulled it out of the darkness and produced a cracking image. Like Steve said. I can't wait to see what this would look like with more TOT.
Arry (Bortle 7 area)

Telescopes: Sky-Watcher ED72II, Sky-Watcher PDS130, Sky-Explorer SN F4 200mm astrograph and Vixen F11.1 90mm
Cameras: Nikon D5300 modded, Canon Kiss X8i modded, Cooled Canon kiss X4 modded, Atik 16IC and 383 colour, ASI120MC, QHY5LII
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Re: The Dark Shark (My first Dark Nebula)

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Post by jthommes »


Cool image. Well done.
Jim Thommes
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Re: The Dark Shark (My first Dark Nebula)

#10

Post by Makuser »


Hi David. A superb Dark Shark Nebula (LDN 1235) image for just 3.5 hours of data. Excellent details and features in your capture and I really enjoyed the high resolution version with the annotations. Thanks for sharing this capture with us David, and hope you get to spend more time with this fascinating target.
Marshall
Sky-Watcher 90mm f/13.8 Maksutov-Cassegrain on motorized Multimount
Orion Astroview 120ST f/5 Refractor on EQ3 mount
Celestron Comet Catcher 140mm f/3.64 Schmidt-Newtonian on alt-az mount
Celestron Omni XLT150R f/5 Refractor on CG4 mount with dual axis drives.
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Re: The Dark Shark (My first Dark Nebula)

#11

Post by starfield »


Nice Shark. I think you're right....double that and you'll be able to pull even more detail out. The dark stuff does make for a fun processing challenge.
Scopes: Esprit 100, 12.5" Telekit Dob
Camera: 294 MC Pro, 224 mc, 2600mm
Guiding: ZWO 290 mini on 120mm guide scope
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