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Goofi's Imaging Challenge, October 2019 - The Pacman Nebula (NGC 281)

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#1 nmoushon

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Posted 02 October 2019 - 11:02 AM

The October 2019 Challenge is now open. The target is NGC 281 The Pacman Nebula. To reduce the number of stickies, please submit your entry to this thread.

 

The Rules will remain pretty simple:

      Your Equipment
      Your Data, Captured This Season
      Your Processing
      One Entry Per Member

 

To increase participation over such a diverse group, the winner will be selected by random drawing. Please feel free to start a thread requesting guidance on your entry prior to submitting it, the whole purpose of this challenge is to learn and compare on a common target. Entries must be submitted by midnight eastern time on October 31, and I will try to announce the winner early in November.

 

Note: If I am late announcing, gently nudge one of the moderators in a private note, it helps. Seriously, PM one of us!

 

Please display an image in your post, not just a link!!

 

I hope everyone has fun with this one, and with that,

 

Let The Games Begin

 

**Disclaimer** - If the selected winner does not reply and pick a target with-in 3 days of the winner being announced the Mods will then select the next target.


 

#2 Wintermute

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Posted 02 October 2019 - 02:46 PM

T0xViSFl.jpg

Bigger and full details: https://telescopius....res/view/44812/

Waka Waka! The Pacman Nebula (NGC 281) is an emission Nebula located in the Perseus Spiral arm of the Milky Way Galaxy.

Equipment

Imaging telescope: Celestron RASA 8"

Imaging cameras: ZWO asi294mc-pro

Mount: Pier-Mounted Sky-Watcher EQ6-R Pro

Guiding telescope: Orion 50mm Mini Deluxe

Guiding camera: ZWO asi120mm-mini

Filter(s): 2" Radian Triad Ultra

Exposures

218 x 120 sec, 120 gain, -5 Degrees C

Processing

AutomaticBackgroundExtraction, BackgroundNeutralization, SCNR to remove green, ACDNR noise reduction, CurvesTransformation for brightness and saturation, MorphologicalTransformation on Star Mask.


 

#3 17.5Dob

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Posted 03 October 2019 - 10:06 AM

Finally, a target I can enter with.

AT115, Nikon D5300, 44 X 240"

48824306927_9334a90308_b.jpg


 

#4 johnsoda

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Posted 04 October 2019 - 09:21 AM

Click on the small image for a better quality image and acquisition details. 

 

get.jpg?insecure

 

 

Attached Thumbnails

  • B4BE2DC2-90EC-4996-8EF4-7A61524FCD84.jpeg

 

#5 SeymoreStars

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Posted 04 October 2019 - 10:21 AM

The equipment in my sig

Chroma 3nm Oiii: 5x900"
Chroma 3nm Sii: 6x900"
Chroma 3nm Ha: 5x900"

PixInsight: Manual Calibration, PixelMath (to combine channels), PixelMath (to get rid of the magenta), HT (to balance and set BP), HT (SCNR (to remove green)

Captured Aug 8th 2019

 

Image24 3 small
 
get.jpg?insecure

Edited by sink45ny, 04 October 2019 - 11:06 AM.

 

#6 MCO Pilot Astronomer

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Posted 05 October 2019 - 09:38 AM

Nearly 4 hours with an ASI183MC (OSC) on an ES 80mm CF APO.
 

Pac Man

 


 

 

 

get.jpg?insecure


Edited by MCO Pilot Astronomer, 05 October 2019 - 09:58 AM.

 

#7 Gipht

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Posted 05 October 2019 - 10:46 AM

Equipment:  ASI183MM pro, Baader NB filters, 8" f/2.8 Power newton,   CEM60 guided.

Data: H-alpha  45x4',  OIII  19x4' captured 9/20/19

Processing:  Stacked in DSS, Developed in HOO in Star Tools and Gimp.

 

The more color used, the less detail that showed, so this picture does not have my usual gaudy colors cool.gif .

Attached Thumbnails

  • Pacmansep20.JPG

Edited by Gipht, 05 October 2019 - 03:04 PM.

 

#8 GoFish

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Posted 05 October 2019 - 01:43 PM

OTA:  SV102 ED Access w/SV 0.8 reducer/flattener

Camera:  ASI294MC Pro @ -5C, gain = 200, scale 1.65 "/px

Mount:  Atlas EQ-G, EQMOD

Guiding:  PHD2, Orion 50mm mini-guide, ASI120MM

Capture:  Nebulosity 4

OSC Lights:  70 @ 120s = 140 minutes = 2 hrs 20 min

Calibration:  darks, flats, dark flats

Stacking:  DSS

Processing:  Nebulosity, PS

 

Stuff I learned from trying to process this data into an image:

  • 120s exposures = too short
  • the histogram needed to be a lot further to the right
  • in this part of the sky, at least from my location, I needed a filter
  • next time I would probably try IDAS LPS D1

NGC281-DSS-Neb-PS-downsampled.jpg

 

 


 

#9 Rocketrat1

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Posted 06 October 2019 - 12:56 PM

Here is my Pacman image, I took this from my roof shooting towards the city so light pollution wasn't the best. It's about two hours of data shot at 350mm focal length so I had to crop it in. 

 

Here is the link to the full resolution image if anyone is curious:

https://www.astrobin.com/juof20/

Attached Thumbnails

  • PacmanprocessedCN.jpg

Edited by Rocketrat1, 06 October 2019 - 12:57 PM.

 

#10 Apothegary

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Posted 06 October 2019 - 02:59 PM

Here's my rendition. Captured over two nights last month, September, for total of 6.75 hours integration

 

Acquisition details:

Stellarvue 80mm F6, ZWO ASI1600MM-c, ZWO Filter wheel and 7nm filters, ZWO OAG with ASI290 guide camera on a Losmandy GM811G mount.

Red 60 x 1 minute, Green 60 x 1 minute, Blue 60 x 1 minute

HA 15 x 5 minutes, Oiii 15 x 5 minutes, Sii 15 x 5 minutes

 

Processed in PIxinsight. RGB and NB masters were combined with the NBRGB combination script. Tried to maintain natural star colors and worked the data a bit to get the blue tones in the central core.

 

Thanks for looking ...

Attached Thumbnails

  • 48848984291_8c08ce0c30_c.jpg

 

#11 Gene3

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Posted 07 October 2019 - 10:51 AM

Click on the small image for a better quality image and acquisition details. 

 

get.jpg?insecure

Wow 14 hours! Great image and image scale

I am using my SVX130T with QHY 367C (OSC)  getting about the same image scale. I have 7 hours so far, and now you have inspired me to get more!


 

#12 diggy

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Posted 07 October 2019 - 01:41 PM

OTA:  ES 127ED APO

Camera:  ASI83MM Pro @ -20C, gain = 53, scale 0.52 "/px

Mount:  iOptron CEM60

Guiding:  PHD2, Orion 50mm mini-guide, ASI120MM

Capture:  Voyager

Lights:  Ha: 16 @ 450s; OIII: 16 @450s : 4 hours intregration

Processing:  Pixinsight

 

 

Attached Thumbnails

  • pacman_small.jpg

 

#13 GoBlue

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Posted 07 October 2019 - 03:18 PM

Imaged Sept 9th.

 

ES ed80 triplet f/6 - 480mm fl.

Full spectrum modified T3i with IDAS LPS D1.

Orion 50mm guide scope and camera.

AVX.

 

BYEOS, PHD2, DSS and PS with Astronomy Tools add on.

 

41 x 240 + 40 x 180 lights.

4.73 hrs.

ISO 800

Camera sensor temp +28c.

 

Attached Thumbnails

  • pacman.jpg

 

#14 pinzmann

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Posted 07 October 2019 - 08:12 PM

My image taken on 9-11-19. I had just gotten the Opt-L-enhance filter and wanted to see how it did.
Taken in Bortle 4/5 skies. 
Explore Scientific 80mm triplet with a .8 FF/reducer, L-enhance filter
CEM60 
Nikon D5500 modded iso200
Guided PHD2
BackyardNikon
 
Lights 7x300sec total 35min
Darks 10
Flats 10
 
Processed in PS

Attached Thumbnails

  • PACMAN=test=opt-L4LR.jpg

Edited by pinzmann, 07 October 2019 - 11:59 PM.

 

#15 bjulihn

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Posted 08 October 2019 - 01:50 AM

It is astonishing how different all these images are from one another. Here is mine.

 

Taken October 5, 2019 from my Bortle 7-8 backyard.

GSO 6" f4 Newtonian with Baader MPCC III coma corrector.

QHY183C camera with 1 1/4" Triad Narrowband filter

35 frames 180 secs. - 105 minutes integration @ -25C

Guiding with Phd2 - Capture with Sequence Generator Pro (demo)

Processed in PixInsight

 

I have been doing Astro-photography since April. Finally getting better spacing on the coma corrector. I think this would be my best image thus far. I am quite pleased with the Triad filter.

Attached Thumbnails

  • Pacman_Nebula_NGC281_Final_small.jpg

 

#16 elmiko

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Posted 08 October 2019 - 09:47 AM

https://astrob.in/422012/D/

Further details- AB link

 

 

NGC 281 The Pacman Nebula is a beautiful nebula in Cassiopeia.
Captured on three nights Aug 19-21 Seeing 8/10

Attached Thumbnails

  • Ngc281_CN_final.jpg

Edited by elmiko, 08 October 2019 - 09:48 AM.

 

#17 Swordfishy

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Posted 11 October 2019 - 08:01 AM

Here is 3 hours worth of subs on NGC 281. I had to go heavy on the NR, so do not pixel peep haha. Taken in between clouds, under Bortle 9 skies in the middle of the Miami light dome.

 

 ZWO 183MC pro cooled. William Optics 81GT. Optlong L-Enhance filter. Losmandy G11 mount. 

Attached Thumbnails

  • 48879653518_4735450c5f_k.jpg

 

#18 Eric Horton

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Posted 11 October 2019 - 08:52 AM

NGC281

9-29-19
Imaged with Stellarvue 80mm/Ioptron CEM60 mount
ASI294mc Pro - IR cut filter
4.5 hr integration
Captured with Voyager
Processed with Astro Pixel Processor

Full image on Astrobin:  https://astrob.in/hdympd/0/

 

 2cd3a3f7-3972-4b72-b3aa-771394c65f54-1569767931.jpg


 

#19 rkelley61

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Posted 12 October 2019 - 12:59 PM

This is from my second set of images for NCG281 after revising camera rotation to hopefully better frame the nebula. Captured October 10th from my backyard.  Passing high clouds interfered with the OIII images requiring several to be excluded.  NINA/PHD2 used for capture and PixInsight for linear processing (calibration, integration, alignment, combination) and post processing (HistogramTransformation, SCNR (green removal), ColorSaturation, CurvesTransformation).

 

Images: HA 59x120s, SII 60x120s, OIII 42x120s, total integration time 5.4 hours

 

Equipment: ASI1600MM Pro; Astronomik 6 nm HA, SII, and OIII filters; modified GSO 10" f4 Newtonian; G11T mount, 70mm Astromania Guidescope with ASI290MM.

 

NCG281.jpg


 

#20 BurningChrome99

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Posted 13 October 2019 - 03:50 PM

First HOO Processed Image.
Gain 200 Offset 50
96x150s Ha 11 Oct 2019
127x90s Oiii 12 Oct 2019

Taken in Ridgecrest, CA
Captured with Nighttime Imaging 'n' Astronomy
ZWO ASI1600MM Pro
Scope 8" f/3.9 Astrograph
Mount Atlas Pro Az/EQ-G
Guiding ASI 120MC-S
Processed in Pixinsight

 

 48893284691_16d5a23d61_b.jpgNGC281 HOO by Ric Soard, on Flickr


 

#21 rekokich

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Posted 13 October 2019 - 10:26 PM

NGC 281 Pacman Nebula, Cassiopeia

The image was taken with the small TSAPO65Q astrograph, Sigma APO 1.4x tele-extender, Canon T3i full spectrum modified camera, Astronomik CLS-CCD filter, Ioptron IEQ30pro mount, and Orion 60mm f/4 SSAGpro autoguider.

The image is a stack of 31 x 180 second exposures, iso 800, processed with DSS, XnView, StarTools and Neat Image..

Limiting magnitude on the original image is 18.5

Thank you for looking.

 

NGC 281.jpg


 

#22 steste1122

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Posted 14 October 2019 - 08:10 AM

Televue TV-101

ZWO ASI 294
Celestron AVX

QHY Polemaster
OPT Triad Ultra

123 frames X 118 seconds
No guide camera

Stacked in Autostakkert

 

Capture: 123 light frames total, each 118 seconds, gain 155, no bias, darks, or flats Total integration: 4 hours

Processing: Autostakkert was used for stacking, default settings. I only kept the best 75% of the frames for stacking.  Used Astroart to adjust levels and curves, no de-noise or anything else yet.

https://www.astrobin...ln35cx/?nc=user

Attached Thumbnails

  • pacman.PNG

 

#23 Der_Pit

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Posted 15 October 2019 - 12:18 PM

So here's my entry, though it mostly is a mishap frown.gif

Wanted to do my first HaRGB, with 1.5h for each channel.  Unfortunately the 2" connection of my A-P scope has¹ only one screw, and is a bit too large, so it's difficult to get a solid connection - and this time it got lose, limping down before and after meridian flip in opposite direction and producing a strong tilt/defocus on both sides shocked.gif

 

So it's only the center part (2400x1800, scaled down for here to fit), still needed quite a lot of retouching to reduce bad starshapes/halos.

 

NGC281_1600.jpg

 

¹Actually, it had.  Embarassed by this failure, I finally dismounted the focuser unit, and drilled two more holes at ±120⁰ for additional screws.....  


 

#24 Bretw01

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Posted 20 October 2019 - 10:08 AM

Imaged 10-18-2019

 

Imaging camera: ASI183MC-Pro, -10c, gain 50

Mount:                 EQ6-R Pro

Scope:                 SVQ100

Guide camera:     ASI290MM

Guide scope:       Orion CT80

Capture/Guiding: SGP PHD2

Filter:                    Optolong L-eNhance

 

89x120s (lost one sub to a passing cloud)

Calibrated with bias, darks and flats.

Stacked and processed in pixinsight, tweaked in photoshop.

 

My first image with the L-eNhance filter, I might start a new topic on my opinion of it later today if I have time. Also, first light for the ASI290mm guide camera.

 

NGC281_DRZ_v2_PIPS.jpg

 

Astrobin

 

get.jpg?insecure


Edited by Bretw01, 20 October 2019 - 10:03 PM.

 

#25 nobake

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Posted 20 October 2019 - 09:00 PM

NGC281 final
 
Canon 5d4, ISO 3200
AVX mount
Astro-Physics Stowaway with field flattener
45 x 90 seconds
Used flats that only correct vignetting, used dithering, no darks.
 
Just cropped the dithering edges of the image.

 


 


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