July AP Processing Challenge

Every month a new challenge!
User avatar
Graeme1858
Moderator
Articles: 0
Posts: 2048
Joined: Mon Jun 24, 2019 7:16 pm
Location: North Kent, UK

TSS Awards Badges

TSS Photo of the Day

July AP Processing Challenge

#1

Post by Graeme1858 »

We have a treat for the July TSS Astrophotography Processing Challenge.

Carol (Carastro) has submitted her Narrow Band data captures of NGC7822.

From Wikipedia:

NGC 7822 is a young star forming complex in the constellation of Cepheus. The complex encompasses the emission region designated Sharpless 171, and the young cluster of stars named Berkeley 59. The complex is believed to be some 800–1000 pc distant, with the younger components aged no more than a few million years. The complex also includes one of the hottest stars discovered within 1 kpc of the Sun, namely BD+66 1673, which is an eclipsing binary system consisting of an O5V that exhibits a surface temperature of nearly 45,000 K and a luminosity about 100,000 times that of the Sun. The star is one of the primary sources illuminating the nebula and shaping the complex's famed pillars of creation-type formations, the elephant trunks.

Taken at Kelling Heath Star party in Norfolk UK Sept 2019

Total Ha 19 x 600secs half and half 7nm and 3nm Baader filters
Oiii 6 x 300secs
Sii 5 x 300secs
Total 4 hours 5mins
Mapped SHO + some RGB stars

The tif images have been calibrated and stacked ready for processing and can be downloaded from here:

https://drive.google.com/drive/folders/ ... sp=sharing

Please download the files and process using your preferred software. Then post an image of your results with a description of your methods for discussion.

You can also just join the discussion with some input for us all to learn from.

If you have data to submit for a future challenge please email a download link to a cloud storage location to tssapchallenge@theskysearchers.com

Have fun!

Regards

Graeme
__________________________________________________
Celestron 9.25 f10 SCT, CGX mount.
Canon 600D, IDAS LPS-D1 Filter, Altair GPCAM2 290C. Coming soon: ZWO ASI294MC Pro.
Celestron 80mm Guidescope, QHY5-II Mono.
Miranda 10x50 Binoculars.
Image
User avatar
SirTalllPaul
Moon Ambassador
Articles: 0
Posts: 87
Joined: Sat Jun 06, 2020 6:30 pm
Location: Spain

Re: July AP Processing Challenge

#2

Post by SirTalllPaul »

I've never processed before, not even sure where to start, I wonder if I should give it a go..hmmmm
:telescopewink: :Astronomer1:

Telescope newbie.
Skywacther 8"
Up is down and down is up. I never have inverted controls on in games, damn you telescope.
User avatar
Juno16
Moderator
Articles: 0
Posts: 2843
Joined: Sun May 12, 2019 3:13 pm
Location: Mississippi Gulf Coast

TSS Awards Badges

TSS Photo of the Day

Re: July AP Processing Challenge

#3

Post by Juno16 »

I struggle with my OSC files!

Many thanks Graeme for putting this together.

I am looking forward to what “develops “ here!

Good luck everyone!
Jim

Scopes: Explore Scientific ED102 Triplet APO, Celestron Nexstar 130 SLT.
Mounts: Celestron AVX with Orion MM Autoguider, SLT;
Binoculars: Bushnell 10X50
Stuff: ASI EAF Focus Motor, Stellarview FF/FR
Camera / Software: Nikon D5300 (Ha mod), IDAS LPS D-1 Filter, Astrophotography Tool, PHD2, SharpCap v3.2, StarTools 1.6 alpha, Adobe Photoshop 21.1.3
Dog: Jack
Sky: Bortle 7
Astro Photos https://flickr.com/photos/157183480@N07 ... 7681236785
User avatar
Graeme1858
Moderator
Articles: 0
Posts: 2048
Joined: Mon Jun 24, 2019 7:16 pm
Location: North Kent, UK

TSS Awards Badges

TSS Photo of the Day

Re: July AP Processing Challenge

#4

Post by Graeme1858 »

SirTalllPaul wrote:
Wed Jul 01, 2020 6:45 am
I've never processed before, not even sure where to start, I wonder if I should give it a go..hmmmm

A lot of people here have never processed an astro image or (me included) have only ever processed single file colour images, so you're in good company.

Give it a go!

Regards

Graeme
__________________________________________________
Celestron 9.25 f10 SCT, CGX mount.
Canon 600D, IDAS LPS-D1 Filter, Altair GPCAM2 290C. Coming soon: ZWO ASI294MC Pro.
Celestron 80mm Guidescope, QHY5-II Mono.
Miranda 10x50 Binoculars.
Image
User avatar
Graeme1858
Moderator
Articles: 0
Posts: 2048
Joined: Mon Jun 24, 2019 7:16 pm
Location: North Kent, UK

TSS Awards Badges

TSS Photo of the Day

Re: July AP Processing Challenge

#5

Post by Graeme1858 »

Juno16 wrote:
Wed Jul 01, 2020 10:49 am
I struggle with my OSC files!

Many thanks Graeme for putting this together.

I am looking forward to what “develops “ here!

Good luck everyone!

Same as that! This will be my first go at NB processing. I'm looking forward to seeing what I can learn too.

Regards

Graeme
__________________________________________________
Celestron 9.25 f10 SCT, CGX mount.
Canon 600D, IDAS LPS-D1 Filter, Altair GPCAM2 290C. Coming soon: ZWO ASI294MC Pro.
Celestron 80mm Guidescope, QHY5-II Mono.
Miranda 10x50 Binoculars.
Image
User avatar
yobbo89
Milky Way Ambassador
Articles: 0
Posts: 1484
Joined: Sat May 11, 2019 7:44 pm
Location: australia qld brisbane

TSS Photo of the Day

Re: July AP Processing Challenge

#6

Post by yobbo89 »

i'll give it a go, the ha looks fine but the oiii sii looks like it has some noise reduction or something done to it while stacking .
scopes :gso/bintel f4 12"trust tube, bresser messier ar127s /skywatcher 10'' dob,meade 12'' f10 lx200 sct
cameras : asi 1600mm-c/asi1600mm-c,asi120mc,prostar lp guidecam, nikkon d60, sony a7,asi 290 mm
mounts : eq6 pro/eq8/mesu 200 v2
filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, chroma 3nm ha,sii,oiii,nii,rgb,lowglow ,Thousand Oaks Solar Filter.
extras : skywatcher f4 aplanatic cc, Baader MPCC MKIII Coma Corrector,Orion Field Flattener,zwo 1.25''adc.starlight maxi 2" 9x filter wheel

Image
User avatar
yobbo89
Milky Way Ambassador
Articles: 0
Posts: 1484
Joined: Sat May 11, 2019 7:44 pm
Location: australia qld brisbane

TSS Photo of the Day

Re: July AP Processing Challenge

#7

Post by yobbo89 »

did you bin the oiii and sii and then drizzled them ?
scopes :gso/bintel f4 12"trust tube, bresser messier ar127s /skywatcher 10'' dob,meade 12'' f10 lx200 sct
cameras : asi 1600mm-c/asi1600mm-c,asi120mc,prostar lp guidecam, nikkon d60, sony a7,asi 290 mm
mounts : eq6 pro/eq8/mesu 200 v2
filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, chroma 3nm ha,sii,oiii,nii,rgb,lowglow ,Thousand Oaks Solar Filter.
extras : skywatcher f4 aplanatic cc, Baader MPCC MKIII Coma Corrector,Orion Field Flattener,zwo 1.25''adc.starlight maxi 2" 9x filter wheel

Image
User avatar
bobharmony
Orion Spur Ambassador
Articles: 0
Posts: 905
Joined: Sun May 12, 2019 1:11 pm
Location: Connecticut, US

TSS Photo of the Day

Re: July AP Processing Challenge

#8

Post by bobharmony »

This should be interesting. A chance to play the narrowband arena! First pass is really weird.

Bob
Hardware: Celestron C6-N w/ Advanced GTmount, Baader MK iii CC, Orion ST-80, Canon 60D (unmodded), Orion SSAG
Software: BYE, APT, PHD2, DSS, PhotoShop CC 2020, StarTools, Cartes du Ciel, AstroTortilla

Image
User avatar
yobbo89
Milky Way Ambassador
Articles: 0
Posts: 1484
Joined: Sat May 11, 2019 7:44 pm
Location: australia qld brisbane

TSS Photo of the Day

Re: July AP Processing Challenge

#9

Post by yobbo89 »

took about 15 mins to process , just basic stretch of each frame, scr green removal, hue shift on the stars,star mask,psf,lum mask, deconvolution 50 iterations, tvgdenoise,crop.

i didn't do background extraction, i've notice lately that it has been removing some faint signals in my images .

some questions, badder has 3nm ? how did carol stack the 7nm and 3nm , did she do this for the nii data ?

also do you have a link to the original image ?
Attachments
Image04 comp.jpg
scopes :gso/bintel f4 12"trust tube, bresser messier ar127s /skywatcher 10'' dob,meade 12'' f10 lx200 sct
cameras : asi 1600mm-c/asi1600mm-c,asi120mc,prostar lp guidecam, nikkon d60, sony a7,asi 290 mm
mounts : eq6 pro/eq8/mesu 200 v2
filters : 2'' astronomik lp/badder lrgb h-a,sII,oIII,h-b,Baader Solar Continuum, chroma 3nm ha,sii,oiii,nii,rgb,lowglow ,Thousand Oaks Solar Filter.
extras : skywatcher f4 aplanatic cc, Baader MPCC MKIII Coma Corrector,Orion Field Flattener,zwo 1.25''adc.starlight maxi 2" 9x filter wheel

Image
User avatar
Graeme1858
Moderator
Articles: 0
Posts: 2048
Joined: Mon Jun 24, 2019 7:16 pm
Location: North Kent, UK

TSS Awards Badges

TSS Photo of the Day

Re: July AP Processing Challenge

#10

Post by Graeme1858 »

Thanks for the enthusiastic responses Yobbo!

yobbo89 wrote:
Wed Jul 01, 2020 1:26 pm
i'll give it a go, the ha looks fine but the oiii sii looks like it has some noise reduction or something done to it while stacking .

Not sure about that. Perhaps @carastro can shed some light.

yobbo89 wrote:
Wed Jul 01, 2020 1:55 pm
did you bin the oiii and sii and then drizzled them ?

Carol's original post doesn't mention binning or drizzling.

yobbo89 wrote:
Wed Jul 01, 2020 2:19 pm
took about 15 mins to process , just basic stretch of each frame, scr green removal, hue shift on the stars,star mask,psf,lum mask, deconvolution 50 iterations, tvgdenoise,crop.

i didn't do background extraction, i've notice lately that it has been removing some faint signals in my images .

some questions, badder has 3nm ? how did carol stack the 7nm and 3nm , did she do this for the nii data ?

also do you have a link to the original image ?

Carol's original post is here:

viewtopic.php?f=66&t=7044&p=60541&hilit=NGC7822#p60541

If you mean the individual capture files then I'll have to go home and check to see if Carol submitted those. I'm at work at the moment.

That's a great first try at the image Yobbo. Great depth. I'm going to have a go tonight.

Regards

Graeme
__________________________________________________
Celestron 9.25 f10 SCT, CGX mount.
Canon 600D, IDAS LPS-D1 Filter, Altair GPCAM2 290C. Coming soon: ZWO ASI294MC Pro.
Celestron 80mm Guidescope, QHY5-II Mono.
Miranda 10x50 Binoculars.
Image
User avatar
KathyNS
Co-Administrator
Articles: 0
Posts: 889
Joined: Thu Apr 25, 2019 11:47 am
Location: Nova Scotia
Contact:

TSS Photo of the Day

Re: July AP Processing Challenge

#11

Post by KathyNS »

Thanks for sharing your data, Carole!

Here is my attempt. I am very new to multi-channel narrowband processing. I spent a lot of time trying different palettes. I finally settled on H-HO-O.

After a very basic noise reduction using ATrous Wavelet Transform, I did a Masked Stretch on each image. I don't like doing background extractions on images that are mostly nebula, because they lose too much data.

For the narrowband data, I did a Linear Fit, then used those three images to try the various palette combinations, including SHO, Hubble (modified SHO), CFHT (HOS) and a few others. As I said, I settled on the H_HO_O palette.

I used Starnet++ to remove the stars, then did a bit of contrast tweaking with Curves and sharpening with ATrous Wavelets. I finished up the nebula with a pass of ACDNR noise reduction.

With the RGB data, I used Starnet++ to extract the stars. I did a Morphological Transform to reduce the star sizes, followed by Curves to adjust their brightness and saturation.

Finally, I used Pixel Math to combine the nebula and stars. The last step was to reduce the image size and convert to jpg for posting.

I couldn't find a way to reduce the star haloes, which escaped Starnet++ and ended up in the narrowband image. Had they been on a dark background, I might have tried harder to reduce them, but with bright nebula as the background, I thought it prudent to leave them alone.
Carastro-July-contest.jpg
Image
DSO AP: Orion 200mm f/4 Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,LRGB filters; KWIQ/QHY5 guide scope; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on HEQ5 pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome; iOptron CEM60 (pier); Hall's Harbour Observatory (H2O)
User avatar
Graeme1858
Moderator
Articles: 0
Posts: 2048
Joined: Mon Jun 24, 2019 7:16 pm
Location: North Kent, UK

TSS Awards Badges

TSS Photo of the Day

Re: July AP Processing Challenge

#12

Post by Graeme1858 »

Very nice rendition Kathy. That pallet gives a very different feel.

When you say you chose H-HO-O, does that mean you didn't use the Sii in your image?

Regards

Graeme
__________________________________________________
Celestron 9.25 f10 SCT, CGX mount.
Canon 600D, IDAS LPS-D1 Filter, Altair GPCAM2 290C. Coming soon: ZWO ASI294MC Pro.
Celestron 80mm Guidescope, QHY5-II Mono.
Miranda 10x50 Binoculars.
Image
User avatar
KathyNS
Co-Administrator
Articles: 0
Posts: 889
Joined: Thu Apr 25, 2019 11:47 am
Location: Nova Scotia
Contact:

TSS Photo of the Day

Re: July AP Processing Challenge

#13

Post by KathyNS »

Graeme1858 wrote:
Wed Jul 01, 2020 10:02 pm
Very nice rendition Kathy. That pallet gives a very different feel.

When you say you chose H-HO-O, does that mean you didn't use the Sii in your image?

Regards

Graeme
Thanks.

Correct, I didn’t use the Sii data. I used it in several of my palette tests, but I didn’t find that it contributed much.
Image
DSO AP: Orion 200mm f/4 Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,LRGB filters; KWIQ/QHY5 guide scope; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on HEQ5 pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome; iOptron CEM60 (pier); Hall's Harbour Observatory (H2O)
User avatar
bobharmony
Orion Spur Ambassador
Articles: 0
Posts: 905
Joined: Sun May 12, 2019 1:11 pm
Location: Connecticut, US

TSS Photo of the Day

Re: July AP Processing Challenge

#14

Post by bobharmony »

I took a quick crack at the data in StarTools and used the Hubble palette. I loaded the Sii to the red channel, Ha to green and Oiii to blue. Processing consisted of using the Develop module to stretch, the Color module to apply SHO, a touch of deconvolution, and some noise reduction.
NGC7822 SHO.jpg
It was fun to play with something very out of the ordinary for me. I may try to do some more natural color processing and incorporate the RGB for star colors at some point.

Bob
Hardware: Celestron C6-N w/ Advanced GTmount, Baader MK iii CC, Orion ST-80, Canon 60D (unmodded), Orion SSAG
Software: BYE, APT, PHD2, DSS, PhotoShop CC 2020, StarTools, Cartes du Ciel, AstroTortilla

Image
User avatar
Graeme1858
Moderator
Articles: 0
Posts: 2048
Joined: Mon Jun 24, 2019 7:16 pm
Location: North Kent, UK

TSS Awards Badges

TSS Photo of the Day

Re: July AP Processing Challenge

#15

Post by Graeme1858 »

yobbo89 wrote:
Wed Jul 01, 2020 2:19 pm
also do you have a link to the original image ?

Just the four tif files.

KathyNS wrote:
Wed Jul 01, 2020 10:51 pm
Correct, I didn’t use the Sii data. I used it in several of my palette tests, but I didn’t find that it contributed much.

What software did you use for trialing the palette combinations and the final merging of the Ha and Oiii files?

That's an open question to anyone that knows how to do this! :)

Regards

Graeme
__________________________________________________
Celestron 9.25 f10 SCT, CGX mount.
Canon 600D, IDAS LPS-D1 Filter, Altair GPCAM2 290C. Coming soon: ZWO ASI294MC Pro.
Celestron 80mm Guidescope, QHY5-II Mono.
Miranda 10x50 Binoculars.
Image
User avatar
Graeme1858
Moderator
Articles: 0
Posts: 2048
Joined: Mon Jun 24, 2019 7:16 pm
Location: North Kent, UK

TSS Awards Badges

TSS Photo of the Day

Re: July AP Processing Challenge

#16

Post by Graeme1858 »

bobharmony wrote:
Thu Jul 02, 2020 3:14 am
I took a quick crack at the data in StarTools and used the Hubble palette. I loaded the Sii to the red channel, Ha to green and Oiii to blue. Processing consisted of using the Develop module to stretch, the Color module to apply SHO, a touch of deconvolution, and some noise reduction.

That's a great go at it Bob.

Will Startools let you use the other palettes to create an RGB image with the same data?

Regards

Graeme
__________________________________________________
Celestron 9.25 f10 SCT, CGX mount.
Canon 600D, IDAS LPS-D1 Filter, Altair GPCAM2 290C. Coming soon: ZWO ASI294MC Pro.
Celestron 80mm Guidescope, QHY5-II Mono.
Miranda 10x50 Binoculars.
Image
User avatar
KathyNS
Co-Administrator
Articles: 0
Posts: 889
Joined: Thu Apr 25, 2019 11:47 am
Location: Nova Scotia
Contact:

TSS Photo of the Day

Re: July AP Processing Challenge

#17

Post by KathyNS »

Graeme1858 wrote:
Thu Jul 02, 2020 5:47 am
What software did you use for trialing the palette combinations and the final merging of the Ha and Oiii files?
D'oh! I should have mentioned that. I used PixInsight. The Channel Combination tool makes it easy to allocate the different monochrome images to different colour channels. In the cases where I tried combined channels, like the HO that I eventually used, I used PixelMath to do a weighted average of the two mono images.
Image
DSO AP: Orion 200mm f/4 Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,LRGB filters; KWIQ/QHY5 guide scope; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on HEQ5 pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome; iOptron CEM60 (pier); Hall's Harbour Observatory (H2O)
User avatar
bobharmony
Orion Spur Ambassador
Articles: 0
Posts: 905
Joined: Sun May 12, 2019 1:11 pm
Location: Connecticut, US

TSS Photo of the Day

Re: July AP Processing Challenge

#18

Post by bobharmony »

Graeme1858 wrote:
Thu Jul 02, 2020 5:54 am
bobharmony wrote:
Thu Jul 02, 2020 3:14 am
I took a quick crack at the data in StarTools and used the Hubble palette. I loaded the Sii to the red channel, Ha to green and Oiii to blue. Processing consisted of using the Develop module to stretch, the Color module to apply SHO, a touch of deconvolution, and some noise reduction.

That's a great go at it Bob.

Will Startools let you use the other palettes to create an RGB image with the same data?

Regards

Graeme
Thanks, Graeme. StarTools allows for any combination of the data by associating each of the data files with any color channel you choose. It's all new to me, but very interesting to learn some of the new capabilities. For an RGB image I would assign the Ha data to the Red channel, and so on. We shall see!

Bob
Hardware: Celestron C6-N w/ Advanced GTmount, Baader MK iii CC, Orion ST-80, Canon 60D (unmodded), Orion SSAG
Software: BYE, APT, PHD2, DSS, PhotoShop CC 2020, StarTools, Cartes du Ciel, AstroTortilla

Image
User avatar
KingNothing13
Pluto Ambassador
Articles: 0
Posts: 444
Joined: Wed Jun 19, 2019 4:54 pm
Location: Western Mass

TSS Awards Badges

Re: July AP Processing Challenge

#19

Post by KingNothing13 »

So this looks kind of neat, and fun.

I understand all of the words you are saying separately, but when you put them together like that - I have no idea what's going on. :lol:
-- Brett

Scopes:
Primary: Apertura AD10 with ES 82* 18mm (69x), 11mm (114x), & 6.7mm (187x)
G-n-G: Orion GoScope II 70mm "Travel Scope" with Orion 25mm Kellner (16x), Orion 10mm Kellner (40x)
List Counts: Messier: 64; Herschel 400: 18; Caldwell: 2

Image
User avatar
Graeme1858
Moderator
Articles: 0
Posts: 2048
Joined: Mon Jun 24, 2019 7:16 pm
Location: North Kent, UK

TSS Awards Badges

TSS Photo of the Day

Re: July AP Processing Challenge

#20

Post by Graeme1858 »

KingNothing13 wrote:
Thu Jul 02, 2020 2:38 pm
So this looks kind of neat, and fun.

I understand all of the words you are saying separately, but when you put them together like that - I have no idea what's going on. :lol:

:D
__________________________________________________
Celestron 9.25 f10 SCT, CGX mount.
Canon 600D, IDAS LPS-D1 Filter, Altair GPCAM2 290C. Coming soon: ZWO ASI294MC Pro.
Celestron 80mm Guidescope, QHY5-II Mono.
Miranda 10x50 Binoculars.
Image
Post Reply

Return to “AP Processing Challenge”