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Another star color

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gardenfish

Hypergalaxy

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Location: Phoenix Az.

Post Sun Jan 22, 2017 12:32 pm

Another star color

This was HSO from last night. It shows the r-g-b separated better. It looks the same in PS or PI. Scaling? rotation? ......? The colors are in line in center and off on right and differently on top left. If I try without the ff would it change? Is it the camera angle?


IC410NB.jpg
IC410NB.jpg (143.75 KiB) Viewed 7547 times
Takahashi TSA120
Takahashi TOA150
SV70T
CEM60 - PierTech2 pier
QSI6120 WSG-8
Astrodon 31mm LRGB E Series -Ha-3nm - OIII-3nm - SII-3nm

G3 Mono - ASI290MM Mini - ST80

ES 152 AR - Atlas mount
16" goto Dob

Nikon D5200 Modded

Roll-off roof Observatory
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Doug

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The good thing about science is that it’s true whether or not you believe in it. ― Neil deGrasse Tyson

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Post Sun Jan 22, 2017 2:42 pm

Re: Another star color

See if you can post a link to your stacked images (FITS or XSIF). To me, it looks like things aren't aligned. But, I may come up with the same results.
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CPC800, 60MM Classic Refractor, EON72, EON120, Atlas EQ-G, SSPro V1, SSAG, IDAS LPS Filter, TRF-2008
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gardenfish

Hypergalaxy

Posts: 1117

Joined: Fri Feb 05, 2016 9:18 am

Location: Phoenix Az.

Post Sun Jan 22, 2017 3:25 pm

Re: Another star color

Auto is Ha-001 is OIII- 002 is SII .

Thanks


https://www.dropbox.com/sh/k5lxzt2o235i ... 6ACwa?dl=0
Takahashi TSA120
Takahashi TOA150
SV70T
CEM60 - PierTech2 pier
QSI6120 WSG-8
Astrodon 31mm LRGB E Series -Ha-3nm - OIII-3nm - SII-3nm

G3 Mono - ASI290MM Mini - ST80

ES 152 AR - Atlas mount
16" goto Dob

Nikon D5200 Modded

Roll-off roof Observatory
<<

Doug

User avatar

The good thing about science is that it’s true whether or not you believe in it. ― Neil deGrasse Tyson

Posts: 6416

Joined: Tue Dec 23, 2008 11:41 am

Location: Temecula, California

Post Sun Jan 22, 2017 4:30 pm

Re: Another star color

There are three files:
Autosave.tif
Autosave001.tif
Autosave002.tif

Can you ID each file for me?
Image
MyAstroImages.com Photo Album. Sharing Your AstroImages On Line!
More Images.
:darkgrin:
CPC800, 60MM Classic Refractor, EON72, EON120, Atlas EQ-G, SSPro V1, SSAG, IDAS LPS Filter, TRF-2008
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gardenfish

Hypergalaxy

Posts: 1117

Joined: Fri Feb 05, 2016 9:18 am

Location: Phoenix Az.

Post Sun Jan 22, 2017 5:17 pm

Re: Another star color

I did above
Takahashi TSA120
Takahashi TOA150
SV70T
CEM60 - PierTech2 pier
QSI6120 WSG-8
Astrodon 31mm LRGB E Series -Ha-3nm - OIII-3nm - SII-3nm

G3 Mono - ASI290MM Mini - ST80

ES 152 AR - Atlas mount
16" goto Dob

Nikon D5200 Modded

Roll-off roof Observatory
<<

Doug

User avatar

The good thing about science is that it’s true whether or not you believe in it. ― Neil deGrasse Tyson

Posts: 6416

Joined: Tue Dec 23, 2008 11:41 am

Location: Temecula, California

Post Sun Jan 22, 2017 5:22 pm

Re: Another star color

Doug wrote:There are three files:
Autosave.tif = HA
Autosave001.tif = OIII
Autosave002.tif = SII

Can you ID each file for me?
Image
MyAstroImages.com Photo Album. Sharing Your AstroImages On Line!
More Images.
:darkgrin:
CPC800, 60MM Classic Refractor, EON72, EON120, Atlas EQ-G, SSPro V1, SSAG, IDAS LPS Filter, TRF-2008
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gardenfish

Hypergalaxy

Posts: 1117

Joined: Fri Feb 05, 2016 9:18 am

Location: Phoenix Az.

Post Sun Jan 22, 2017 5:32 pm

Re: Another star color

Yes. Correct.
Takahashi TSA120
Takahashi TOA150
SV70T
CEM60 - PierTech2 pier
QSI6120 WSG-8
Astrodon 31mm LRGB E Series -Ha-3nm - OIII-3nm - SII-3nm

G3 Mono - ASI290MM Mini - ST80

ES 152 AR - Atlas mount
16" goto Dob

Nikon D5200 Modded

Roll-off roof Observatory
<<

Doug

User avatar

The good thing about science is that it’s true whether or not you believe in it. ― Neil deGrasse Tyson

Posts: 6416

Joined: Tue Dec 23, 2008 11:41 am

Location: Temecula, California

Post Sun Jan 22, 2017 5:55 pm

Re: Another star color

Hi Rick,

After looking at your frames, there are some problems that are contributing to the halos.

Ha = Looks Good.
OIII = Stacking Problems.
SII = Out of Focus.

This doesn't mean you can't resolve these problems, but, you'd have to work on these problems before layering them together. The star sizes need to match. If your SII has balloon stars and your Ha has nice sharp stars, then you'll see what you've got now.

The OIII, not sure if this was tracking problem, or if it was stacking problem. Something did stack correctly and the stars "stuttered".

Also, some times you need to just throw it away and learn moving forward. If seen similar results on my images and you can punch it around until looks ok. But you got to remember, GIGO. It looks like you have GI and your results are showing GO.

Not trying to be brutal...just being honest. I hope this helps.

Doug
Attachments
Ha---Looks-Good.jpg
Ha---Looks-Good.jpg (29.7 KiB) Viewed 7537 times
OII---Stacking-Problems-in-Corners.jpg
OII---Stacking-Problems-in-Corners.jpg (38.28 KiB) Viewed 7537 times
SII---Soft-Stars---Out-of-Focus.jpg
SII---Soft-Stars---Out-of-Focus.jpg (50.28 KiB) Viewed 7537 times
Image
MyAstroImages.com Photo Album. Sharing Your AstroImages On Line!
More Images.
:darkgrin:
CPC800, 60MM Classic Refractor, EON72, EON120, Atlas EQ-G, SSPro V1, SSAG, IDAS LPS Filter, TRF-2008
<<

Doug

User avatar

The good thing about science is that it’s true whether or not you believe in it. ― Neil deGrasse Tyson

Posts: 6416

Joined: Tue Dec 23, 2008 11:41 am

Location: Temecula, California

Post Sun Jan 22, 2017 6:04 pm

Re: Another star color

Now here's something you can try...This has worked for me in the past. "Tone Mapping" Check out this:
viewtopic.php?f=14&t=821

Basically what you do remove the stars and build the nebula... Very effective.
Image
MyAstroImages.com Photo Album. Sharing Your AstroImages On Line!
More Images.
:darkgrin:
CPC800, 60MM Classic Refractor, EON72, EON120, Atlas EQ-G, SSPro V1, SSAG, IDAS LPS Filter, TRF-2008
<<

gardenfish

Hypergalaxy

Posts: 1117

Joined: Fri Feb 05, 2016 9:18 am

Location: Phoenix Az.

Post Sun Jan 22, 2017 6:31 pm

Re: Another star color

Thanks for your help. No such thing as too brutal. If you dont tell me how can I learn. I will check out the tone mapping and see what happens.
Takahashi TSA120
Takahashi TOA150
SV70T
CEM60 - PierTech2 pier
QSI6120 WSG-8
Astrodon 31mm LRGB E Series -Ha-3nm - OIII-3nm - SII-3nm

G3 Mono - ASI290MM Mini - ST80

ES 152 AR - Atlas mount
16" goto Dob

Nikon D5200 Modded

Roll-off roof Observatory
<<

Doug

User avatar

The good thing about science is that it’s true whether or not you believe in it. ― Neil deGrasse Tyson

Posts: 6416

Joined: Tue Dec 23, 2008 11:41 am

Location: Temecula, California

Post Sun Jan 22, 2017 7:38 pm

Re: Another star color

If you try tone mapping, you'll recover the Nebula Signal, but, your stars will be white. Not a bad deal. I've used Tone Mapping to Help salvage images of mine.
Image
MyAstroImages.com Photo Album. Sharing Your AstroImages On Line!
More Images.
:darkgrin:
CPC800, 60MM Classic Refractor, EON72, EON120, Atlas EQ-G, SSPro V1, SSAG, IDAS LPS Filter, TRF-2008

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