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Old 18-09-2019, 08:29 AM
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diegocolonnello (Diego)
Breathing Stars

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My best PILARS

When the seeing helps


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Imaging telescope or lens:Sidereal Trading ST/250 Carbon Newt

Imaging camera:ZWO ASI1600MM-PRO

Guiding telescope or lens:Sidereal Trading ST/250 Carbon Newt

Guiding camera:QHY5L-II

Software:Starkeeper.it VOYAGER

Accessories:Roll off Obsy Canon Payne Observatory, QHYCCD Polemaster

Resolution: 2185x1612

Dates:Sept. 17, 2019

Frames: 40x120"

Integration: 1.3 hours

Avg. Moon age: 17.75 days

Avg. Moon phase: 90.23%

Astrometry.net job: 2924320

Data source: Backyard
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Old 18-09-2019, 08:48 AM
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Nikolas (Nik)
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Diego the detail in this image is outstanding. HA involved or is this just luminance?
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Old 18-09-2019, 09:27 AM
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diegocolonnello (Diego)
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It is Ha only...
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Old 18-09-2019, 06:35 PM
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muletopia (Chris)
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Hello,
The details of the nebulosity are indeed appealing.
I have a question from a beginners perspective. In my Canon capture of this object the details of the nebulosity are nowhere near extensive as yours but in the right hand pillar I find three prominent starts and in the small dark patch to the right of that pillar a single star.


Is the lack of these stars in your image due to the capture in HA or your processing?


Chris
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Old 18-09-2019, 06:50 PM
LewisM
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Cor blimey! Not 'arf bad!

(said in my worse impersonation of a Cockney)
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Old 18-09-2019, 07:17 PM
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codemonkey (Lee)
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I'm continually amazed by what you can get out of your gear with such little integration time. Amazing, Diego.
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Old 18-09-2019, 08:23 PM
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dave_galera (Dave)
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Nice image with brilliant detail and contrast
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Old 19-09-2019, 02:13 PM
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Great detail in the core Diego. Certainly quite sharp.
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Old 19-09-2019, 08:54 PM
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muletopia (Chris)
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explanation

Diego,
To illustrate the basis of my question I attach my poor image with the starts in the right hand pillar and associated dark area.
Granted you reputation on processing I guess that the lack of these stars in your image is due to the HA capture. Is this the case?


Chris
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Old 20-09-2019, 09:27 AM
JA
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Quote:
Originally Posted by muletopia View Post
.... I guess that the lack of these stars in your image is due to the HA capture. Is this the case?


Chris
Whilst not addressed to me, I suspect so. There is some evidence of this in the following Hubble Narrowband Vs InfraRed image of The Eagle attached. Of course there may also be some star shrinking involved in the processing stage.

Best
JA
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Old 20-09-2019, 09:33 AM
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Paul Haese
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Quote:
Originally Posted by muletopia View Post
Diego,
To illustrate the basis of my question I attach my poor image with the starts in the right hand pillar and associated dark area.
Granted you reputation on processing I guess that the lack of these stars in your image is due to the HA capture. Is this the case?


Chris
My multi filter image of this area a few years back barely shows those stars. The NB data has suppressed those stars. The only reason why I can see the stars is because I used RGB stars over the top of the NB data. A Ha frame on its own would well suppress some of the less bright stars in certain parts of the field.
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Old 20-09-2019, 03:29 PM
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muletopia (Chris)
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Thanks

Thank you Paul and JA.


You have answered y question nicely. A lesson for a novice to take on board.


Chris
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