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Elephant's Trunk - SHO - CDK12.5 - F/5.3 - QHY268m

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#1 Rouzbeh

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Posted 16 September 2021 - 07:25 PM

Taken with the CDK12.5 and the PW 0.66 reducer from our backyard over 3 nights through semi-cloudy skies.

 

The AP1100GTO performed admirably, tracking the target unguided  through the clouds and allowing data to be captured throughout the night. The subs(exposures) blocked by clouds were then deleted.

 

The QHY268m  with its very low sensitivity and very high quantum efficiency is a perfect candidate for the task.

 

Imaging telescopes or lenses: Planewave CDK 12.5

Mounts: Astro-Physics AP1100 GTO CP4

Focal reducers: Planewave Instruments 0.66x Reducer

Software: NINA - Nighttime Imaging ‘N’ Astronomy  ·  PixInsight 1.8.6 Ripley Pisinsight 1.8

Filters: Chroma 3nm OIII  ·  Chroma 3nm H⍺

 

Dates:Sept. 15, 2021

 

Frames:
Chroma 3nm H⍺: 52x300" (4h 20')
Chroma 3nm OIII: 45x300" (3h 45')
Chroma 3nm Sii: 40x300" (3h 20')

 

Integration: 11h 25'

 

Avg. Moon age: 9.14 days

 

Avg. Moon phase: 68.24%

 

Pixel scale: 0.834 arcsec/pixel

 

Field radius: 0.479 degrees

 

Link: https://astrob.in/o831ao/C/

 

 

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#2 Rouzbeh

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Posted 16 September 2021 - 07:48 PM

Ha without binning at 90% resample.

 

Frames:Chroma 3nm H⍺: 52x300" (4h 20') bin 1x1

Integration: 4h 20'

 

Avg. Moon phase: 68.24%

 

Pixel scale: 0.574 arcsec/pixel

 

Full res: 

https://astrob.in/full/hz5u8e/0/

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Edited by Rouzbeh, 16 September 2021 - 08:02 PM.

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#3 Rouzbeh

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Posted 16 September 2021 - 07:51 PM

Corners

 

 

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  • Ha_mosaic.jpg



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