Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  30 Cyg  ·  31 omi01 Cyg  ·  32 omi02 Cyg  ·  36 Cyg  ·  40 Cyg  ·  43 Cyg  ·  44 Cyg  ·  46 ome02 Cyg  ·  50 alf Cyg  ·  51 Cyg  ·  55 Cyg  ·  56 Cyg  ·  57 Cyg  ·  61 Cyg  ·  62 ksi Cyg  ·  65 tau Cyg  ·  67 sig Cyg  ·  68 A Cyg  ·  B343  ·  B344  ·  B345  ·  B346  ·  B348  ·  B349  ·  B350  ·  B351  ·  B352  ·  B353  ·  B355  ·  B356  ·  And 667 more.
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NGC 7000 ‘widefield’, Tom Gray
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NGC 7000 ‘widefield’

Getting plate-solving status, please wait...
NGC 7000 ‘widefield’, Tom Gray
Powered byPixInsight

NGC 7000 ‘widefield’

Equipment

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Acquisition details

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Description

Not satisfied with the contrast in monochrome, I added a few RGB frames to my LHa frames. Whether due to the rising moon, dew or failing to close the filter slide properly, I had some banding on one edge of the image, and cropped out the centre of my ‘widefield’ image of this region - note the ridiculously small FOV with my tiny 2/3 Sony CCD chip.

Acquisition as per my last image, although the waning gibbous moon interfered with this, and image resolution is poor at 47”/px. The HII regions and nebulosity that make up NGC 7000 and IC 5070 show up in the middle of the image, but the starfield is rather a mess.

Comments

Revisions

  • NGC 7000 ‘widefield’, Tom Gray
    Original
  • NGC 7000 ‘widefield’, Tom Gray
    B
  • NGC 7000 ‘widefield’, Tom Gray
    C
  • Final
    NGC 7000 ‘widefield’, Tom Gray
    D

B

Description: I think this is a much better balance of colour and detail - not over-saturated and better contrast. This is an LRGB image (26x60s) blended with 40% overlay of Ha (25x60s). I removed the incomplete green channel and interpolated with synthetic green. Star and noise reduction all processed in Startools v1.7

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C

Description: I've reprocessed this using the new Ha accent mode in LRGB composite module in Startools 1.8 alpha. Amazing how it identifies and accents the HII emissions without distorting star colour. I'd be very interested in your feedback on this revision.

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D

Description: My final tweak - a little more deconvolution and smaller stars, help accentuate the Ha emissions in this area around central Cygnus.

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Sky plot

Sky plot

Histogram

NGC 7000 ‘widefield’, Tom Gray