Hemisphere:  Southern  ·  Constellation: Corona Australis (CrA)  ·  Contains:  IC 4812  ·  NGC 6723  ·  NGC 6726  ·  NGC 6727  ·  NGC 6729  ·  Part of the constellation Corona Austrina (CrA)  ·  The star γCrA  ·  The star εCrA
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Corona from Corona - NGC 6726, 



    
        

            Andy 01
Corona from Corona - NGC 6726
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Corona from Corona - NGC 6726

Getting plate-solving status, please wait...
Corona from Corona - NGC 6726, 



    
        

            Andy 01
Corona from Corona - NGC 6726
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Corona from Corona - NGC 6726

Technical card

Imaging telescopes or lenses: Takahashi TOA-130 APO Refractor

Imaging cameras: QSI 6162 monochrome

Mounts: Takahashi NJP Temma-2

Guiding cameras: Starlight Xpress Lodestar Off Axis Guider

Focal reducers: Takahashi 67-FL flattener

Software: Adobe Photoshop 2020  ·  Sky Safari Pro  ·  PHD2 Guiding 2.6.6 PHD2  ·  Topaz Denoise DeNoise  ·  Noel Carboni's Astro Tools for PhotoShop Noel Carboni Actions  ·  Nik Software, Inc. Nik Filters

Filters: Chroma Blue  ·  Chroma Green  ·  Chroma Red  ·  Chroma Luminance

Accessory: Kendrick Standard Dual Channel Controller


Dates:Sept. 14, 2020

Frames:
Chroma Blue: 30x180"
Chroma Green: 18x180"
Chroma Luminance: 15x180"
Chroma Red: 25x180"

Integration: 4.4 hours

Avg. Moon age: 26.22 days

Avg. Moon phase: 11.88%

Bortle Dark-Sky Scale: 7.00


Basic astrometry details

Astrometry.net job: 3855259

RA center: 19h 1' 50"

DEC center: -36° 59' 34"

Pixel scale: 1.585 arcsec/pixel

Orientation: 34.155 degrees

Field radius: 1.098 degrees


Resolution: 3880x3138

Locations: Burwood, Melbourne, Victoria, Australia

Data source: Backyard

Description

Attempting the impossible - LRGB imaging from my Bortle 7 backyard in Lockdown Stage 4, Melbourne, Australia.
Not enough data and bloody difficult to process out the LP gradients so I'm reasonably happy with this under the circumstances!
The star-forming region around NGC 6726 in the southern constellation of Corona Australis (Southern Crown) about 400 – 500 light years distant is a complex association of dust, beautiful blue reflection nebula and unusual objects referred to as Herbig-Haro (HH) objects.
NGC 6726/6727 and IC 4812 are blue reflection nebulae, where bright stars are embedded in a large cloud of dust which reflects the blue light of the stars.
NGC 6729 is a butterfly-shaped emission/reflection object that is a variable nebula, powered by the irregular variable star, R Coronae Australis (R CrA). R CrA was discovered about 100 years ago. HH objects are shown as delicate, small arcs of glowing gas. They originate as energetic outflows from embryonic stars that are still forming and cloaked inside gas and dust. Bernes 157 is dark nebula that is so dense that stars inside the nebula and behind it cannot shine through. (Astrodon)

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Corona from Corona - NGC 6726, 



    
        

            Andy 01