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Two rarely-imaged planetary nebulae: PN G016.3-02.3 and M1-46 in Scutum

Image

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About this observation
Observer
Peter Goodhew FRAS
Time of observation
17/07/2020 - 14:21
Object
PN G016.3-02.3 and M1-46 in Scutum
Observing location
Fregenal de la Sierra, Spain
Equipment
APM TMB 152 LZOS Refractors
10Micron GM2000 HPS mount
QSI6120wsg8 cameras
Exposure
Astrodon 5nm H-Alpha filter: 52x1800" bin 1x1 Astrodon Blue: 27x300" bin 1x1 Astrodon Green: 22x300" bin 1x1 Astrodon OIII 3 nm:

Two very rarely imaged planetary nebulae - and both within a narrow field of view.
I could only find one other, much wider field, image of them at http://www.atacama-photographic-observatory.com/photos/0088_B312_HOLRVB_a.jpg
M1-46 is tiny and intensely bright - so bright it resembled a star - so processing was needed to make its intricate structure visible. It is almost purely Ha, whereas PN G016.3-02.3 is predominantly OIII.

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