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PN G020.9-11.3 a.k.a. PHR 1911-1546

Image

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About this observation
Observer
Peter Goodhew FRAS
Time of observation
01/07/2020 - 10:33
Object
Astrodon 5nm H-Alpha filter: 20x1800" bin 3x3 Astrodon Blue: 10x300" bin 1x1 Astrodon Green: 11x300" bin 1x1 Astrodon Lum: 21x30
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: 20x1800" bin 3x3 Astrodon Blue: 10x300" bin 1x1 Astrodon Green: 11x300" bin 1x1 Astrodon Lum: 21x30

A faint circular diffuse evolved planetary nebula in the constellation of Sagittarius. I believe that this is the first colour photograph of this object, and the first amateur photograph taken.
It was discovered on 29 June 1998 by the MASH (Macquarie/AAO/Strasbourg H-Alpha) team using the Anglo-Australian Observatory UK Schmidt Telescope (AAO/UKST) H-alpha survey.

Because it is so faint the narrowband data was captured at bin 3x3.
The central star of the planetary nebula (CSPN) is clear visible as the blue star that is dead centre.

Reference: Monthly Notices of the Royal Astronomical Society, 373, 79-94 published November 2006.

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