This is Jones 1. I got a good shot of it in my early days at Breckland Astro Soc. And again, on wednesday night this wipsy planetary nebula was picked up with some 30 second shots on the Atik 383L. I combined about 15 luminance (70% weighting) with 4 of each colour. The Red images showed virtually nothing. A very blue-green large puff of gas, with the central star the bluish one of the little asterism that has gathered there. The star is a white dwarf which is pumping out ultraviolet radiation that is being somehow absorbed by oxygen ions (with two electrons missing), and re-emitted at that turquoise wavelength of around 500nm that our eyes are particularly good at seeing at night. This thing is visible in a large scope, but only just. It lives directly above the square of Pegasus (well it does in my mind anyway).
Friday, 30 September 2011
The Jones Nebula
This is Jones 1. I got a good shot of it in my early days at Breckland Astro Soc. And again, on wednesday night this wipsy planetary nebula was picked up with some 30 second shots on the Atik 383L. I combined about 15 luminance (70% weighting) with 4 of each colour. The Red images showed virtually nothing. A very blue-green large puff of gas, with the central star the bluish one of the little asterism that has gathered there. The star is a white dwarf which is pumping out ultraviolet radiation that is being somehow absorbed by oxygen ions (with two electrons missing), and re-emitted at that turquoise wavelength of around 500nm that our eyes are particularly good at seeing at night. This thing is visible in a large scope, but only just. It lives directly above the square of Pegasus (well it does in my mind anyway).
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