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Ngc 7293
The Helix nebulae is the largest bright PN.
It was discovered by the German astronomer Karl Ludwig Harding with a 4” refractor in about 1824.
The PN is mag 7.6, diameter 22’, 655 light years away and only 10,600 years old.
My 9x50 finder shows the PN 1.2 deg from mag 5.2 ups Aqr, and its central mag 13.5 star is easily seen in my 12” Dobsonian telescope.
A UHC filter improves the telescopic view. The nearby mag 11.1+11.5 star pair are 19.6” apart. (In the image they are below the PN)
The attached image is from Aladin.
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