ngc7293 Helix Nebula (bi-colour)


Chris Heapy

Macclesfield, UK

Scope: Televue NP127is refractor
CCD: Atik490EX @ 1×1 binning
Mount: 10-Micron GM2000HPS-II
Guide: unguided
Filters: Astrodon 3nM H-alpha and OIII
Data: 13 x 900s Ha, 7 x 900s OIII

All image data aquired from my back garden oberserving site in Macclesfield, UK.

The Helix nebula is a large and beautiful planetary nebula located in the constellation of Aquarius. Sadly, for us in the UK it is always very low down near the horizon and consequently is never seen at its best. The Helix can only be glimpsed from an observing site with a good Southern horizon, and imaging this object from 53degN is fraught with difficulties. Getting any sort of image is an achievement so I’m particularly pleased with being able to show the main features plus parts of the outer shell. This is a bi-colour narrow band image using H-alhpa and OIII filters.