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Old 24-07-2011, 03:20 PM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
Posts: 18,185
Helix Nebula Bicolour Narrowband

I took some O111 and S11 data last night (a surprisingly clear night)
to go with the Ha I took a week or so ago.

The S11 is a bit weak so I thought I would do a bicolour narrowband version.

I intend to add more to this later including RGB stars but for now this is the bicolour version.

There is also a crop that highlights the streaking O111 data in the centre area.

Planewave CDK17 and reducer at F4.5, FLI Proline 16803, PME mount.

http://www.pbase.com/gregbradley/image/136649935/large regular

http://www.pbase.com/gregbradley/ima...49935/original large

http://www.pbase.com/gregbradley/ima...50988/original Cropped version.


Greg,
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