What colour is the running man nebula?

[Kaptain Klevtsov]

Checking through my subs of the M42 area I find that he's on the CLS filtered luminance frames, but not on either ha or OIII. Is this a reflection nebula and therefore not good for narrow band, or do I need yet another narrow band filter? He shows up OK on DSLR images as blue so I'd guessed that he should show up well in OIII, but nothing on the chip.

Captain Chaos

[CELESCOPE]

its a reflection neb CC done mine though with the cls filter

http://stargazerslounge.co.uk/index.php?topic=10179.0

Rog

i have tried him with the blue filter , it was ok , but not as good as the cls, could try him unfiltered though.

[MartinB]

CC, a CLS normally but for an achro I think the blue would be a very good choice.

[Kaptain Klevtsov]

Thanks guys, blue it is when the filter arrives. CLS for now though if I ever get another go. Forecast for cloudy for ever at the moment.

Captain Chaos