M42 in infrared

[tornado33]

Howdy
I used my infra red filter that passes IR light longer then 800 nm on M42 with the 10 inch f5.6 newtonian and modded 350D camera
1x10 mins iso 400, processed in iris, ps and noiseware, cropped and resized in Paint shop pro.
Note the xtra stars not normally seen near the Trapezium, shining in IR light that penetrates the nebula.
Scott

[h0ughy (David)]

wow, now add that info to the other stuff, building a better picture of the orion complex

[Lee]

Thats very cool Scott.....

[[1ponders] (Paul)]

Definately way cool, Scott. From your stars I gather it's harder to track doing infrared?

[Lee]

You'd need a separate guidescope or pickoff prism in front of the filter I'd think - unless you can see at 800nm.... which would be difficult....

[[1ponders] (Paul)]

From memory Scott manually guides with an special off axis guider so I don't know how that would effect it.

[Lee]

It would have to supply unfiltered star light to the guiding EP.... looking through a filter blocking below 800nm would be like looking through a piece of aluminium foil me thinks......

[tornado33]

Howdy
Yes my guider uses a pickoff prism ahead of any filter, built into the foccuser itself, requiring a massive 8 inch hole in the side of the scope. The wind was the main issue here.
Scott

[h0ughy (David)]

Originally Posted by tornado33

Howdy
Yes my guider uses a pickoff prism ahead of any filter, built into the foccuser itself, requiring a massive 8 inch hole in the side of the scope. The wind was the main issue here.
Scott

No more baked beans for this man............. yeah was windy the other night. But if you saw where Scott works from it is very sheltered. So that "breeze " would have been very bad and strong. Scott is unprotected from the westerlies but he is covered by all the other possibilities by the house and garage.

[tornado33]

Actually the fence does slow W winds a little too
Scott