[Daveskywill (David)]

Hi:

I've obtained better horsehead nebula pictures using my Celestron RASA and

Nikon D800 instead of the Meade LX200GPS 10"F10 mount, scope and 80mm.

Since the building of that older observatory, I've moved to Plymouth, Indiana,

just 8 miles sw of Bremen where now my parents have bought a nice duplex

home and soon after I get out of this rehabilitation group home, Shady Rest

I'll someday be out and ready to re-build my observatory on my sister Lisa's

and Kenny's (her husband's) place.

But this one artifact on (After I think about it, it's on all my astrophoto's)

Is of a purple equalateral triangular halo. And it seems to move the opposite

direction of the stars when I slew. And you see in this one wide-angle

shot of the Horsehead, there are even 2 and I don't know why there isn't

even a 3rd one. But could someone please diagnose this problem?

What should I do to fix it?

Thanks

David