Triffid under the Moon

[billdan (Bill)]

Hi Guys,

A quickie from last night 19x300sec subs.

Cheers
Bill

[Atmos (Colin)]

Looks pretty good, rich and vibrant!

[strongmanmike (Michael)]

That's actually quite good Bill, I like it a trooper imaging under a full moon ..some tilt there I see, can you adjust that out..?

Mike

[janoskiss (Steve H)]

That looks brill but I see no Moon!

[RickS (Rick)]

Nice colour and depth, Bill.

[billdan (Bill)]

Thank you all for the generous comments, Mike I think the tilt you are seeing is mis-collimation.

As soon as I did the flats I knew straight away my collimation was off, The brightest spot of the flats were not dead centre but two thirds further up the frame.

I'll have another go Friday night and maybe get 3 hours of M20 data and make sure collimation is spot on.

Thanks
Bill

[Placidus (Mike and Trish)]

Fantastic result for a full moon shining down the barrel.

Looks especially good with M21 sparkling away at bottom right.

Best,
Mike

[gregbradley]

Nice shot for short exposure and a moon.

I think you'll find that is tilt and not collimation. Collimation affects the whole field not just one side or corner (at least as far as I understand it).

I have perfected a procedure to correct tilt as it can be frustrating. PM me if you want the rundown.

Greg.

[strongmanmike (Michael)]

Originally Posted by billdan

I'll have another go Friday night and maybe get 3 hours of M20 data and make sure collimation is spot on.

Thanks
Bill

I wish you clear skies (and me too, predicted to be clear here Sat night )

I think it is tilt but if you manage to collimate it out, great

Mike

[Shiraz (Ray)]

gosh, that's good.

yep, looks like tilt to me as well - annoying, but can be fixed.