last night same set up

calm sky helps
C8 asi120mm IR filter

Mark this may help

https://www.lcas-astronomy.org/articles ... ry=general

so are is close in shot no APD vs APD

face view

normally screen apodization filters used to to mitigate "seeing" are only used on planets due to spectrum grating overlap however there is now such a filter that is a variable ND filter that you can place in optical path that does not create unwanted spectrum overlap since daytime seeing is usually ...

south polar cap

cak omega filter
others quark

a lot of comets have green color
what is unusual is green head ruddy brown tail

mak7

Sodium Magnesium CalciumK

same canon camera and apo66

thx i tried BW camera with 66mm apo

and also tried to pick up sodium signal (was weak)

older BW video camera 7 14 sec

a couple of more from last night
xterminator - color 16 and 20 sec

mallincam xterminator

ok

good old days of video
weather was a bit of a problem
16 seconds
70mm F1.2 lens

yes

yes i was tracking
65miles north of nyc

canon 50mm camera

they are a good marriage with quark combo

no Ha
i add blue for old film effect

set up

bigger brother to 3 inch