Since I did M13 one night, I had to do M92 the next since it was the next one
in line in the heavens:
http://www.mikemac.com/Astrophotos/M92-2019-05-25-RGB.png
Still no L channel. I think I’m going to have to take my EFW apart and double
check everything. And rotate all of the filters one spot. That will put the
opaque filter in the first slot so that it’s the one exposed to the world when
the EFW isn’t attached to the scope. Let it collect all of the dust.
And redoing my bias frames last night was only partially successful. APT
generated filenames include the time to make them unique. And that normally
works. Unless you’re taking 32/1000000 of a second exposures. Then APT can
actually try to do two images in the same second, using the same filename.
Windows throws the “.fit” portion away for the second file and uses a portion
of the timestamp as the file type. So I ended up with a bunch of files of type
“000032S_1C”. And worse still, they’re all corrupted and only 2KB in length
instead of the normal megabytes. I guess I’ll need to add a 1 second delay
between taking each bias frame.
Mike McDonald
mikemac@xxxxxxxxxxx
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