Here’s last night’s attempt:
http://www.mikemac.com/Astrophotos/M42-20190227.png
I think it’s better than last month’s version. What do you think?
I did get a weird light falloff in my last half dozen B images. It’s shown in
the PHD2 tracking graph:
http://www.mikemac.com/Astrophotos/2019-02-27%2023_55_50-Greenshot.png
Orion was getting low (< 30degrees) in the West at the time. I initially
thought the house was starting to obscure it but the falloff is too gradual and
there’s no sign of the house in any of the effected images. But if it wasn’t
the house, I have no idea what caused the falloff.
I also couldn’t get APT’s plate solver by PlaneWave to work at all. I was going
to try to shoot NGC 2903 but my star alignment isn’t good enough to use dead
reckoning. So I tried the plate solver to see if it could help out. But it
couldn’t solve for where I was vs where I wanted to be. So I figured I was too
far off. So I slewed over to Orion and tried plate solving there too. And it
couldn’t solve that one either! As shown below, I think I was close enough that
it should have been able to solve the location. So i must be either doing
something terribly wrong or something isn’t setup right. More investigation to
come.
http://www.mikemac.com/Astrophotos/2019-02-27%2021_26_28-Greenshot.png
Mike McDonald
mikemac@xxxxxxxxxxx
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