Originally Posted by multiweb
Thanks Andrew. I tried to load this shot
. Image scale is 2.97asp, 280mm aperture, 520mm FL.
Marc, it solved in about 20 secs on my Atom powered notebook with the Tycho2 catalog. You can get the overlaid version and ini file from here.
Copy the ini to the same directory the image is in and it should work for you. The hint I used was:
Custom : NGC2070
Sensor size : 22.5 x 18 mm
Focal length : 520
Here are the basic results (in degrees):