Quote:
Originally Posted by multiweb
Had another look on the big screen this morning. That's the Mewlon 210 but did you use a reducer? What's your image scale, FL and FOV size in arc minutes? Trying to work out the field to expect with the CN-212.  |
Hi Marc
The Mewlon 210 is F11.5 (2415mm FL) and the Tak x0.8 Reducer/Flattener should take it down to 1932mm at F9.2.
However, I have just started playing around with NINA and a plate solve gave me a FL of 2080mm which would be around F9.9. The Sky X Pro Image Link gave me a FOV of 29x22 arc min at a scale of 0.38 arcsec/pixel.
This discrepancy is probably the result of having the focuser racked out (main mirror moved) further than the Tak ideal specs so I could insert a motorised focuser and a filter wheel.
Your CN212 as F12 should be an ideal combo for this object.
Cheers
Dennis
EDIT: just added a full res crop of the B86 region to show the view at 2080mm, F9.9, 0.38 arcsec/pixels with 60 mins Lum and 30 mins R:G:B with the ASI1600mm.