Quote:
Originally Posted by rodroger
Hi Dennis, 
As for using the 3x Barlows lens for the shot, that would make sense as this is my first choice for Double on this instrument.
Rod |
Hi Rod
I’ve imaged Sirius A and B through my Tak Mewlon 180mm and Celestron C9.25 and those results produced a much fainter Sirius B, albeit at the much longer effective focal lengths I was operating at.
However, I must confess that although I have heard about the wonderful images to be had from quality, well collimated Newtonians, I’ve never owned or looked through one; hence I might just be guilty of being blinded by my experiences limited to the Tak Mewlon and Celestron SCT? Hmm, methinks a good quality Newtonian might well be my next ‘scope!
Based on the image measurements, FOV calculations and assumptions I have made, plus your obvious skills and experience, located at a distance of 13 to 15 pixels you have an excellent candidate for having recorded the Pup. It certainly is by far the brightest recording I have ever seen, hence my initial uncertainty.
Congratulations, and please accept my apologies for my initial, probing uncertainty.
Cheers
Dennis