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On 08/12/2018 at 22:44, StarlightKnight said:

Captured yesterday with ASI 120 on C9.25 on EQ Mount hand guided and lightly processed in Photoshop Elements

Fantastic detail. How does it compare to visual?

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Thanks for your kind words everyone

Visually I could only see a small dot as I was looking through a 10x50 finder. The camera field of view in conjunction with the C9.25 is only approx. 7x5 arc mins and the ISS is travelling approx.1 degree in 1 second when overhead.

Keeping it in the field of view at high magnification for visual observation would be extremely difficult.


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Thanks Grimbles

To get the image on the chip the two main things are to start off with a shorter focal length scope - I started with a 6" F5 Newt and to make sure the Finder and camera are perfectly aligned.

I also use a right angle finder with double cross hairs which ensures that when the ISS is centred it isn't hidden behind the cross hairs !

Happy hunting



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