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M57 - The Lord of The Rings (final version)


paulobao

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Thanks :-). I worked at f/6.6 approx so a focal length of approx. 1540 mm (about 60.6 inches).

Here another version...maybe the best of the bunch.

It is a lesser stretched image. We can clearly see the colour diference between the 2 inner stars.

m57ltimaverso3full900x9.jpg

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Thanks again.

Jove, the answers are:

Ha - 120 min expos.

L - 120 min expos.

R - 35 min expos.

G - 35 min expos.

B - 35 min expos.

C9.25 is a Celestron C9.25

FR - a focal reducer

QSI532WS-M1 - is a CCD camera from QSI.

Regards,

paulo

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Thanks :-). Now I'm testing an OAG with my setup to avoid diferential flexure in the long time exposures. I will try this one again with this new acessorie. Hope to have good weather at the new moon!

Regards,

paulo

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