Observation

This evening, after a long time, I resume the evening observations with my telescope. I have a Skywatcher Newtonian telescope with a diameter of 130 mm and 900 mm focal length with a focal ratio f/6.9. My attention in these evenings, will be concentrated on Mars, since in this period it is very close to the Earth, about 99 million km.

This post is also available in: Italian

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