Stargazing and riding singlespeed bikes Blog

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Sol from the garden on April 9

A quick look at the sun through a Coronado PST on a Celestron LCM mount. Both borrowed from the public observatory I work for in my spare time. Not much going on though. Only...

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Jupiter April 8th, insane seeing

…insane, to our standards that is. It’s not often we get 1.38 seeing. Had a good and loooong look at Jupiter. The red dot was really red, bright but dark. At times I could...

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Castor & fresh Moon on March 30th

A clear night right at the start of my weekend and a darts match on the telly: goodbye, I’m off playing outside then! Out with the 8″ dobsonian! A setting and still young moon...

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ATM part 4 – testdriving!

Today I mounted the primary mirror. And then I had to wait until 10PM to test-drive the dobson! Without any collimation the view was okay. It wasn’t even half as bad as I expected!...

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ATM part 3.5 and Siril

Yesterday I figured out were to put the three holes for the mirror cell. A day earlier I field tested the telescope by pointing it at the moon and just simply placing the mirror...

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ATM part 3 – punching holes

Yesterday I visited fellow amateur astronomer Bert. He has loads of experience with ATMing dobson telescopes and was willing to help me out installing the optics in my dobson. We used Jan van Gastel’s...