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It's Time for Space

Stories and ideas from a hobby astronomer. A fair share on gear, as telescopes and cameras are needed for our way of space travel.

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Astrospot Vikerfjell - Best/closest Bortle class 3 site from Oslo?

See map. Vikerkoia https://www.lightpollutionmap.info/#zoom=13&lat=8500088&lon=1112008&layers=B0TFFFFFFF Atlas 2015 Zenith sky brightness information Coordinates: 60° »

Olav Norrud Olav Norrud 14 December 2017

FT/HSM motors with focusers of TS/WO/Chinese telescopes

The Optec QuickSync focuser motor series FT20/FT30/FT35 is sold Optec or branded by Starlight Instruments as the Handy Stepper Motor series HSM20/HSM30/HSM35, »

Olav Norrud Olav Norrud on astrogear, focusers, astrophotography 21 October 2017

Using Panasonic mFT/mirrorless cameras with Sky-Watcher Star Adventurer mounts

Sky-Watcher sells a range of shutter-release adapters to their Star Adventurer and Star Adventurer Mini tracker mounts, but not for Panasonic. Dosn't matter if the other »

Olav Norrud Olav Norrud 17 August 2017

Chasing Astronomical Seeing: Trying global forcast services

If you live in North America, or (to some extent) UK and Australia you have local atmospheric seeing forecasts available, like the Canadian If not, or »

Olav Norrud Olav Norrud 03 May 2017

Obtaining correct imaging sensor distance - Backfocus calculation tricks

This writeup originated from a couple of friends asking about "rules" :-) The text applies primarily to optical trains where you have introduced a unit of »

Olav Norrud Olav Norrud 02 May 2017
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