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DIY Laptop Shade / Dew Shield. In this post, I will explain how to build a dual-purpose laptop shade / dew shield for a cost of approximately £20 (GBP). As explained in Dew Formation and Prevention, the simplest way to prevent dew forming on equipment is to shield it from direct exposure to the night sky. Using this shield will help to extend ...
Jun 19, 2017 · The SSSM is a handy device which monitors the atmospheric seeing conditions during solar imaging. This SSSM can be built for a fraction of the cost of commercially available devices. You can use the SSSM to monitor seeing conditions through the day, or even to control your camera to capture images during the best seeing conditions.
Sep 11, 2017 · The pier foundation and pier are constructed from concrete, as are the shallow observatory foundations. I decided to use bags of ready-mixed concrete for the job. Mixing concrete from bulk bags of cement and ballast would certainly be cheaper, but moving and storing them would have been difficult for me. Individual bags of ready-mix are much ...
CED 214 / NGC 7822 is an emission nebula and star forming region approximately 2,600 light-years away. Acquisition: William Optics GT81, WO Flat 6AIII 0.8x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik Ha, OIII, SII 1.25″Mount/Guiding: Orion ST80, QHY 5, PHD2, Sky-Watcher NEQ6, EQMod, Sequence Generator ProProcessing: PixInsight 1.8Dates: 30th – 31st March 2021, 10th December 2021, 5th Ja
Sep 8, 2017 · Plans (PDF Format) Plans (Visio Format) Having determined the size and position of the observatory, I built a mock-up of the outer shell using bamboo canes, string and cable ties. This was a useful exercise and it gave a much better feel for the reality of the project than lines on paper.
May 13, 2013 · A dew controller enables you to manage the power output of the heater bands, and also helps to conserve battery life if you are away from the mains supply. Commercial dew heater controllers retail for £70 to £100+, but I’ll show you how to make a simple one for as little as £5. Please note that this device is suitable for heater bands at ...
Mar 12, 2020 · Set the multi-meter to the 20 volt DC setting and put the probes on the two solder pads and check the reading. If you get somewhere around +4 to +6 volts, the red (positive) probe is touching the positive (+5 volt) wire). If you get a negative voltage reading, just reverse the probes.
