![]() When searching the app store, you'll find many apps designed for that purpose, and not skywatching. These are the satellites that you aim your satellite TV dish at. At their extremely distant orbits, the Earth's shadow covers only a small patch of the sky, so they can appear all night long. In the night sky, geosynchronous satellites are concentrated in a strip running several degrees below the celestial equator. While observing with your telescope, you might spot one moving very slowly against the background stars. At that range, this type of satellite will be dim. To do this, they need to orbit above Earth's equator, at 22,236 miles (35,786 km) above sea level. Telecommunication and some surveillance satellites have geosynchronous orbits designed to keep them in view from the same spot on Earth at all times. If you see an object with flashing lights, it's an aircraft. Other than crewed vehicles, satellites do not have lights - and no artificial light in orbit would be bright enough to spot from the ground anyway. ![]() Most satellites shine with a steady light, but objects that are tumbling can glow and darken as they travel. The brightness of a satellite depends on its distance from you and on how much sunlight it deflects toward you, which is a function of both its flat surface area and reflectivity. Satellites can also pop into view when they exit the shadow. When a passing satellite seems to disappear, it has entered Earth's shadow - a circular patch of the sky where the sunlight can't reach it. That's why most satellites are seen an hour or two before dawn and after dusk. Orbiting satellites are visible to us because they are high enough overhead to be illuminated by sunlight, even when the sun is below the horizon for ground observers. (Image credit: Alan Dyer/Stocktrek Images via Getty Images) (opens in new tab) Otherwise your browser will warn you of security risk.The ISS' orbit is approximately 250 miles (402 km) high, so it is one of the objects that completes one orbit of the Earth every 92.5 minutes (or 16 per day). Note 2: Astroberry Server is accessible via insecure at or or secure or If you use the latter you need to trust provided certificate or install your own. Note 1: If you connect via Hotspot default IP_ADDRESS is 10.42.0.1, if you connect via wire or your home wireless network, IP_ADDRESS will be assigned by your router/access point. Connect to Astroberry desktop (default password is astroberry).Click Connect button to access Astroberry Server.Connect to an Astroberry Wireless Hotspot (default password is astroberry).Start your Raspberry Pi with the flashed microSD card.Visit or for detailed instructions and FAQ. Run 'sudo apt update & sudo apt upgrade' to keep your system up to date. Make sure it is correct before running the above command!Īfter flashing your microSD card, boot your Raspberry Pi and enjoy! It is recommended to update your system after first boot. Note: Replace sdX with your microSD card identifier. Sudo dd if=astroberry-server_2.0.1.img of=/dev/sdX bs=8M status=progress You can flash your microSD card (minimum 16GB required) using etcher.io or running the below commands in your terminal: unzip astroberry-server_2.0.1.img.zip ![]() You're ready to go right after the first boot!
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