Stellarium portable9/12/2023 ![]() ![]() For example, a Class 1 Bortle sky means that one can observe M33 ( Triangulum Galaxy) as a direct-vision naked eye object. The Bortle scale uses astronomical observations to measure the amount of light pollution for a given location. This is an appropriate description of my night sky quality, as I live in the center of a medium-sized city (Population of 130,000). For example, my Class 8 backyard sky has the title of “City Sky”. Unfortunately for many backyard astrophotographers, their primary imaging location is much farther down the Bortle scale then they would like. There are nine levels to the Bortle scale with Class 9 being the most extreme amount of light pollution. ![]() The Bortle scale is a way of measuring the quality (brightness) of the night sky for a particular location. Aside from the opportunity to collect astrophotography images with improved signal, I am also able to see many more stars in the night sky from my backyard visually. I later moved from a house under Bortle Class 8 skies to a Class 6, which made a big difference in the amount of light pollution I observe from home. As discouraging as these readings may sound, it doesn’t mean that you can’t enjoy astronomy (and astrophotography) in conditions like this. The sky quality at my home is a class 8 on the Bortle scale, which is the second brightest sky possible. I have personally battled with light pollution in my backyard when taking deep sky astrophotography images. There are a number of ways to measure how much light pollution affects a given location (SQM, NELM), but my personal favorite way to gauge the quality of a location is the Bortle scale. These colors represent the amount of artificial light in the area, and how bright the night sky will look.Ī light pollution map showing the location of my backyard One of the easiest ways to identify the brightness of your night sky is to use the Bortle scale.Ī light pollution map will show that a large city radiates white to red from the center, and rural areas will appear green to blue. You can free download Stellarium Portable and safe install the latest trial or new full version for Windows 10 (x32, 64 bit, 86) from the official site.You may have noticed that amateur astronomers and astrophotographers will often describe their sky quality reading when posting pictures or discussing observations. With Stellarium Portable you can take astronomy with you wherever you go. And of course, with the total certainty that it will not leave a single trace on the computer on which it runs. Stellarium Portable has the same features as in its original version, but the possibility of easily transporting it on a flash memory, flash drive or other external storage device is added, so you can use it on any computer. Choose a place on our planet and an hour to contemplate your sky. Join constellations, draw and interpret their form so that it is much easier for you to identify them. An impressive 3D sky for you to explore with complete freedom, as if you saw it with your binoculars or your telescope. With Stellarium Portable you can see stars, constellations, planets, nebulas, etc., as if it were a window to the universe. Otherwise, Stellarium Portable has the same characteristics as the original Stellarium. Being a portable application, you can take Stellarium with you wherever you go, keeping all the settings and parameters you set in the program. As its name implies, Stellarium Portable is the pocket or portable version of the Stellarium application, a simple utility that will allow you to observe the planetarium from your computer. ![]()
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