Web10 rows · The Bortle scale is a nine-level numeric scale that measures the night sky 's brightness of a particular location. It quantifies the astronomical observability of celestial objects and the interference caused by light pollution. John E. Bortle created the scale and published it in the February 2001 edition of Sky & Telescope magazine to help ... WebFeb 11, 2024 · Bortle 3. 0.90. Chris. # 2/11/2024. · 294 views. Hello everyone, I am moving to a rural town, and the nearest major light pollution is an hour from me. The light pollution is around Bortle 7 to the NW and everywhere else around me for about 3 hours is Bortle 2. I am just wanting to see what experience it will be like with data acquisition from ...
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WebI typically shoot around a Bortle 5 but can get to a Bortle 3 within an hour. If the filter is not worth it I was just going to throw the money towards a 10" Dob for visual observing (particularly next year's eclipse) My current setup: WebAurora Central High School. May 2024 - Present5 years. 11700 E 11th Ave, Aurora, CO 80010. bog fieldpod chair
WebApr 19, 2024 · The county is firmly in Bortle 3 skies; Bortle 2 at the very tip of the peninsula. This location could easily be a one night up and back trip. Picked Cave Point County Park for the Milky Way spot and would not be disappointed. With beautiful rock cliffs and crystal clear water, Door County is a beautiful place and would become a go-to spot … WebNov 22, 2024 · Bortle Class Description NELM Reading Approximate SQM (mag/arcsec2) 1: Excellent dark sky site: 7.6 - 8.0: 21.99-22.0: 2: Typical truly dark site: 7.1 - 7.5: 21.89-21.99: 3: Rural sky: 6.6 - 7.0: 21.69-21.89: 4: Rural/suburban transition: 6.1 - 6.5: 20.49-21.69: 5: Suburban sky: 5.6 - 6.0: 19.50-20.49: 6: Bright suburban sky: 5.1 - 5.5: 18.94 ... Light pollution from a commercial greenhouse turns this Bortle Scale … With the aid of an Astronomik 12nm Ha filter, I can capture deep-sky images … Perhaps the strangest and most understood part of the deep-sky astrophotography … Previewing my 3-minute light frames in Adobe Bridge before stacking. Focal … WebWhat is the Bortle Scale? The Bortle Scale is a scale from 1 to 9 that measures how light-polluted a given location is. A Bortle class of 9 is the most light pollution — think downtown in a major city. A Bortle class of 1 is the least light pollution — think somewhere very remote and away from most civilization, like a desert. bog fee waiver shasta college