The Darkest Skies
in West Virginia

"Exceptionally clear skies and air for this eastern US site. Very dry air with some moderate winds provided visibility of 50-75+ miles during the day. At night the horizon is almost completely illuminated by cities, small towns and rural farms and ranches. Some very bright direct glare sources in the cities of Harrisonburg and Fishersville (Hospital?). The Milky Way was visible to the horizon in the SW and obscured at about 25 degrees above horizon in the NE. Very good detail in Cygnus near the zenith. Washington D.C. light dome easily visible to the ENE. With some lengthy dark adaptation, this observer was able to see 6.7 magnitude star in Pegasus."

"Light dome from Washington D.C. brightest, many smaller ones around the horizon. Milky Way easy to see especially brightest parts in Cygnus and Cassiopeia. As night progresses, however, haziness increases and contrast decreases, especially along the southwestern horizon. SQM 21.27. Glare from several lights at Wayside and visitor center very distracting, kills night vision, illuminates landscape, much brighter than Venus from this location."

"Seeing good transparency excellent, very windy, gusts to 25 mph. Sky bright all around, due west may be only area free of light domes, otherwise there are many bright light domes and glare from unshielded lights in towns, especially Luray and Stanley to northwest and southwest. Sky glow gradient from horizon to zenith, dome of Washington D.C. area to 50 degrees altitude, Harrisonburg to 30 degrees. Color seen in light domes, mixture of sodium lights and white light. At zenith, however, Milky Way in Cygnus well defined, with great rift and little rift both seen. Bortle 4 based on zenith and ZLM, definitely 5 otherwise. Good transparency helps. Sky is definitely milky, not dark, contrast is diminished all the way to zenith."

"Seeing good, transparency excellent. Bright light domes from D.C. and Front Royal dominate the north and northeast, but zenith is remarkably dark, revealing the brighter parts of the Milky Way easily. Gradient from horizon to zenith however. Milky Way invisible in dim areas like Monoceros and Gemini. Airglow appears brighter than normal because of high gradient from zenith, even toward the west where there are no bright light domes. Lots of bright glare from Front Royal, Winchester, core of D.C. light dome very bright, damages night vision, 20 degrees wide. SQM 21.33 late."

"A very windy night with strong gusts. FWHM definitely affected, probably by vibrations of the observation tower itself. Light polltion sources visible both in foreground and at horizon. A thin layer of haze evident to east, possibly part of approaching clouds. First data set virtually cloud free. Sky free of contrails. Limiting magnitude found in Pegasus. Andromeda galaxy visible, M15 requires much effort. Milky Way detail easily detectable near zenith. Sky appeared noticeably brighter than previous nights, possibly due to some airglow. I also think it may have to do with the atmospheric clarity. All other nights contained some amount of possible light absorbing clouds. The second set of images from this night do contain some clouds, but the first set is clear."

"Charles Town is easily visible to the west, the metro areas of Baltimore and D.C. have a light dome up to 30 degrees. For the most part, this area is surrounded by very bright skyglow along the horizon, though the natural terrain produces shielding that allows for comparatively good viewing. An SQM reading of 20.39 around midnight."

"Numerous direct glare sources from local farms and a building at Camp Round Meadow. A few clouds around the horizon to start but skies cleared completely by third set. Very high humidity along with warm temps causing high extinction. Sky glow from Frederick easily visible, as is the greater Baltimore-D.C. area. Milky Way is barely visible and most deep sky objects not visible."