The Darkest Skies
in Mississippi

"A very calm, humid and clear night. Dewfall occurred during data collection, however dew heater prevented lens fog. Multiple light domes evident from site, as well as a continuous glow along horizon in all directions. Airglow was present. Andromeda galaxy easily visible, Beehive (Pegasus) visible with medium effort. Prominent dust lanes in Milky Way visible at zenith, but not below ~50 degrees. Limiting magnitude found in Pegasus."

"On Horn Island a half mile east of the ranger station. Mid island with a break in the high dunes to the north and some low dunes to the south just blocking the direct glare from the ships in the gulf. Very clear night with 1% cloud cover. Some low smoke to the north over the shipping yard. Some low clouds and haze to the southwest. Air is steady and seeing is good. Milky Way is easily seen at the end of astronimical twilight with Scutum and Sagittarius star clouds visible. Dust lanes ad some detail evident to the south up to Cygnus overhead. Most apparent light dome is the ship yard to the north in Pascagoula. 50 degrees across and 40 degrees wide. East is dark wuth some haze along the horizon. To the south, 6 large ships are off shore with lights on. To the west there is another lighdome easily visible, but not as intense as the ship yard."

"On Petit Bois island, west end. Setup on the flat sand spit due west of the weather station and signal lights structure. Transparency is good with some smoke to the northwest from earlier activity in the ship yard area of Pascagoula. Some visible haze over the Chevron plant to the north. The horizon is busy with visible lights. 6 ships are visible inthe gulf as they wait to come into port. Transient lights of fishing and shrimp boats are visible as they moce through the channel between Petit Bois and Sand island. There is one oil rig visible on the southern horizon. The ship yard in Pascagoula to the northwest and the Chevron plant to the north create the largest and most intense light domes. THe CHevron refinery light dome extends at least 15 degrees along the horizon. Milky Way is still easily visible, especially at astronomical twilight when it is over the gulf. DUst lanes visible. Milky way begins to fade 5 degrees above the horizon in the south. In the north it fades out much higher due to light domes, just past Cassiopeia."

"SQM of 20.47 at 2035 local time. Only fair transparency and seeing. Some fast moving clouds. High humidity. Milky Way visible from 20 degrees above north horizon. Great rift visible, Saggitarius cloud not easily visible, Scutum cloud not visible. Milky Way about 10-12 degrees wide, but faint and no fine details. To the NW a blue white light dome easily seen. Due East is the Clarksville lightdome almost 25 degrees high and 15 degrees wide. Core is bright. Adjacent to the light dome is a spotlight (which we determined was coming from the cemetary here in FODO park). To the West and Southwest is another lightdome fainter than Clarksville, but brighter than the Milky Way"