Omega Centuari NGC 5139     (Click Image for 1152x824, or Full Res for 2016x1442)

It was an astounding night when this photograph was taken. A cold front passed through the prior night, the air had calmed during the day. Sirius and Arcturus were absolutely steady, not a twinkle. The cold front, still pushing through the region was overriding, compressing and stablizing the air many miles South of my location. When I started this photo at 0430hrs EST the night was dead calm with low humidities for Central Florida, mid-50% and about 27F. Dawn's light was chasing NGC5139 across the sky at the end of the 30mins exposure causing concerns about sky fog ruining the image That night my ST-4 set for 2sec exposures, SA at 2 reported nearly 6.5hrs of no corrections in RA, except when advancing film. My location is 29d 24m 26.45s North which places Omega Centuari about 15-20deg in elevation.

OTA	f: ratio	Exposure	Film	Date	Location
AP155 EDFS 1995 #95 Losmandy Titan #26	f:7	30min, ST-4	Kodak RG200S Dry Air Purge	01-17-05 Light Fog	Chiefland, Fla Map & Satellite Images
Koday Royal Gold 200 Select, unhypered, no filter, 30mins. Scanned at 2400DPI with H/P PhotoSmart. Processing in Photoshop CS, Levels and Curves.