Open Cluster M39 in Cygnus
Open Cluster M39 (NGC 7092) is an open cluster in the Cygnus constellation. It was discovered by Charles Messier in 1764. M39 is at a distance of about 800 light years away from Earth. Its age is estimated to be from 200 to 300 million years.
Photo Details
Telescope: FSQ106EDX (530 mm) Takahashi
Camera: Sbig ST-8300, Filter wheel, Baader 36mm LRGB filters
Mount: NJP Takahashi
Guiding: Off-axis SS Orion autoguider
Exposure: L 15x300sec, R 2x300sec, G 2x300sec, B 2x300sec
When: August 2014
Other information: very good transaparency, good seeing
Photo Details
Telescope: FSQ106EDX (530 mm) Takahashi
Camera: Sbig ST-2000XM, Filter wheel, Baader 1.25" LRGB filtes
Mount: NJP Takahashi
Guiding: Self-guided
Exposure: L 1x600sek, R 1x600sek, G 1x520sek, B 1x600sek
When: October 2010
Other information: foggy, medium to bad seeing condition