NGC7640 Glalaxy
NGC 7640 is a barred spiral galaxy. It lies at a distance of 19 million light-years from Earth. NGC 7640 has a diameter of approximately 59,000 light-years.
Photo Details
Telescope: Celestron C8N (1000mm)
Camera: Sbig ST-2000XM, Sbig Filter wheel, Baader 1.25" HLRGB filters
Mount: NJP Takahashi
Guiding: Self-guided
Exposure: LRGB 4h L 18x600sek, R 2x600sek, G 2x600sek, B 2x600sek
When: August 2011
Other information: good transparency, good seeing