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 NGC 2857 (Arp 1) + Arp 285 

Full Resolution 1474 x 1463


Arp 1 and Arp 285 and the Tidal Tail zoom

Inverted image showing the Tidal Tails of Arp 285

Luminance Only


Optics: GSO RC 10" Reduced to F/5.3 1320mm. With AP-CCDT67 - Astrograph Ritchie-Chrétien
Mount: AP Mach1 GTO on Gemini Q-Lock tripod
Camera: ATIK 4000LE with SX USB Filter Wheel
Filters: Baader LRGB 2"
Guiding Systems: SX OAG with SX Lodestar
Dates/Times: 1 Febbraio 2011
Location: Pragelato (Torino) - Alps - Italy
Exposure Details: L:R:G:B => 255:40:40:40 = > (17x15)bin1:(4x10)bin2:(4x10)bin2:(4x10)bin2 [num x minutes]
Cooling Details: -20 °C
Acquisition: Maxim DL/CCD, Perseus
Processing: CCDStack2, PS CS2
Mean FWHM: 3.39
SQM-L: 21.19