Whirlpool Galaxy (M51) in LRGB

Technical card

Imaging telescope or lens:Altair Astro RC250-TT 10″ RC Truss Tube

Imaging camera:ZWO ASI1600MM-Cool

Mount:Skywatcher AZ EQ-6 GT

Guiding telescope or lens:Teleskop Service TSOAG9 Off-Axis Guider

Guiding camera:QHYCCD QHY5III174

Focal reducer:Astro-Physics CCDT67 – 0.67x Reducer

Software:Main Sequence Software Seqence Generator Pro, Pleiades Astrophoto PixInsight

Filters:Optolong CLS – CCD (V4) 36mm, ZWO red, ZWO green, ZWO blue

Accessories:ZWO EFW, MoonLite CSL 2.5″ Focuser with High Res Stepper Motor

Resolution: 3892×2892

Dates: March 3, 2017, May 17, 2018

Optolong CLS – CCD (V4) 36mm: 90×120″ (gain: 75.00) -20C bin 1×1
ZWO blue: 25×60″ (gain: 139.00) -20C bin 1×1
ZWO green: 25×60″ (gain: 139.00) -20C bin 1×1
ZWO red: 28×60″ (gain: 139.00) -20C bin 1×1

Integration: 4.3 hours

Avg. Moon age: 3.74 days

Avg. Moon phase: 16.80%

Astrometry.net job: 2065334

RA center: 202.470 degrees

DEC center: 47.199 degrees

Pixel scale: 0.549 arcsec/pixel

Orientation: 269.057 degrees

Field radius: 0.369 degrees

Locations: Berga Resort, Berga, Barcelona, Spain


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