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Contains:  NGC 3521
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NGC 3521, 


            Stefan Westphal
NGC 3521

NGC 3521

Technical card

Resolution: 2117x1583

Dates:Feb. 20, 2015Feb. 25, 2015March 15, 2015April 18, 2015

Baader Planetarium 36mm Blue: 23x360" -20C bin 1x1
Baader Planetarium 36mm Green: 23x360" -20C bin 1x1
Baader Planetarium 36mm Luminance: 55x360" -20C bin 1x1
Baader Planetarium 36mm Red: 23x360" -20C bin 1x1

Integration: 12.4 hours

Darks: ~17

Flats: ~125

Bias: ~160

Avg. Moon age: 15.52 days

Avg. Moon phase: 20.58%

Bortle Dark-Sky Scale: 3.00

Mean FWHM: 3.45 job: 635437

RA center: 166.509 degrees

DEC center: -0.013 degrees

Orientation: 178.557 degrees

Field radius: 0.529 degrees

Locations: Defersdorf, Stein bei Nürnberg, Bayern, Germany; Vockenroth, Neuhof an der Zenn, Bayern, Germany; Kreben, Westmittelfranken, Bayern, Germany


Image data:
Date: 20./25.02.,15.03.,18.04.15
Location: Vockenroth / Kreben
Telescope: 10"Newton f4,8
Camera: Atik 383L+ at -20°C
Integration time: LRGB 330:138:138:138min at 6min
Calibration data: 17 darks, 4x31Flats, 160Bias
Processing: Deep Sky Stacker, Fitswork4, Photoshop Cs 6



Stefan Westphal
License: None (All rights reserved)


  • NGC 3521, 


            Stefan Westphal
  • Final
    NGC 3521, 


            Stefan Westphal

Sky plot

Sky plot


NGC 3521, 


            Stefan Westphal

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