Hemisphere:  Northern  ·  Contains:  NGC 4236
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NGC 4236: A Caldwell Galaxy, 


            Edoardo Luca Radi...
NGC 4236: A Caldwell Galaxy
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NGC 4236: A Caldwell Galaxy

Imaging telescopes or lenses: William Optics FLT 110 Triplet APO

Imaging cameras: SBIG ST-2000XM

Mounts: 10 Micron GM1000 HPS

Guiding cameras: 10Micron HPS System

Software: Pixinsight

Filters: Astrodon L CCD 1.25"  ·  Astrodon R CCD 1.25"  ·  Astrodon G CCD 1.25"  ·  Astrodon B CCD 1.25"

Dates:May 19, 2018

Astrodon B CCD 1.25": 21x300" bin 1x1
Astrodon G CCD 1.25": 19x300" bin 1x1
Astrodon L CCD 1.25": 51x300" -15C bin 1x1
Astrodon R CCD 1.25": 20x300" bin 1x1

Integration: 9.2 hours

Darks: ~30

Flats: ~20

Bias: ~50

Avg. Moon age: 4.50 days

Avg. Moon phase: 21.21%

Bortle Dark-Sky Scale: 3.00

Basic astrometry details

Astrometry.net job: 2084989

RA center: 12h 16' 34"

DEC center: +69° 27' 50"

Pixel scale: 1.200 arcsec/pixel

Orientation: 90.936 degrees

Field radius: 0.633 degrees

Resolution: 3056x2260

Locations: Agriturismo Poggio Del Pero, Panicale, Perugia, Italy

Data source: Traveller


NGC 4236 or Caldwell 3 is a low surface brightness galaxy observable in the Dragon constellation.

its blue hue cames from recent star formation outburst.

Picture taken during PixInUmbria 2018 star party



Edoardo Luca Radi...
License: Attribution-NonCommercial-NoDerivs Creative Commons


  • Final
    NGC 4236: A Caldwell Galaxy, 


            Edoardo Luca Radi...
    NGC 4236: A Caldwell Galaxy, 


            Edoardo Luca Radi...


Description: Annotated version

Sky plot

Sky plot


NGC 4236: A Caldwell Galaxy, 


            Edoardo Luca Radi...

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