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Contains:  M 101, NGC 5457
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Pinwheel Galaxy (M101) in HaLRGB, 


            Jose Carballada
Pinwheel Galaxy (M101) in HaLRGB

Pinwheel Galaxy (M101) in HaLRGB

Technical card

Resolution: 2328x1760

Dates:June 4, 2019June 7, 2019June 8, 2019June 18, 2019

Astrodon B Gen.2 E-series 36mm: 36x180" (gain: 75.00) -20C bin 1x1
Astrodon G Gen.2 E-series 36mm: 38x180" (gain: 75.00) -20C bin 1x1
Astrodon HA 36mm - 5nm: 12x600" (gain: 200.00) -20C bin 1x1
Astrodon L Gen.2 E-series 36mm: 175x180" (gain: 75.00) -20C bin 1x1
Astrodon R Gen.2 E-series 36mm: 34x180" (gain: 75.00) -20C bin 1x1

Integration: 16.1 hours

Avg. Moon age: 6.73 days

Avg. Moon phase: 37.75% job: 2782567

RA center: 210.801 degrees

DEC center: 54.351 degrees

Pixel scale: 1.004 arcsec/pixel

Orientation: 269.782 degrees

Field radius: 0.407 degrees

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility


The Pinwheel Galaxy (Messier 101 or NGC 5457) is a spiral galaxy distanced 21 million light-years away from Earth

M101 is a large galaxy, with a diameter of 170,000 light-years. By comparison, the Milky Way has a diameter of 258,000 light years. It has around a trillion stars, twice the number in the Milky Way.
It has a disk mass on the order of 100 billion solar masses, along with a small central bulge of about 3 billion solar masses.

(desc. credits: Wikipedia)



Jose Carballada
License: Attribution-NonCommercial-ShareAlike Creative Commons


  • Pinwheel Galaxy (M101) in HaLRGB, 


            Jose Carballada
  • Final
    Pinwheel Galaxy (M101) in HaLRGB, 


            Jose Carballada


better star process

Sky plot

Sky plot


Pinwheel Galaxy (M101) in HaLRGB, 


            Jose Carballada