Hemisphere:  Northern  ·  Contains:  IC131  ·  IC132  ·  IC133  ·  IC135  ·  IC136  ·  IC137  ·  IC142  ·  IC143  ·  M 33  ·  M33  ·  NGC 598  ·  NGC588  ·  NGC592  ·  NGC595  ·  NGC604  ·  Triangulum galaxy
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M33 core in HαLrgb (Triangulum Galaxy), 


            Jose Carballada
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M33 core in HαLrgb (Triangulum Galaxy)

Imaging telescopes or lenses: Altair Astro RC250-TT 10" RC Truss Tube

Imaging cameras: ZWO ASI1600MM-Cool

Mounts: Mesu 200 Mk2

Guiding telescopes or lenses: Celestron OAG Deluxe

Guiding cameras: QHYCCD QHY5III174

Focal reducers: Riccardi Reducer/Flattener 0.75x

Software: Pleiades Astrophoto PixInsight  ·  Seqence Generator Pro

Filters: Astrodon R Gen.2 E-series 36mm  ·  Astrodon G Gen.2 E-series 36mm  ·  Astrodon B Gen.2 E-series 36mm  ·  Astrodon HA 36mm - 5nm  ·  Astrodon L Gen.2 E-series 36mm

Accessory: ZWO EFW  ·  MoonLite NiteCrawler WR30

Dates:Oct. 26, 2019Oct. 28, 2019Oct. 29, 2019Nov. 19, 2019Nov. 23, 2019

Astrodon B Gen.2 E-series 36mm: 53x180" (gain: 75.00) -20C bin 1x1
Astrodon G Gen.2 E-series 36mm: 61x180" (gain: 75.00) -20C bin 1x1
Astrodon HA 36mm - 5nm: 53x600" (gain: 200.00) -20C bin 1x1
Astrodon L Gen.2 E-series 36mm: 224x180" (gain: 75.00) -20C bin 1x1
Astrodon R Gen.2 E-series 36mm: 63x180" (gain: 75.00) -20C bin 1x1

Integration: 28.9 hours

Avg. Moon age: 15.47 days

Avg. Moon phase: 14.74%

Astrometry.net job: 3099755

RA center: 1h 33' 51"

DEC center: +30° 39' 37"

Pixel scale: 1.006 arcsec/pixel

Orientation: -90.800 degrees

Field radius: 0.408 degrees

Resolution: 2328x1760

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility


Only from NGC604 to NGC588.

I tried to show all this beautiful Hα regions with a maximum definition on the context of this galaxy, covering a half degree region.

I prefer to keep this object as diffuse as is but searching the max resolution that I could obtain with my equipement. It was necessary to integrate close to 29 hours of frames.

It's a very common object, I hope to show you a different perspective! :D

"The Triangulum Galaxy is a spiral galaxy 2.73 million light-years from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598. The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Milky Way and the Andromeda Galaxy. It is one of the most distant permanent objects that can be viewed with the naked eye." (credits Wikipedia)



Jose Carballada
License: Attribution-NonCommercial-ShareAlike Creative Commons


  • M33 core in HαLrgb (Triangulum Galaxy), 


            Jose Carballada
  • M33 core in HαLrgb (Triangulum Galaxy), 


            Jose Carballada
  • M33 core in HαLrgb (Triangulum Galaxy), 


            Jose Carballada
  • Final
    M33 core in HαLrgb (Triangulum Galaxy), 


            Jose Carballada


Description: crop to NGC604


Description: NGC595 crop


Description: some levels adjusted

Sky plot

Sky plot


M33 core in HαLrgb (Triangulum Galaxy), 


            Jose Carballada