Hemisphere:  Northern  ·  Constellation: Triangulum (Tri)  ·  Contains:  IC131  ·  IC132  ·  IC133  ·  IC135  ·  IC136  ·  IC137  ·  IC142  ·  IC143  ·  M 33  ·  M33  ·  NGC 598  ·  NGC 604  ·  NGC588  ·  NGC592  ·  NGC595  ·  NGC604  ·  Triangulum Galaxy  ·  Triangulum Pinwheel  ·  Triangulum galaxy
Getting plate-solving status, please wait...
Triangulum Galaxy, 



    
        

            Nico Augustin
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Triangulum Galaxy

Getting plate-solving status, please wait...
Triangulum Galaxy, 



    
        

            Nico Augustin
Powered byPixInsight

Triangulum Galaxy

Imaging telescopes or lenses: Skywatcher Evostar 72ed

Imaging cameras: ZWO ASI294MC Pro

Mounts: iOptron CEM25P

Guiding telescopes or lenses: Orion Mini Guide Scope 50 mm

Guiding cameras: ZWO ASI174MM Mini

Software: Topaz Labs DeNoise AI  ·  Adobe Photoshop 2020  ·  Astro Pixel Processor

Filters: IDAS NGS1  ·  Optolong L-eNhance

Accessory: OVL Field Flattener  ·  Ikarus Technologies StellarMate OS  ·  Baader Planetarium UFC Filter System  ·  Raspberry Pi 4


Dates:Nov. 8, 2020Jan. 30, 2021

Frames:
Optolong L-eNhance: 21x300" (gain: 120.00) -10C bin 1x1
IDAS NGS1: 25x600" (gain: 120.00) -5C bin 1x1

Integration: 5.9 hours

Darks: ~32

Flats: ~35

Flat darks: ~42

Avg. Moon age: 19.30 days

Avg. Moon phase: 73.61%

Bortle Dark-Sky Scale: 5.50

Temperature: -0.75


Astrometry.net job: 4265356

RA center: 1h 33' 49"

DEC center: +30° 41' 5"

Pixel scale: 2.306 arcsec/pixel

Orientation: 86.282 degrees

Field radius: 1.443 degrees


Resolution: 3750x2500

Locations: Kieler Ostufer, Kiel, Schleswig-Holstein, Germany; Penzlin Meckl., Penzlin, Mecklenburg-Vorpommern, Germany

Data source: Traveller

Description

M33 under Bortle 4 skies and "First light" for my new ZWO EAF autofocuser. Even though it is the second largest galaxy in the northern skies, was the Triangulum Galaxy never really on my bucket list of prime targets. But now I´ m glad that I tried it last night.
I was always a bit hesitant despite the comparably low surface brightness and (imo) the difficult-to-see spiral structure. However, I have the feeling it did came out not too bad. Even NGC604, one of the largest known H-II regions is well visible. Originally I planned with about 2 hrs more data but faced some software issues in the beginning. So, I lost a bit time and around two in the morning the moon started to kick in. Guiding could have been a bit better too but hey, happy after a looong time of bad weather and my ZWO EAF is working super fine with EKOS too 😃

Comments

Revisions

  • Triangulum Galaxy, 



    
        

            Nico Augustin
    Original
  • Triangulum Galaxy, 



    
        

            Nico Augustin
    B
  • Triangulum Galaxy, 



    
        

            Nico Augustin
    C
  • Final
    Triangulum Galaxy, 



    
        

            Nico Augustin
    D

B

Description: I added 1:45 hrs of l-eNhance data (extracted Ha) and refined a bit the overall appearance of the image. Overall exposure time is now almost 6 hours.

Uploaded: ...

C

Description: Slighty tuned the curves to darken the background a bit more as I saw that on mobile screens it was too bright

Uploaded: ...

D

Description: Once more reprocessed to combine the available data better. The last version was a bit too blurred and I think this nes stack from PixInsight is doing better.

Uploaded: ...

Sky plot

Sky plot

Histogram

Triangulum Galaxy, 



    
        

            Nico Augustin