Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Getting plate-solving status, please wait...
M42-Horsehead Ha_Mosaic, 


            George Varouhakis

M42-Horsehead Ha_Mosaic

Technical card

Imaging telescopes or lenses: SkyWatcher Esprit-80ED f/5

Software: Photoshop CC  ·  PixInsight Pisinsight 1.8

Filters: Astrnomik 6nm HA

Astrnomik 6nm HA: 50x15" (gain: 0.00) -20C bin 1x1
Astrnomik 6nm HA: 250x300" (gain: 250.00) -20C bin 1x1

Integration: 21.0 hours

Bortle Dark-Sky Scale: 6.00

Basic astrometry details job: 1871107

Resolution: 11043x4609

Locations: Backyard, Sydney, NSW, Australia


This is a 6 panel mosaic of the Horse head and M42.

Processing was done in PI and PS.

Matching the frames proved more difficult than normal due to a huge variation in signal to noise between frames, but I'm happy with the final product.

Unfortunately getting colour data for this target is almost impossible from my location, but would love to add it eventually.

As always C&Cs are most welcome. Thanks for looking.



George Varouhakis
License: None (All rights reserved)


  • Final
    M42-Horsehead Ha_Mosaic, 


            George Varouhakis
  • M42-Horsehead Ha_Mosaic, 


            George Varouhakis


Description: Starless version: I'm not sure if I like this version, but I uploaded mainly because of the amount of work I put into removing the stars.


M42-Horsehead Ha_Mosaic, 


            George Varouhakis