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June 24 2026 APP 2.0.0-beta46 has been released !

Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.

May 27 2026 APP 2.0.0-beta45 has been released !

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Update on the 2.0.0 release & the full manual

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The Witch Head Nebula | IC2118 (HaRGB)

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(@gideon96)
Neutron Star
Joined: 6 years ago
Posts: 65
Topic starter  

Witch Head Nebula in Orion (HaRGB)

A faint reflection nebula depicting a fairytale-like crone, hence its name.
The nebula, formally known as IC2118, is associated to the nearby star Rigel, in the constellation Orion.
Its distance from Earth is approx. 900 L/Y.

Shot under Bortle 3 desert skies, Israel

WitchHead HaOiiiRGB Final web

29*300 sec RGB
12*600 sec Ha extract (L-eXtreme)
ZWO 2600 MC Pro
ASIAIR Pro
iOptron CEM25P
ZWO 120 MMs Mono

Used the Ha-Oiii - Ha extract for the OSC stack with the L-eXtreme
Such a great feature.
I combined also the Oiii data in PIXI but, that was too faint for any real difference.

Link to Astrobin: https://astrob.in/blugum/B/



   
artem reacted
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(@wvreeven)
Quasar
Joined: 8 years ago
Posts: 2134
 

@gideon96 That is a stunning image! What telescope did you use?



   
Gideon Golan reacted
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(@gideon96)
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Joined: 6 years ago
Posts: 65
Topic starter  

@wvreeven
Whoops, didn't mention, the WO RedCat51.
(A lovely recent addition to my wide range optics).

Thank you!

I was lacking more data in RGB imo.
For some reason I had to throw around 6 frames or so, from the start of the RGB session.
I started with the Ha(L-eX) because the Moon was up, and no trouble there, all 12*600sec were perfect.



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Damn, love the clean signal!



   
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