Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  41 the01 Ori  ·  42 c Ori  ·  43 the02 Ori  ·  44 iot Ori  ·  45 Ori  ·  48 sig Ori  ·  50 zet Ori  ·  Alnitak  ·  B33  ·  De Mairan's nebula  ·  Flame Nebula  ·  Great Orion Nebula  ·  Hatysa  ·  Horsehead nebula  ·  IC 420  ·  IC 431  ·  IC 432  ·  IC 434  ·  IC 435  ·  LBN 944  ·  LBN 946  ·  LBN 950  ·  LBN 953  ·  LBN 954  ·  LBN 958  ·  LBN 962  ·  LBN 963  ·  LBN 965  ·  LBN 967  ·  LBN 974  ·  And 33 more.
Flame nebula NGC 2024 - horse head B 33 - running man Sh2-279 - Orion M 42, Gernot Schreider
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Flame nebula NGC 2024 - horse head B 33 - running man Sh2-279 - Orion M 42

Flame nebula NGC 2024 - horse head B 33 - running man Sh2-279 - Orion M 42, Gernot Schreider
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Flame nebula NGC 2024 - horse head B 33 - running man Sh2-279 - Orion M 42

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Description

It was well below zero on Jan 10th 2021 when I was taking the fotos. A lens heater was essential. The field of view was partically obstructed by power lines, so I had to crop the picture as I was not able to completely remove the artefacts during integration.

The fotos were taken unguided, 30 sec at ISO 400 at f 2.8 with Zeiss Sonnar 2.8/135mm lens attached to Sony Alpha 6000, so shooting with effectively 205mm fl.

Processing was done with PixInsight.

If anyone can explain why Alnitak shows these spikes, please let me know.

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