Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  50 zet Ori  ·  Alnitak  ·  B33  ·  Horsehead nebula  ·  IC 431  ·  IC 432  ·  IC 434  ·  NGC 2023  ·  NGC 2024  ·  Sh2-277  ·  The star Alnitak (ζOri)
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Orion  ALNITAK - Reflection nebula Yes or No??, Riedl Rudolf
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Orion ALNITAK - Reflection nebula Yes or No??

Getting plate-solving status, please wait...
Orion  ALNITAK - Reflection nebula Yes or No??, Riedl Rudolf
Powered byPixInsight

Orion ALNITAK - Reflection nebula Yes or No??

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Description

This are two pictures of the region of ALNITAK in Orion. Alnitak is the left star of the belt of Orion.

When I made my last picture with the Sharpstar 76mm EDPH of Alnitak I captured a blue reflection nebula around him. The two stars right of Alnitak do show such structures as well!

I made in the springtime another picture with the Sharpstar 8" Astrograph, where I see similar structures but not the same blue color.

I do have now the following question to the Astrobin community:

Is this an artefact or is this blue nebulosity real?? I found only a very old picture from Mount Palomar scope which is black and white only with similar structures!

I did not see any such structures on most of the pictures in Astrobin which I looked for.

Most of them are done to show the neighboring nebula and not the small reflection nebula.

The original pictures can be found here

Sharpstar 76mm EDPH



Sharpstar 2032 Astrograph

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Orion  ALNITAK - Reflection nebula Yes or No??, Riedl Rudolf