Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Nebula in Orion  ·  M 42  ·  M 43  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  The star 42Ori  ·  The star 45Ori  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri
M42 as seen with an AC refractor, ErklueAstro
M42 as seen with an AC refractor
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M42 as seen with an AC refractor

M42 as seen with an AC refractor, ErklueAstro
M42 as seen with an AC refractor
Powered byPixInsight

M42 as seen with an AC refractor

Equipment

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Acquisition details

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Description

While travelling in Mexico I took advantage of taking images on high altitudes, since this is not so easy to achieve in Germany. During my stays in Taxco and Tequisquiapan (around 1900 m altitude both) I chose to take images of M42 with my litte Skywatcher AC 80/400 Startraveler. Since the telescope is mounted on a EQ1 "mount" (table tripod and RA stepmotor) it is quite fragile which lead to the decision to choose short exposure for the light frames. I think, this picture is a nice demonstration of what you can achieve with affordable (cheap but not crappy!) optics! Of course CA cannot be cancelled and is quite visible. However this shot shows that it was reasonable to take DS pictures with this little travel scope while being on holidays ;-).

Comments

Revisions

  • M42 as seen with an AC refractor, ErklueAstro
    Original
  • M42 as seen with an AC refractor, ErklueAstro
    B
  • M42 as seen with an AC refractor, ErklueAstro
    D
  • M42 as seen with an AC refractor, ErklueAstro
    E
  • M42 as seen with an AC refractor, ErklueAstro
    F
  • Final
    M42 as seen with an AC refractor, ErklueAstro
    G

B

Description: Applied less de-noising with Multiscale Linear Transform, slightly sharpened with unsharp mask, applied a litle bit Local Histogramm Equalization to enhance contrast of nebulosity details and finally slightly desaturated colors.

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D

Description: Star sizes reduced, background desaturated and slightly lowered its magnitude. Applied a little bit of extra sharpening followed by slight de-noise.

Uploaded: ...

E

Description: Added pictures taken in Tequisquiapan, Mexico (33 subs corresponding to 16 minutes ).

Uploaded: ...

F

Description: Applied Local Histogram Equalization and slight sharpening.

Uploaded: ...

G

Description: New process run. Note the trapezium stars which are now (nearly) resolved ;-) ...

Uploaded: ...

Sky plot

Sky plot

Histogram

M42 as seen with an AC refractor, ErklueAstro