Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Nebula in Orion  ·  M 42  ·  M 43  ·  NGC 1976  ·  NGC 1982  ·  The star θ1Ori  ·  The star θ2Ori
M42, 



    
        

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M42
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M42

Technical card

Software: Fits Liberator  ·  Photoshop CS6  ·  Stark Labs Nebulosity 3


Dates:Feb. 4, 2014

Frames:
8x180" (24')
18x300" (1h 30')

Integration: 1h 54'

Avg. Moon age: 5.10 days

Avg. Moon phase: 26.65%


Basic astrometry details

Astrometry.net job: 177300

RA center: 5h 35' 18"

DEC center: -5° 23' 9"

Pixel scale: 1.008 arcsec/pixel

Orientation: 90.280 degrees

Field radius: 0.585 degrees


Resolution: 620x819

Description

Yes, yes - seems like more of the same. But! This is actually a combination of two previous sets of exposures (8x180 seconds + 18x300 seconds) for a new total exposure of 114 minutes. Again, all 26 exposures were aligned and stacked in Nebulosity 3 and post processed in Photoshop CS6. This time I tried to focus on bringing out the more diffuse gases surrounding the left and bottom portions.

Here's the data used from both previous images:

M42 + NGC1973/5/7

M42

+ 12x 300 second subs

New total = 114 minutes.

Telescope info: http://www.itelescope.net/telescope-t3/

CCD: SBIG ST-8300C One Shot Color CCD

OTA: Takahashi TOA-150

Optical Design: Apochromatic Refractor

Aperture: 150mm

Focal Length: 1095mm

F/Ratio: f7.3

Mount: Paramount GTS

Comments

Revisions

  • Final
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    Original
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    B
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    C
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    D
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    E

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