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Contains:  IC 430, NGC 1999, M 43, NGC 1982, NGC 1977, NGC 1980, M 42, Great Nebula in Orion, NGC 1976, NGC 1975, NGC 1981, NGC 1973, The star 49Ori, The star 45Ori, The star ιOri, The star θ2Ori, The star θ1Ori, The star 42Ori, The star υOri
Getting plate-solving status, please wait...
Orion's Sword - Preliminary, 


            Jon Rista
Orion's Sword - Preliminary

Orion's Sword - Preliminary

Technical card

Resolution: 2808x1774

Dates:Nov. 17, 2014

Astronomik CLS-XL EOS Clip-Filter: 10x150" ISO400 3C bin 1x1
Astronomik CLS-XL EOS Clip-Filter: 13x300" ISO400 3C bin 1x1
Astronomik CLS-XL EOS Clip-Filter: 20x90" ISO400 3C bin 1x1

Integration: 2.0 hours

Flats: ~30

Bias: ~200

Avg. Moon age: 24.69 days

Avg. Moon phase: 24.23%

Bortle Dark-Sky Scale: 7.00

Mean FWHM: 3.80

Temperature: -5.00 job: 420705

RA center: 83.837 degrees

DEC center: -5.690 degrees

Pixel scale: 4.422 arcsec/pixel

Orientation: 89.645 degrees

Field radius: 2.040 degrees

Locations: Aurora South Backyard, Aurora, Colorado, United States


This is a very preliminary edit. A single hour of integration for the background, and about 30 minutes each for the various core images. Currently an HDRComposition of 3 sequences: 300s, 150s, 90s. Simply processed to see what detail was captured...turned out there was quite a lot.

The Astronomik CLS-XL clipin filter for the 5D III causes a lot of problems due to it's design, and as such, I believe instead of continuing to get integration time with that filter for these sequences, I am simply going to restart with a new filter (probably an IDAS LPS-D1 52mm), with 420s, 210s, 90s and 15s exposures for HDRCompsition.



Jon Rista
License: None (All rights reserved)

Sky plot

Sky plot


Orion's Sword - Preliminary, 


            Jon Rista

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