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Contains:  California nebula, NGC 1499, The star 50Per, The star ξPer
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The California Nebula, 





    
        

            Chris Levitan
The California Nebula

The California Nebula

Technical card

Resolution: 695x1000

Dates:Dec. 7, 2017

Frames: 22x120"

Integration: 0.7 hours

Avg. Moon age: 19.16 days

Avg. Moon phase: 79.72%

Astrometry.net job: 1852189

RA center: 60.473 degrees

DEC center: 36.179 degrees

Pixel scale: 24.160 arcsec/pixel

Orientation: 30.706 degrees

Field radius: 4.086 degrees

Description

This wonderful DSO among quite a few others in it's area of the night sky has been elusive to me since I started imaging in my locale. I've been working with the property owner to have a very dry-rotted pine tree completely removed. It's been since May when I first requested it. I was really worried come August and the eclipse to find that it was still going to be there and most likely forgotten about by the powers that be. I asked again in late august and finally a few months ago it was removed for good. Nothing but a stump remains. Finally peace of mind from falling limbs in the winter storms and the best part.....Completely clear open views all to the East now. YES! I saw that the California Nebula would be a great candidate for a modded DSLR and also in a great spot at the perfect time before the Evil Orb was to rise so it became the objective for the evening.

I finally powered up my mount just before dusk and the last date showed 10/16/17....Seriously?...lol. Man this is going to feel good I thought. I purchased a used 70's Nikkor 180mm ED Gold band lens almost 2 years ago after reading up on this little Jewel and have never really had the chance to use it all that much till now. I saw an opportunity last night finally after all these years. I set up a tandem rig and tried to calibrate but to no avail. I think I figured it out but last night after some frustration I just went for 2 minute exposures unguided and was getting pretty descent results with my Hutech Modded T5i Canon. Just a smidge of trailing at that length so I went for it. I was able to get 22 good lights out of 25 before a very thin layer of clouds rolled in just before 10 p.m. I used those and 50 darks all at ISO 800. No flats needed at all for with this lens even on a crop sensor vignetting is zero with the lens wide open at F2.8

Here's the final results after stacking in DSS using Median and Mosaic methods. A simple basic edit in DSS and then saved as a Tiff and into Abobe camera RAW for a final tweek.

Let me know what you thing of the final results here. Hopefully lots more to come from the far East skies. Hope yours are as clear as well.

Comments

Author

leveye
Chris Levitan
License: None (All rights reserved)
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Revisions

  • The California Nebula, 





    
        

            Chris Levitan
    Original
  • The California Nebula, 





    
        

            Chris Levitan
    B
  • Final
    The California Nebula, 





    
        

            Chris Levitan
    C

Sky plot

Sky plot

Histogram

The California Nebula, 





    
        

            Chris Levitan