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Contains:  NGC 5907, NGC 5906
Getting plate-solving status, please wait...
NGC 5907 with Tidal Stream, 


NGC 5907 with Tidal Stream

NGC 5907 with Tidal Stream

Technical card

Resolution: 3338x2954

Dates:July 7, 2018July 8, 2018July 12, 2018July 13, 2018

Astrodon 50 mm G: 6x900" -20C bin 1x1
Astrodon 50mm B: 9x900" -20C bin 1x1
Astrodon 50mm L: 33x900" -20C bin 1x1
Astrodon 50mm R: 8x900" -20C bin 1x1

Integration: 14.0 hours

Darks: ~20

Flats: ~80

Flat darks: ~80

Bias: ~20

Avg. Moon age: 19.22 days

Avg. Moon phase: 16.55%

Mean SQM: 21.50 job: 2149296

RA center: 229.010 degrees

DEC center: 56.300 degrees

Pixel scale: 0.468 arcsec/pixel

Orientation: 269.244 degrees

Field radius: 0.290 degrees

Locations: KG Observatory, Julian, CA, United States

Data source: Backyard


I started this project with the goal to capture the very faint tidal streams that R. Jay Gabany captured at a very dark site in New Mexico 12 years ago (June through August 2006).

After a week, I concluded that my 21.5 average sky was no match for his 21.8+ sky at the time. Although our equipment is similar, I would need the marine layer cover over San Diego to see a 21.8+ sky. Unfortunately the marine layer was not present as I expected.

Nevertheless, I'm happy with the results. What you see here is the same stretch applied to both the galaxy and the tidal stream. With that, you can see the relative brightness difference and the extensive glow around NGC 5907 that I have not seen in similar attempts at this very elusive galaxy/tidal stream pair. I hope you enjoy it!

P.S. The glow at the bottom left is from a very bright out-of-frame star. Although I toned it down a bit, it was too difficult to completely eliminate without damaging the surrounding data. We're still studying the cause.



License: None (All rights reserved)

Sky plot

Sky plot


NGC 5907 with Tidal Stream,