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Contains:  32 alf Leo, IC591, Regulus, The star Regulus (αLeo)
Getting plate-solving status, please wait...
LEO 1, 


            Riedl Rudolf
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Technical card

Dates:March 16, 2020

Frames: 17x182" ISO1600

Integration: 0.9 hours

Darks: ~25

Flats: ~25

Bias: ~25

Avg. Moon age: 22.23 days

Avg. Moon phase: 49.12%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 21.50

Temperature: -5.00 job: 3335160

RA center: 10h 8' 29"

DEC center: +12° 10' 24"

Pixel scale: 3.167 arcsec/pixel

Orientation: 1.647 degrees

Field radius: 0.938 degrees

Resolution: 1298x1693

Locations: Home, St. Peter/O., Steiermark, Austria

Data source: Backyard


I tried to take a picture with the C11 which did not work due to reflections in the corrector lens as well not in the SW 120ED (did not resolve the LEo 1). Now with the Sharpstar Astrograph the next trial which was surprsingly easy in spite of the small integration time. The picture is slightly cropped!



Riedl Rudolf
License: None (All rights reserved)


  • LEO 1, 


            Riedl Rudolf
  • LEO 1, 


            Riedl Rudolf
  • Final
    LEO 1, 


            Riedl Rudolf


Description: Leo1 picture taken with the C11. Regulus is shining heavily into the field of view. D5100 at1600 ASA and 136min at f2100mm. I made a pciture with the SW120ED Refraktor as well, but this did not resolve Leo1 into stars.


Description: New processing with better details. Its interesting to compare the new picture with the C11 pciture.

Sky plot

Sky plot


LEO 1, 


            Riedl Rudolf

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