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Photographer:

morel.philippe@wanadoo.fr

Email:

morel.philippe@wanadoo.fr

Location of Photo:

Elk Park, near Jackson Hole

Date/Time of photo:

2017/08/21 17h36 UT

Equipment:

Maksutov telephoto lens, focal : 500mm stopped at F:D = 6.3 on tar Adventurer equatorial mount. Camera Sony Alpha 7s

Description:

4 radial blur pics series of 2° (65 pics), 5° (80 pics), 10° (74 pics), 15° (5 pics). Exposuress : 1/250e sec (100 ISO) to 1/20e sec (3200 ISO)

Website:

www.astrosurf.com/obscf/

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