June 8, 2004
(Full-resolution image)
(17 image animation 3.6
Mo)
(17 image animation
1.4 Mo)
Instrument used
Calcium K Barr filter : 393.38 nm - FWHM = 0.3 nm
d = 0.3 or 0.6 additional neutral filters
55 mm F/8 Fluorite refractor
SBIG ST10 XME - 1/400s exposure
Conditions of observation :
Time accuracy + or - 2 s
Lattitude : N 47° 01' 40"
Longitude : E 5° 10' 12"
Altitude : 180 m
Geographic maps of the observing site location : low resolution - high resolution