λ=347ﾟLs, (ω=340°W, φ=21°S), δ=6.4", ι=39°
Seeing: 2-3/10. Transparency: 5/5
By the use of a 32 cm Newtonian @ f33 (extended by PJ-20mm eyepiece) equipped with Bitran's cooled ccd camera BJ-41L (Sony ICX 285AL).
Image data are
17 R images each with 0.2 secs
12 G images each with 0.2 secs
22 B images each with 0.7 secs (+Fuji SP-4)
35 IR(800nm) images each exposed with 0.8 secs
Filters used: IDAS interference RGB filters of Type 2.
The Akutsu Observatory is located (140.2°E, 36.6°N) at Karasuyama, Tochigi, Japan.