Seeing: 6/10. Transparency: 4/5
The western part of M Erythraeum looks fainter than usual, perhaps because of a fallout of the last dust matters. Looks similar to Argyre. The area around Eos looks also dusty. Because of the B image, a localised white cloud at the north of M Acidalium is clearly shot.
By the use of a 32 cm Newtonian @ f32 (extended by XP24mm eyepiece) equipped with Bitran's cooled ccd camera BJ-41L (Sony ICX 285AL).
Image data are
Top row (ω=011°W)
21 IR (820nm) images each exposed with 0.5 secs
16 R images each with 0.08 secs
7 G images each with 0.12 secs
21 B images each with 0.3 secs
25 L images each with 0.08 secs
Bottom row (ω=021°W)
22 IR (820nm) images each exposed with 0.5 secs
32 R images each with 0.12 secs
22 G images each with 0.4 secs
22 B images each with 1.5 secs
11 L images each with 0.03 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.