Seeing: 4 /10.
Taken in a lull. Ophir is already bright. Niliakus L is quite dark in R, as dark as Meridiani S. Argyre is dull light (surface lit). RGB shows a vast extension of the water vapour. Note a bright spot at the outer area of the spc.
Use is made of an f /7.7 Newtonian extended to f /50 having a 25 cm speculum equipped with an ST-5C (at -5ﾟC).
Image data are
17 R + IR Rejection images each with 0.2 secs
9 G + IR Rejection images each with 0.4 ~ 5secs
9 B + IR Rejection images each with 2~10 secs
Filters: Koh-Ei-Sha's interference RGB filter of Type 3.
The Morita Observatory is located (132.3°E, 34.3°N) at Hatsuka-ichi, Hiroshima, Japan.