Syrtis Mj is near the CM and looks fat. Hellas whitish bright.
Seeing: 3-4 /10.
The apparent diameter δ is 4.8".
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
15 IR images each exposed with 0.1 secs
10 R + IR Rejection images each with 0.5 secs
10 G + IR Rejection images each with 0.5 secs
10 B + IR Rejection images each with 1.5~2 secs
Filters are the Koh-eisha RGB filter Type 3.
Observing site is located at Hatsuka-ichi, Hiroshima, Japan.