2003 04 16 Mo Note
Martian Images taken on 16 April 2003 at 19:24~20:36 GMT by Yukio MORITA.

  λ=169゚Ls,   (ω=073°W - 089°W,   φ=14°S),   δ=8.4",   ι=42°
  Seeing: 4/10.

  Solis L is dark detected, distinguished from Agathodaemon on its east side and a dark area around Aonius S on its SW side. The latter area looks to be affected by an atmospheric mist. Chryse is also a bit misty. Nilokeras remains still inside. The Tharsis ridges appears dark as a segment, as already detected on 11 March at λ=151゚Ls.
  In B, the sph is large and dense, maybe shows some naked spc. The B image suggests a blue clearing, but it is possible the longer waves are not well blocked or a large misty matter stays on the lighter parts of spheres.

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
    15 R + IR Rejection images each with 0.2 secs
    10 G + IR Rejection images each with 0.3 secs
    20 B + IR Rejection images each with 0.5 secs
Filters: Koh-Ei-Sha's interference RGB filter of Type 3.

Observing site is located at Hatsuka-ichi, Hiroshima, Japan.

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