2003 05 21 (Km) Note
Martian Images taken on 21 May 2003
at 19:21 GMT by Teruaki KUMAMORI.

  λ=189゚Ls,   (ω=094°W,   φ=19°S),   δ=11.4",   ι=43°
  Seeing: 5/10. Transparency: 1/5

Use is made of a homemade 20 cm Dall-Kirkahm at f/28 equipped with a Philips ToUcam Pro.
A 0.5° wedge prism was employed to compensate the dispersion. Also an IR blocker is used.
Each image was made by stacking 4000 frames each taken with a 1/25 sec exposure. since the shooting was made under a hazy sky .

Technical Note:
  Since the original B channel of the ToUcam colour image admits an intrusion of longer waves (>500mn) of G, we here provide, in addition to B, another processed image B - 0.3G, that is made by subtracting 30% of G from the original ToUcam B ingredient.

Observing Note:
  The mornig side of the spc is brighter. The Xanthe evening white cloud goes up to Ophir-Candor. An atmospheric difusion is visible at an area of Syria Planum following Solis L.

Location: Sakai City, Osaka, Japan

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