Mars Image on December 11, 1999 (ALPO-Japan)

1999年12月11日の火星

新川勝仁
M.Niikawa

Masahito Niikawa (280mm SC, Digital still camera Minolta DimageEx1500) 
1999/12/11(UT) 09h05m10s(UT)
Ls = 261.1, CM = 235.3, De = -18.7, Dia = 5.4" 12 frames composite

1999/12/11(UT) 09h22m30s(UT)
Ls = 261.1, CM = 239.4, De = -18.7, Dia = 5.4" 12 frames composite



Telescope : C11 (SC) D=280mm fl=2800mm
Camera :Minolta DimageEx1500 Digital Camera taking lens removed
Effective F No.: 45 (XP24mm Eyepiece Projection)
Filter: R60 filter
Obs.site : Mozuhonmachi Sakai-City Osaka Japan
Exposure : 1/30 and 1/60 sec
Analog gain:6dB
Seeing:1/10 Trans 2/6
Image Processing:
  • The Maximum Entropy Method deconvolution after composite of the original taking images. And enhanced with the unsharp masking method.
Remarks:
  • Mare Cimmerium is seen.
  • Amazonis - Elysium is very bright.
ALPO-Japan　Mars Section