2003 04 21 DPk Note
Don PARKER's Images on 21 April 2003 at 10:16 GMT

  λ=172°Ls,   (ω=250°W,   φ=15°S),   δ=8.7",   ι (phase angle)=43°

Seeing good (6-7, Pickering). Transparency 3.5-4m with frequent clouds, haze.
Wind NNE 0-3 kts. Light dew. Altitude = 37-40°.

SP Hood bright. Thin AM limb arc. Hellas dull with Zea Lacus visible.
Hyblaeus Extension broad, very dark. N. Alcyonius dark; Thoana P. faint.
Cerberus III and Euripus II visible. Osiridis Pr.-Moeris L. prominent.

PARKER uses a 41 cm Newtonian working at f/55 with an eyepiece projection together with an SBIG ST9XE ccd camera, equipped with a CFW-8C filter wheel and RGB interference filters as well as a luminance Red RG610 Schott filter.

Integration times:
  RG610 (610 -1100nm): 0.12s 22 images
  Red      (612 - 670nm) : 0.29s    1 image
  Green   (488 - 574nm) : 0.48s    5 images
  Blue      (392 - 508nm) : 2.00s   1 image
Images bias, flat and dark corrected.

Observer: Donald C PARKER, Coral Gables,  FL.  USA

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