2003 05 24 Ak Note
Martian Images taken on 24 May 2003 at 18:07~19:01 GMT by Tomio AKUTSU

  λ=191゚Ls,   (ω=045°, 055°W,   φ=20°S),   δ=11.6",   ι=43°
  Seeing: 4-5/10. Transparency: 2/5

  The depression of the spc's top is evident and the evening side looks slightly less bright. Chryse is (slightly whitish) light as well as Ophir-Candor, while the following area of Solis L is not light. Nilokeras and Lunae L are as usual.

By the use of a 32 cm Newtonian @ f25 (extended by Or 25mm eyepiece) equipped with Bitran's cooled ccd camera BJ-41L (Sony ICX 285AL).

Image data are
  Top row (ω=045°W)
    25 IR (820nm) images each exposed with 0.5 secs
    10 R images each with 0.2 secs
    10 G images each with 0.3 secs
    15 B images each with 1.0 secs
    25 L images each with 0.08 secs

  Bottom row (ω=055°W)
    25 IR (820nm) images each exposed with 0.8 secs
    16 R images each with 0.3 secs
    14 G images each with 0.4 secs
    16 B images each with 1.5 secs
    21 L images each with 0.1 secs
Filters used: IDAS interference RGB filters of Type 2.

The Akutsu Observatory is located at Karasuyama, Tochigi, Japan.

See Images on the Right-Hand Side   /   Back to the Index