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Mars Image 2018/12/13(UT)
柚木健吉,永長英夫
Pericles Enache,Paul Maxson,Paul G. Abel
K.Yunoki,H.Einaga,P.Enache,P.Maxson,P.Abel
解説（安達）/ Comment by Makoto Adachi
永長氏の画像を見ると、Syrtis Majorの先端は、ＩＲでははっきりしているが、Ｇ画像では淡くなり、ダストベールに覆われていることが
よくわかる。ＳＰＣの明るさが低いため、ＳＰＣの周囲の様子が良く記録されている。それによればＳＰＣの周囲には霧が広がり、明るい
白雲状の明部は見られない。画像処理によって、この周囲に白雲状の模様が良く記録されているが、これは実在のものではないことが
よくわかる。
Looking at the image of Mr. Einaga, the tip of Syrtis Major is clear in IR, but it is faint in G image and it is clear that it is covered
with dust veil. Since the brightness of the SPC is low, the state around the SPC is well recorded. According to it, the mist spreads around
the SPC, and no bright part with a bright white cloud is visible. By image processing, a white cloud pattern is well recorded around this,
but it is clear that this is not an actual one.
（by 5 observations ;reported by Makoto Adachi)
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IR撮像後、一気にアイーイングが悪化。
雲も出てきておまけに小粒の雨まで降り始めたので撤収。
TeleVueの４倍パワーメイトに替えてみる。
しかし、この前までのAstroPysicsバローは取り付け面からの距離を延ばしていたため、
結果的に拡大率はあまり変わらなかった。
[Kenkichi Yunoki (Sakai City,Japan)]
≪大阪府 堺市 柚木健吉≫
[Hideo Einaga Kasai-City Hyogo-Prefecture Japan]
≪兵庫県 加西 永長英夫≫
Sky seeing conditions improved after a heavy thunderstorm in the afternoon and that helped to clean the atmosphere.
Temperature was 23,5 Celsius without wind at the time of the observation session.
[Pericles Enache,Sao Paulo,Brazil]
[ Paul Maxson:Surprise,Arizona,United States]
I was quite surprised how good the seeing conditions were- with powers of x250 and x312 quite a bit of detail was visible on the disk even though the apparent disk size is now 8.4".
Main points of interest include:
- Bright SPC.
- The preceding limb was quite bright, and there seemed to be bright clouds close to the preceding limb to the south of Solis Lacus.
- Solis Lacus the main feature on show. The Mire Sirenum was also visible along with Mare Australe.
- Drawing 2 shows a vague streak to the north.
- Although seeing was good, alas I could not see any sound of the possible limb cloud extension over the SPC.
[Paul G. Abel:Leicester:United Kingdom]
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