火星 月惑星研究会 関西支部
Mars Image 2005/05/24(UT)
Robert Heffner
R.Heffner
解説(安達)
Heffner氏の画像では、ヘラス(Hellas:290W,-50)がぼんやりしている。しか
し、今回はヘラスが黄色く写っている。単なる大気差だけではなく、淡いダス
トを反映しての色だと思われる。北極は白っぽく写っているが、昨日のPujic
氏の画像と対照して、大気差によるいたずらの可能性がある。アエテリ
ア(Aetheria;240W,+40)の暗斑がかろうじて確認できる。
(reported by 1 observer)
In the image of Heffner, Hellas is dimly seen. However, Hellas is
yellow this time and it is reflected. It seems that it is a color
of not only a mere atmospheric difference but also light dust. The
North Pole is reflected as white. There is a possibility of the
mischief by an atmospheric difference contrasting it with the image
of yesterday's Pujic. Dark pattern of Aetheria can be barely
confirmed. (repoted by 1 observer)
FROM Makoto ADACHI
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Robert Heffner (280mm SCT : ToUcam Pro 840)
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2005/05/24 21:10 UT
CM:241 LS:217 Dia:7.6"
Celestron C11, 28cm SCT + 3x barlow
ToUcam Pro 840, Baader IR/UV cut filter
Seeing: 2-3/10 (very turbluent)
Transparency: 5/6; Image taken in daylight and the background was darkened in PS.
Comments: the Hellas Basin was very bright and reflective visually in the telescope.
[Robert Heffner:Aichi, Japan]