Around Arctic Area

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Date & Time:	Sep 21 2000, 27:08 JST(+0900), 1/4sec. Exp.
Optical:	VIXEN 20cm(7.9") VISAC, afocal method with LV12mm eyepiece
	Synthesized focal length f=2865mm (equivalent f=15356mm in 35mm film format)
	Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera:	OLYMPUS C-2020Z
Location:	Kokubunji city, Tokyo

Camera Settings:	Mode.....SHQ (1600 x 1200, high-quality JPEG format)
	Lens.....f=19.1mm (equivalent f=105mm in 35mm film format), Stop: F2.8
	CCD sensitivity.....ISO100, White Balance.....Auto

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Roughly speaking, lunar surface is covered uncountable craters in southern region, while the northern region has several large basins with their insides filled by dark basaltic lava, and isolated craters are distributed on them.
The Plato is a typical isolated crater with a diameter of 101km. The interior has same color with lunar sea on the outskirts. This feature tells us that the crater has been filled with lava. This is one of characteristics of very aged craters. The Frigoris, MARE (Sea of Frigidity) is lying just north of Plato, and a mountainous region has spread in higher latitude.

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Gazetteer

	INDEX	NAME	Crater's Diameter
	1	Plato	101km
	2	Goldschmidt	120km
	3	Epigenes	55km
	4	Birmingham	92km
	5	Philolaus	71km
	6	Fontenelle	38km
	7	Carpenter	60km
	8	J.Herschel	156km
	9	Moupertuis	46km
	A	Frigoris, MARE	-
	B	Imbrium, MARE	-
	C	Recti, MONTES	-
	D	Teneriffe, MONTES	-

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Around Bailly

Plato & Alpes, VALLIS

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		Copyright(c) 2001 by Naoyuki Kurita, All rights reserved.
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