Copernicus

Move your mouse over the picture to see the names of the various features.

Copernicus is a very young crater at less than 1,000 million years.  It is 95 Km in diameter and its walls rise to 3,760 metres.  It has three central mountains, the highest 1,200 metres high.  The northern part of the floor is significantly smoother than the southern part.  At this scale there are few other formations in the picture.  Mare Imbrium is to the north, Mare Nubium to the south.

	The picture was taken with a ToUcam attached to my ETX125 with a X2 lens attached on 30th March 2004, when the Moon was 9.1 days old.
	Date and Time	30th March 2004 20:58 UT
	Camera	ToUcam 740K
	Telescope	ETX125 with X2 lens
	Capture	K3CCDTools. 50% gamma, 1/33", 15% gain, 364 frames
	Processing	Registax. 214 frames stacked. Wavelet 1,2 = 10, wavelet 3 =5
	The picture was taken with a ToUcam attached to my LX200 with a X2 lens attached on 7th October 2004, when the Moon was 22.8 days old.  The Sun was much higher in the sky over Copernicus; it was early afternoon as can be see by the comparative lack of shadows.  The arrows in the bottom left-hand corner represent approximately 50 Km north and east.
	Date and Time	7th October 2004 03:56 UT
	Camera	ToUcam 740K
	Telescope	LX200 with X2 lens
	Capture	K3CCDTools. High gamma, 1/50", 36% gain, 392 frames
	Processing	Registax. 254 frames stacked. Wavelet 1-3 = 10
	Click here to see a mosaic of this area taken at the same time.
	This is a wider picture taken with a ToUcam attached to my ETX125 on 15th July 2005, when the Moon was 8.5 days old.  It shows Copernicus in the lower left and Eratosthenes towards the top and the very southern end of the Apennine mountains at the very top. The picture was taken 50 minutes before sunset and was made in infra-red light. The Sun was only just rising over Copernicus whose floor is still in darkness, but Eratosthenes is almost 9° east of Copernicus, so the Sun was 9° higher in the sky, and it is somewhat less deep than Copernicus and so its floor is almost fully illuminated.
	Date and Time	15th July 2005 19:26 UT
	Camera	ToUcam 740K
	Telescope	ETX125
	Capture	K3CCDTools. 0% gamma, 1/25", 23% gain, 398 frames
	Processing	Registax. 178 frames stacked. Wavelet 1-3 = 10, contrast 240, brightness -50

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