Vieta

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

	Vieta is 90 Km in diameter and 4,500 metres deep.  It is about the same age (3800 million years) as Fourier which is 54 km in diameter and 3,700 metres deep.  Cavendish is an interesting crater but does not show up well in this late-evening picture. The scale markers are approximately 100 Km north and east. The picture was taken in infra-red light with a ToUcam attached to my LX200 on 31st August 2005 at 04:35 UT when the Moon was 26.3 days old. Date and Time: 31st August 2005 04:35 UT Camera: ToUcam 740K Telescope: LX200 at prime focus (FL 2500 mm) with IR-pass filter Capture: K3CCDTools. Low gamma, 1/25", 40% gain, 458 frames Processing: Registax. 126 frames stacked. Wavelets 1-3 = 10, gamma 1.6
	This is the same general area imaged a day earlier.  It was taken only just before sunrise, so the contrast is not as good as it might have been.  But Cavendish shows up much better.  It looks as though it is elongated, but images from space craft show that it is not.  The impression is created by two small craters on its rim.  The pair of Henry and Henry Frères is a cartographer's nightmare.  The names are not related.  Henry is named after Joseph Henry (1792-1878), a pioneer of elecro- magnetism and after whom the unit of inductance is named.  Henry Frères is named after two brothers, Paul (1848-1905) and Prosper (1849-1903) Henry who were pioneers in astrophotography and who designed telescopes. The scale markers are approximately 100 Km north and east. The picture was taken with a raw-modofied Atik 1-HS camera attached to my LX200 shortly before sunrise on 17th October 2006, when the Moon was 25.0 days old. Date and Time: 17th October 2006 06:25 UT Camera: Atik 1HS Telescope: LX200 at prime focus Capture: K3CCDTools. Low gamma, 1/25", 56% gain, 604 frames Processing: Registax. 586 frames stacked. Wavelets 1-3 = 10, histogram 30-130

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