金星 ALPO-Japan Latest

Venus Image 2010/05/05(UT)

Emil Kraaikamp
E.Kraaikamp

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2010/05/05 19:00 UTC
254mm F/4.5 Newtonian
DMK21AU04 with ICX618ALA modification
Astronomik Ir-pass > 807nm, and Wratten 47+BG39 filters
Powermate 5x

Comments:
Ir was used for luminance in this image. W47+BG39 for blue (UV), infrared
for Red, and green was a 50/50 mixture of the two. Seeing conditions were
poor, there was hardly any detail in the UV channel (1/30s 650gain). But
infrared (1/500s, 679 gain) showed some really nice detail. About 10.000
frames were stacked in the infrared, and about 7.000 in UV.  Stacked using
AutoStakkert! and processed in Photoshop.

[Emil Kraaikamp:Neighbourhood of Ruinerwold]

ALPO-Japan Latest Venus Section	2010/05/06
	2010/05/04