20070415 Solar

The sun remains very inactive. Cloud move in and out, seeing bad as well.

CaK revealed nothing basically, Borg 45ED II, APM Herschel Wedge, Baader CaK, 1608 (HKT):-



H-alpha does not show up anything interesting too, some small filaments, plus two set of prominence, not big either.

SM40/BF10/Borg 45ED II, 2x barlows:-

1621, closeup:-


1625, closeup of a prominence:-


1626, exposure optimized for surface detail, but prominence can be digged out too, not the best:-


1627, down under the above shot, some nice surface detail can be found, too:-


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Did an experiment, it is to use the PST-BF5 to replace the BF10, however, due to the fact that I'm hand holding it, collimation problem leaves some double image, not a good test at all.