Sunday, April 15, 2007

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:-


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.

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