Sunday, January 06, 2008

20080106 Sun

Followup observation of yesterday, transparency at 5-7/10 (scattered thin cloud moving around), seeing very poor at 1/10 to 3/10 at best. Borg 45ED II, SM40/BF10, prime focus for full disc, 3x for closeup. Borg 45ED II, APM Herschel Wedge with Baader CaK for CaK. Finally, ERF/C5/PST at prime focus for close up again, and then C5/ERF/APM Herschel Wedge for white light.

First, let's see how poor is the seeing, you can see the shadow of the secondary, taken by ERF + C5 at f/30:-

First two are taken with SM40/BF10, Borg 45ED II at prime focus:-

1515 (GMT+8):-

1516 (GMT+8):-

Next three are taken with the same setup with 3x barlows:-

1521 (GMT+8):-

1522 (GMT+8):-

1524 (GMT+8):-

1531 (GMT+8), Full disc CaK, Borg 45ED II, APM Herschel Wedge + Baader CaK:-

1540 (GMT+8), C5/PST:-

1542 (GMT+8), C5/PST:-

1544 (GMT+8), C5/PST:-

1546 (GMT+8), C5/PST:-

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