From: Alan Friedman <alan@greatarrow.com>

Date: March 8, 2010 10:09:44 AM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] today's sun - 3-6-2010


Hi Alberto,


Do you think that it could be interesting to align approx half an hour of grabbings or that filament moved very slowly?

Lately i saw nice protuberances but they were very lazy while some weeks ago i took some little protuberance that evolved explosively within 5 minutes.



A moving image over time of a solar feature is always interesting to me. The movies are, of course, more dramatic if the region is very active. A quick look at the first and last streams should help you decide if the effort required to make a moving image is worth it. The closer you zoom in tthe more noticeable the changes. From what I've seen in the forums, this filament seemed to have been quite stable in structure over the last couple of days.


best wishes,

Alan