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October 30 2009

Sunspot NOAA 11024


We don't see much h-alfa images on this forum, so I decided to submit one of mines. This is one of the rare sunspot appearing this year. The group was reasonably big, or at least not ridicously little, so it's a nice view tougheter with the solar flares on the limbs.
These images is a composing from two different expositions: one for the disk and one for the flares. It isn't a mosaic tough, since the focal lenght of the WO 72ED is just righ to keep the whole disk onto my DMK 41 sensor.

Submitted by: Giancarlo Calzetta (Pilolli)Location: Bratto (BG) - ItalyDate: July 04 2009

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2009-10-30 06:14:34 GMT Giuseppe Petralia
Complimenti ottima immagine,
ciao, Giuseppe
 

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October 30 2009