Merlin66
08-01-2025, 11:59 AM
While testing the MLAstro SHG (125/125 configuration) I couldn't help but be impressed with the size of the filament currently visible.
I've been observing the Sun for over 25 years - With no loss of eyesight ;) and this must be the longest filament I've seen.:eyepop:
The visible surface of the Sun is about 2.2 million Km in width (half the solar circumference), based on that, I think the filament is about 3 million Km in length.!!
Certainly a time of solar maxima....
I hope you also get the chance to image this enormous filament.
(I think the "gaps" you see are due to the Doppler shift where the filament is in strong upward/ downward motion)
Ken
I've been observing the Sun for over 25 years - With no loss of eyesight ;) and this must be the longest filament I've seen.:eyepop:
The visible surface of the Sun is about 2.2 million Km in width (half the solar circumference), based on that, I think the filament is about 3 million Km in length.!!
Certainly a time of solar maxima....
I hope you also get the chance to image this enormous filament.
(I think the "gaps" you see are due to the Doppler shift where the filament is in strong upward/ downward motion)
Ken