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ALERT! Real time solar forecasting system used by NASA had predicted 41% chance of an X-flare of 1635 that just became visible, just downgraded.
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[quote:Anonymous Coward 22952786:MV8yMDg2MTc2XzM1MTI5MTc1XzNGMEUxRUNC] Have you looked at my source or can you post a source that updates more often than mine (15 min)? (I assume you are using SWPC's or NOAA's predictions). [/quote]
Original Message
[
link to spaceweather.inf.brad.ac.uk
]
Visual characteristics
D - A bipolar sunspot group with penumbra on both ends of
the group. Longitudinal extent does not exceeds 10 deg.
k - large, assymetric. Same structure as type 'a', but north-south diameter of penumbra is more than 2.5 degrees. Area, therefore, must be larger or equal than 250 millionths solar hemisphere.
o - open. Few, if any, spots between leader and follower. Interior spots of very small size. Class E and F groups of 'open' category are equivalent to Zurich class G.
Updates every 15 min if active.
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