Here is an approximation of the speed of the April 16 solar flare and the size after 25 minutes: The attached image the April 16 M-class solar flare has been inserted into a full-disk (inverted) image of the sun taken on the 13th. 109 earths fit across the sun's angular diameter. It appears that in 25 minutes the flare extended out a distance of 40 earths from the sun's limb. 317160 miles was covered in 25 minutes. Speed? 761,184 miles per hour. (Please challenge any assumption made in this calculation. I would be very pleased to have a more accurate estimate.
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April 16 M-class flare: how far and how fast?
- Merlin66
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Re: April 16 M-class flare: how far and how fast?
Whoooo
Can't fault your arithmetic.
Depending on the direction of travel (it may in fact have been travelling away from us on the other side of the disk) it could have been going even faster!!
(Anyone have a dopplergram of the explosion???)
Can't fault your arithmetic.
Depending on the direction of travel (it may in fact have been travelling away from us on the other side of the disk) it could have been going even faster!!
(Anyone have a dopplergram of the explosion???)
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"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
- marktownley
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Re: April 16 M-class flare: how far and how fast?
Like the maths!
http://brierleyhillsolar.blogspot.co.uk/
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Re: April 16 M-class flare: how far and how fast?
Amazing picture and astounding speed! I just can't properly imagine how huge and vast the Sun really is, but this helps.
Alexandra
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Re: April 16 M-class flare: how far and how fast?
Wonderful job, i had not seen something like this before.
Re: April 16 M-class flare: how far and how fast?
Thank you, Florencior.
Even though this was a huge event, it appeared somewhat faint when looking through high cirrus clouds. And so, I had just a small picture that did not really reflect the significance of the event. My thought was that it might be more interesting with some perspective. That included a whole disk image and a rough calculation of how far and how fast the plasma was moving.
Even though this was a huge event, it appeared somewhat faint when looking through high cirrus clouds. And so, I had just a small picture that did not really reflect the significance of the event. My thought was that it might be more interesting with some perspective. That included a whole disk image and a rough calculation of how far and how fast the plasma was moving.