[mdmathis6]

At that speed it is near .1 the speed of light....it would take about 90 minutes to get here from the sun...light takes 8 minutes to get here from the sun...so the flare should have arrived some 8o minutes after observation...what am I not under standing...they did say km/sec right?

[derlauerer]

At that speed it is near .1 the speed of light....it would take about 90 minutes to get here from the sun...light takes 8 minutes to get here from the sun...so the flare should have arrived some 8o minutes after observation...what am I not under standing...they did say km/sec right?

They did, but you dropped a decimal point somewhere. A speed of 3000 kps (= 3 X 10 ⁶ meters per second) would amount to 1% of the speed of light (3 X 10 ⁸ meters per second.

At a speed of 2400 kps (about 0.008 lightspeed), the matter portion of the flare should arrive about 1000 minutes after the X-rays.