A star, observed closely
The star
is not calm.
Every second, the sun converts four million tonnes of matter into light. The surface boils, the corona streams outward, and occasionally a filament snaps. We call this weather.
X-ray fluxC1.2
Solar wind428 km/s
Photosphere5,772 K
Active regions03
46
Helios / 09
H-alpha 656.28 nm Plate scale 1.2″
Seeing good Quiet Click the sun
to disturb it
H-alpha 656.28 nm Plate scale 1.2″
Seeing good Quiet Click the sun
to disturb it
GranulationThe surface is a ledger of convection cells, each about the size of France and lasting eight minutes.
CoronaHotter than the surface by a factor of three hundred. The mechanism is still politely argued about.
Flare classC-class events are common and harmless; X-class events are not. This is a fictional instrument.