The Sun – 8/20/2017 16h 0m UT

Telescope: Meade SN8 @ f/4, Orion Atlas EQ-G, Thousand Oaks solar filter
Camera: ZWO ASI071MC, Orion Imaging Skyglow Filter
Sensor Temperature: 20C, Gain: 94, Offset: 20
Exposure: 64x0.001sec, saved as FITS
White Balance: Nebulosity Automatic
Software: Nebulosity, Registax, Photoshop

The nice line of sunspots, AR2671, has rotated around to the center of the sun’s face just in time for the solar eclipse. A new group, AR2672(?), is just coming around from the far side of the sun.

Even at unity gain and with 1ms exposures the image was over-exposed. As it turned out, only the blue channel was over-exposed and the red and green were fine. This is the green channel colorized in Photoshop.


Sun (8-20-2017)-1j.jpg