Mars on September 12, 2020

All Images Copyright Steve Cannistra

Image scale:  0.21 arcsec/pixel
North at top, South pole at around 7 o'clock
Planetary disk diameter 21 arcseconds (will be 22 arcseconds at opposition on October 13, 2020)

Photographic Details:
Dates:  September 12, 4AM EDT (UT 08:00)
Scope:  Celestron 9.25" (235mm), native focal length 2350mm, f10
Camera:  ZWO ASI178MM monochrome video camera, pixel size 2.4 um, with Starlight Xpress USB powered 5 position filter wheel for 2" filters
2" mounted Baader LRGB filters
Seeing conditions:  Moderate
Location:  Needham, MA
Post-processing: Video capture in FireCapture, video stacking in AutoStakkert!, further stacking in Winjupos, wavelet processing in Registax, final processing in Photoshop (LRGB combine) using a combination of Astraimage, and unsharp masking
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