Sunspot data for 23 July 2022 of period 2022Q3: (PREV DAY - NEXT DAY)

Sun220723_0755UTC_sketch.jpgSun220723_0804UTC.jpg





Click here for the sharpened image.
Today we had about 20% cumuli, topped with 50% light stratus. Transparency in between was reasonable, but the scintillation monitor reported varying seeing. I made the following observation: 
Observation date/time:   23 July 07:55 UTC
Telescope:               GTT60 (Galileo Type Telescope)
Focal length:            1490mm (plano convex singlet)
Aperture:                60mm
Stop:                    30mm
Eyepiece:                -75mm (plano concave singlet, 24mm aperture)
Observation type:        projection (349mm distance, 80mm diameter)
Reference:               Earth's rotation axis
Exposure (transparency): 0.210ms
Seeing (SSSMon):         2.5-5.5"

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Total number of sunspots:   21

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