Sunspot data for 16 April 2022 of period 2022Q2: (PREV DAY - NEXT DAY)

Sun220416_1002UTC_sketch.jpgSun220416_1008UTC.jpg


Today we had a mix of cirrus and cumuli, covering the sky for some 40%. Transparency was good, and the scintillation monitor reported reasonable to mediocre seeing. I made the following observation: 
Observation date/time:   16 April 10:02 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 (343mm distance, 80mm diameter)
Reference:               Earth's rotation axis
Exposure (transparency): 0.180ms
Seeing (SSSMon):         4.0-5.0"

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Total number of sunspots:   7

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