Sunspot data for 3 June 2023 of period 2023Q2: (PREV DAY - NEXT DAY)

Sun230603_0854UTC_sketch.jpgSun230603_0900UTC.jpg





Click here for the sharpened image.
Today we had clear skies. Transparency was excellent, but the scintillation monitor reported very poor seeing on average. I made the following observation: 
Observation date/time:   03 June 2023 08:54 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 (352mm distance, 80mm diameter)
Reference:               Earth's rotation axis
Exposure (transparency): 0.450ms (using 82nm bandwidth green filter)
Seeing (SSSMon):         6.5"-7.0" (4.5" at best)

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Total number of sunspots:   26

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