Sunspot data for 8 October 2021 of period 2021Q4: (PREV DAY - NEXT DAY)

Sun211008_1127UTC_sketch.jpgSun211008_1133UTC.jpg


This morning we started out with dense fog, but that eventually cleared, albeit that the sky remained quite white in the direction of the Sun. Otherwise the skies were clear, with reasonable transparency, but poor seeing. I made the following observation:
Observation date/time:   08 October 11:27 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 (351mm distance, 80mm diameter)
Reference:               Earth's rotation axis
Exposure (transparency): 0.210ms
Seeing (SSSMon):         5.5"-7.0"

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Total number of sunspots:   5

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