Sunspot data for 29 October 2021 of period 2021Q4: (PREV DAY - NEXT DAY)

Sun211029_1000UTC_sketch.jpgSun211029_1008UTC.jpg


Today we had clear skies again with some scattered cirrus as an indication of the weather for the coming few days. Transparency was reasonable, seeing was reported excellent by the scintillation monitor, but in reality the Sun looked like rubber due to low frequency undulation. I made the following observation:
Observation date/time:   29 October 10:00 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): 0.230ms
Seeing (SSSMon):         1.0"-1.5"

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Total number of sunspots:   13

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