Sunspot data for 18 March 2022 of period 2022Q1: (PREV DAY - NEXT DAY)

Sun220318_1420UTC_sketch.jpgSun220318_1428UTC.jpg


Today we about 50% cumuli. Transparency was reasonable, seeing was reported mediocre to poor by the scintillation monitor. I made the following observation: 
Observation date/time:   18 March 14:20 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 (340mm distance, 80mm diameter)
Reference:               Earth's rotation axis
Exposure (transparency): 0.200ms
Seeing (SSSMon):         5.5-7.0"

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Total number of sunspots:   4

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