Sunspot data for 12 April 2024 of period 2024Q2: (PREV DAY - NEXT DAY)

Sun240412_0932UTC_sketch.jpgSun240412_0937UTC.jpg





Click here for the sharpened image.
Today we had thin stratus. Transparency was poor, but the scintillation monitor reported good seeing on average. I made the following observation: 
Observation date/time:   12 April 2024 09:32 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 (346mm distance, 80mm diameter)
Reference:               Earth's rotation axis
Exposure (transparency): 1.100ms (using 82nm bandwidth green filter)
Seeing (SSSMon):         2.0-2.5" (1.0" at best)

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Total number of sunspots:  23

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