Sunspot data for 3 September 2023 of period 2023Q3: (PREV DAY - NEXT DAY)
| Sun230903_1307UTC_sketch.jpg | Sun230903_1314UTC.jpg |
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 |  Click here for the sharpened image. |
Today started out fully overcast with a thick haze, but around noon it started to clear. Transparency was reasonable, but the scintillation monitor reported poor seeing on average. I made the following observation:
Observation date/time: 3 September 2023 13:07 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): 0.500ms (using 82nm bandwidth green filter) Seeing (SSSMon): 5.5-6.0" (3.5" at best) =================================================================== Total number of sunspots: 16 | |
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