Sunspot data for 5 July 2023 of period 2023Q3: (PREV DAY - NEXT DAY)
| Sun230705_1448UTC_sketch.jpg | Sun230705_1450UTC.jpg |
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 |  Click here for the sharpened image. |
Today started out with a severe storm with gusts up to 146kmh and torrential rain. In the afternoon the wind eased to about 4Bft and some small clearances appeared. Transparency in them was good, and the scintillation monitor reported good seeing on average. I made the following observation:
Observation date/time: 05 July 2023 14:48 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): 0.450ms (using 82nm bandwidth green filter) Seeing (SSSMon): 1.5-2.5" (1.0" at best) =================================================================== Total number of sunspots: 22 | |
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