Sunspot data for 24 October 2025 of period 2025Q4: (PREV DAY - NEXT DAY)
| Sun251024_0955UTC_sketch.jpg | Sun251024_0958UTC.jpg |
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 |  Click here for the sharpened image. |
today, still quite windy after storm Benjamin, we had about 20% cumuli, topped with 100% cirrus. Transparency was mediocre, but the scintillation monitor reported good seeing on average. I made the following observation:
Observation date/time: 24 October 2025 09:55 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): 0.580ms (using 82nm bandwidth green filter) Seeing (SSSMon): 1.6-1.9" (1.0" at best) =================================================================== Total number of sunspots: 14 | |
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