Sunspot data for 2 May 2025 of period 2025Q2: (PREV DAY - NEXT DAY)
| Sun250502_1456UTC_sketch.jpg | Sun250502_1504UTC.jpg |
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 |  Click here for the sharpened image. |
Today started out grey, but in the afternoon we had clear skies. Transparency was very good, but the scintillation monitor reported poor seeing on average. I made the following observation:
Observation date/time: 02 May 2025 14:56 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 (345mm distance, 80mm diameter) Reference: Earth's rotation axis Exposure (transparency): 0.480ms (using 82nm bandwidth green filter) Seeing (SSSMon): 6.0-7.5" (4.0" at best) =================================================================== Total number of sunspots: 10 | |
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