Sunspot data for 8 January 2025 of period 2025Q1: (PREV DAY - NEXT DAY)
| Sun250108_1007UTC_sketch.jpg | Sun250108_1011UTC.jpg |
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 |  Click here for the sharpened image. |
Today we had about 50% cumuli. Transparency in between was mediocre, but the scintillation monitor reported very good seeing on average. I made the following observation:
Observation date/time: 08 January 2025 10:07 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 (342mm distance, 80mm diameter) Reference: Earth's rotation axis Exposure (transparency): 0.730ms (using 82nm bandwidth green filter) Seeing (SSSMon): 1.7-2.0" (1.0" at best) =================================================================== Total number of sunspots: 35 | |
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