Sunspot data for 9 August 2026 of period 2026Q3: (PREV DAY - NEXT DAY)
| Sun260809_0739UTC_sketch.jpg | Sun260809_0743UTC.jpg |
|---|---|
 |  Click here for the sharpened image. |
today we had patches of altostratus, but with large clearances in between. Transparency was excellent, and the scintillation monitor reported very good seeing on average. I made the following observation:
Observation date/time: 09 August 2026 07:39 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): 0.380ms (using 82nm bandwidth green filter) Seeing (SSSMon): 1.4-1.9" (0.6" at best) =================================================================== Total number of sunspots: 2 | |
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