Sunspot data for 23 August 2024 of period 2024Q3: (PREV DAY - NEXT DAY)
| Sun240823_1630UTC_sketch.jpg | Sun240823_1638UTC.jpg |
|---|---|
 |  Click here for the sharpened image. |
Today started out fully overcast, but in the afternoon it cleared to 100% cirrostratus and some altocumuli. Transparency was poor, but the scintillation monitor reported good seeing on average. I made the following observation:
Observation date/time: 23 August 2024 16:30 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 (349mm distance, 80mm diameter) Reference: Earth's rotation axis Exposure (transparency): 0.910ms (using 82nm bandwidth green filter) Seeing (SSSMon): 2.0-3.0" (1.5" at best) =================================================================== Total number of sunspots: 63 | |
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