Sunspot data for 25 June 2024 of period 2024Q2: (PREV DAY - NEXT DAY)
| Sun240625_1657UTC_sketch.jpg | Sun240625_1703UTC.jpg |
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 |  Click here for the sharpened image. |
Today we had clear skies, but observation had to wait until later afternoon. Transparency was reasonable, but the scintillation monitor reported very poor seeing on average. I made the following observation:
Observation date/time: 25 June 2024 16:57 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 (350mm distance, 80mm diameter) Reference: Earth's rotation axis Exposure (transparency): 0.550ms (using 82nm bandwidth green filter) Seeing (SSSMon): 6.5-7.5" (3.0" at best) =================================================================== Total number of sunspots: 28 | |
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