Sunspot data for 3 July 2024 of period 2024Q3: (PREV DAY - NEXT DAY)
| Sun240703_1221UTC_sketch.jpg | Sun240703_1226UTC.jpg |
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 |  Click here for the sharpened image. |
Today started out grey, but in the afternoon it cleared to about 50% cumuli, topped with 70% alto cumuli (sometime packed to stratus). Transparency in between was excellent, but the scintillation monitor reported mediocre seeing on average. I made the following observation:
Observation date/time: 03 July 2024 12:21 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): 0.380ms (using 82nm bandwidth green filter) Seeing (SSSMon): 4.0-4.5" (2.5" at best) =================================================================== Total number of sunspots: 38 | |
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