Sunspot data for 14 July 2025 of period 2025Q3: (PREV DAY - NEXT DAY)
| Sun250714_1604UTC_sketch.jpg | Sun250714_1606UTC.jpg |
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 |  Click here for the sharpened image. |
Today started out grey, but by the end of the day it cleared completely. Transparency was mediocre, but the scintillation monitor reported reasonable seeing on average (visually it was very good). I made the following observation:
Observation date/time: 14 July 2025 16:04 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 (348mm distance, 80mm diameter) Reference: Earth's rotation axis Exposure (transparency): 0.680ms (using 82nm bandwidth green filter) Seeing (SSSMon): 2.6-2.7" (1.8" at best) =================================================================== Total number of sunspots: 36 | |
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