Sunspot data for 26 August 2021 of period 2021Q3: (PREV DAY - NEXT DAY)
| Sun210826_1540UTC_sketch.jpg | Sun210826_1547UTC.jpg |
|---|---|
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Today started out grey with drizzle, but at the end of the afternoon it cleared and we had some 50% cumuli. Transparency was reasonable, but seeing mediocre. I made the following observation:
Observation date/time: 26 August 2021 @ 15:40 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 (351mm distance, 80mm diameter) Reference: Earth's rotation axis =================================================================== Total number of sunspots: 11 | |
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