Sunspot data for 22 July 2021 of period 2021Q3: (PREV DAY - NEXT DAY)
| Sun210722_1150UTC_sketch.jpg | Sun210722_1156UTC.jpg |
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Today we had about 5% cumuli. Seeing was reasonable by the time I observed (the chicken shack needed urgent repair this morning, which involved painting and must be dry by the time his royal highness takes his harem back inside this evening). Anyway, transparency was very good and I made the following observation :
Observation date/time: 22 July 2021 @ 11:50 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 (353mm distance, 80mm diameter) Reference: Earth's rotation axis =================================================================== Total number of sunspots: 8 | |
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