Sunspot data for 5 August 2021 of period 2021Q3: (PREV DAY - NEXT DAY)
| No sketch made. | Sun210805_1601UTC.jpg |
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This morning work interfered, this afternoon we had thin stratus. Seeing was mediocre, transparency very poor. I made the following observation:
Observation date/time: 5 August 2021 @ 15:53 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: 0 | |
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