Sunspot data for 11 July 2021 of period 2021Q3: (PREV DAY - NEXT DAY)
| Sun210711_1047UTC_sketch.jpg | Sun210711_1125UTC.jpg |
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Today it was like yesterday, so mainly grey, with occasionally some light stratus that allowed a watery Sun. Seeing was reasonable, but transparency was poor. I made the following observation.
Observation date/time: 11 July 2021 @ 10:47 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: 1 | |
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