Sunspot data for 6 July 2021 of period 2021Q3: (PREV DAY - NEXT DAY)
| Sun210706_1511UTC_sketch.jpg | Sun210706_1513UTC.jpg |
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Today started grey again. On top of that wind started to pick up to force 5-6Bft. Half an hour it started to clear and I managed to make my observation.
Observation date/time: 06 July 2021 @ 15:11 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: 5 | |
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