Sunspot data for 22 August 2021 of period 2021Q3: (PREV DAY - NEXT DAY)
| Sun210822_0827UTC_sketch.jpg | Sun210822_0831UTC.jpg |
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Today we started fully overcast with thick stratus (or packed cumuli), but in between there were some isolated clearances with very thin stratus above it. Transparency was poor and seeing mediocre. I made the following observation:
Observation date/time: 22 August 2021 @ 08:27 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: 3 | |
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