Sunspot data for 27 May 2021 of period 2021Q2: (PREV DAY - NEXT DAY)
| Sun210527_1340UTC_sketch.jpg | Sun210527_1342UTC.jpg |
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The whole morning fully overcast, but it cleared a bit just 20 minutes ago, leaving us with 80% cumuli. I made the following observation:
Observation date/time: 27 May 2021 @ 13:40 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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