Sunspot data for 24 October 2021 of period 2021Q4: (PREV DAY - NEXT DAY)
| Sun211024_0926UTC_sketch.jpg | Sun211024_0932UTC.jpg |
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Since a long time we had absolutely clear skies today. Transparency and seeing were good, although the Sun at times looked like made of rubber due to large scale undulations. I made the following observation:
Observation date/time: 24 October 09:26 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 (347mm distance, 80mm diameter) Reference: Earth's rotation axis Exposure (transparency): 0.185ms Seeing (SSSMon): 2.5"-3.0" =================================================================== Total number of sunspots: 6 | |
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