Sunspot data for 13 September 2022 of period 2022Q3: (PREV DAY - NEXT DAY)
| Sun220913_0758UTC_sketch.jpg | Sun220913_0801UTC.jpg |
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 |  Click here for the sharpened image. |
This morning started out fully overcast, but it soon cleared to about 30% cumuli topped with a hazy layer. Transparency was poor, but the scintillation monitor reported good to reasonable seeing on average. I made the following observation:
Observation date/time: 13 September 09:46 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 Exposure (transparency): 0.300ms Seeing (SSSMon): 1.5-3.5" (1.2" at best) =================================================================== Total number of sunspots: 21 | |
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