Sunspot data for 4 May 2023 of period 2023Q2: (PREV DAY - NEXT DAY)
| Sun230504_1506UTC_sketch.jpg | Sun230504_1508UTC.jpg |
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 |  Click here for the sharpened image. |
Today we had dense cirrus with some small cumuli. In the afternoon the cirrus reduced, but transparency remained mediocre. The scintillation monitor reported poor seeing on average. I made the following observation:
Observation date/time: 04 May 2023 15:06 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 (346mm distance, 80mm diameter) Reference: Earth's rotation axis Exposure (transparency): 0.600ms (using 82nm bandwidth green filter) Seeing (SSSMon): 4.5"-5.0" (3.0" at best) =================================================================== Total number of sunspots: 25 | |
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