Sunspot data for 5 March 2023 of period 2023Q1: (PREV DAY - NEXT DAY)
| Sun230305_1245UTC_sketch.jpg | Sun230305_1254UTC_lum.jpg |
|---|---|
 |  Click here for the sharpened image. |
Today started out grey, but around midday it started to clear to about 70% cumuli, topped with 90% cirrus. Transparency was good, but the scintillation monitor reported poor seeing on average. I made the following observation:
Observation date/time: 05 March 12:45 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 (341mm distance, 80mm diameter) Reference: Earth's rotation axis Exposure (transparency): 0.550ms (using 82nm bandwidth green filter) Seeing (SSSMon): 3.5"-4.0" (2.5" at best) =================================================================== Total number of sunspots: 22 | |
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