Sunspot data for 5 January 2023 of period 2023Q1: (PREV DAY - NEXT DAY)
| Sun230105_1208UTC_sketch.jpg | Sun230105_1211UTC.jpg |
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 |  Click here for the sharpened image. |
Today we started out with stratus, but around noon it started to clear to a hazy sky (and more stratus on the southwestern horizon). Transparency was poor, but the scintillation monitor reported very good seeing on average. I made the following observation:
Observation date/time: 05 January 12:08 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 (340mm distance, 80mm diameter) Reference: Earth's rotation axis Exposure (transparency): 0.330ms Seeing (SSSMon): 1.5-1.7" (1.0" at best) =================================================================== Total number of sunspots: 29 | |
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