Sunspot data for 27 February 2024 of period 2024Q1: (PREV DAY - NEXT DAY)
| Sun240227_1538UTC_sketch.jpg | Sun240227_1542UTC.jpg |
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 |  Click here for the sharpened image. |
Today we started out with about 25% cumuli and it soon cleared to only light cirrus and some contrials. By the time I was able to observe the transparency had deteriorated and turned to very poor. The scintillation monitor reported good seeing on average. I made the following observation:
Observation date/time: 27 February 2024 15:38 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): 4.600ms (using 82nm bandwidth green filter) Seeing (SSSMon): 2.0-3.0" (1.2" at best) =================================================================== Total number of sunspots: 19 | |
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