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Astronomy 191/192

To AST191 and 192 Students:

On WEDNESDAY, April 26th the observatory will be CLOSED. 

Updated 4/26/2023 at 8:00 pm

UK Student Visitors  Spring 2023 RevB.pdf


  • Is it going to be clear or cloudy tonight? See Attilla Danko's page for your area. In Lexington, KY,  we use this: Clear Sky Chart. Read the top line of the chart, white is cloudy and dark blue predicts clear skies.
  • Astronomy Picture of the Day:  A visually stunning page with a cogent paragraph explaining the daily image.  Their archives go back to June, 1995.
  • SpaceWeather: Updated every day, the site covers the Sun, the Solar Wind, Aurora Borealis, Noctilucent Clouds, and information of bright satellite passes over your location. (See Satellite Flybys in the panel on the right.)