Illustration of a kid's hand holding a marker, drawing the features of the Moon against a night sky.
Published: September 5, 2023

Viewing the Moon with a telescope or imaging equipment? Take on a two-part Observing Challenge from the Astronomical League.

  • Locate and observe the 20 objects on the target list below, and document your observations with (1) the date and time, (2) the location where you did the observation, and (3) a sketch or image of those objects.
    • Craters:
      1. Albategenius
      2. Atlas
      3. Cassini
      4. Catharina
      5. Cleomedes
      6. Cyrilles
      7. Endymion
      8. Eudoxus
      9. Fracastorius
      10. Hercules
      11. Macrobius
      12. Picard
      13. Piccolomini
      14. Plinius
      15. Posidonius
    • Other Features:

      1. Lacus Mortis
      2. Mons Hadley
      3. Rupes Altai
      4. Rima Hygremus
      5. Vallis Alpes
  • Do an outreach activity related to the Moon and International Observe the Moon Night. This could be an official International Observe the Moon Night event, or any activity that encourages observing the Moon in general.

For more information about the challenge, including details about how to document and submit your observations, visit the Astronomical League website.

Note: You may make your observations anytime between October 18, 2023 and October 25, 2023. The deadline for submission is November 21, 2023. You do not need to be a member of the Astronomical League to participate in this challenge.

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