AL Globular Cluster Observing Challenge

July through September is a prime time to observe globular clusters. The constellations of Ophiuchus (17 clusters) and Sagittarius (21 clusters) provide 38 globular clusters brighter than magnitude 10.

Yet another challenge suggested by John Goss, former Astronomical League President, and Coordinator of the Dark Skies Observing Program.

13 items observed:

• Item-1: M107
• Item-2: M12
• Item-3: M10
• Item-4: M62
• Item-5: M19
• Item-8: NGC6293
• Item-9: NGC6304
• Item-11: M9
• Item-12: NGC6342
• Item-13: NGC6356
• Item-15: NGC9366
• Item-17: M14
• Item-32: M22

Observation Logs

All observations taken at RCDO (Rancho Cañada Del Oro Open Space Preserve).

• Lat: 37.14778
• Long: -121.7746
• Date: Aug 17, 2022
• Time: 21:22 PST - 00:15 PST
• Seeing: G - VG
• Transparency: 5 - 6
• Equipment: C9.25 SCT, TV 35 Panoptic, TV 17.3 Delos

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