Location: St. Croix Observatory (SCO)
Date: 2025-09-21
Time: 8:50 PM ADT
S&T Chart Reference: 56
Instrument: 10" Meade SCT
Eyepiece: 40mm eyepiece
Transparency: Very Good (4)
Seeing: Very Good (4)
SQM: not recorded
Temperature: not recorded
This was a very faint cluster below Xi (ξ) Ophiuchus (the centre star in his cloak hemline). Could not discern stars in its core; it appeared just a pale fuzzy. However, there were 3 bright stars in what was its periphery or narrow border, and then a line of fainter stars arcing away from it.There was a bright star in the lower left quadrant; don't think it was Xi (ξ) Ophiuchus but could have been HD 149123.
Note: The 5 stars around and away from the core looked like the Southern Cross in configuration. The nebulosity was not circular; it was slightly rectangular in appearance.
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Constellation: Ophiuchus Type: Globular Cluster Magnitude: 8.1 Distance: 20.9 kly Size: 10.0' |