NGC6639 (Open cluster)
From South El Monte , NGC6639 will become visible at around 17:50 (PST), 26° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 27 minutes after the Sun at 20:16.
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Name
NGC6639
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Object type
Open cluster
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All times shown in South El Monte local time.