NGC6858 (Open cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From South El Monte , NGC6858 will become visible at around 17:45 (PST), 44° above your western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 21:28.
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Name
NGC6858
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Object type
Open cluster
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Source