LDN 491 (Dark nebula)
From Columbus , LDN 491 will become visible at around 18:18 (EST), 24° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting 3 hours and 29 minutes after the Sun at 20:39.
Name
LDN 491
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Object type
Dark nebula
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All times shown in Columbus local time.