NGC1491 (HII region)
From Ashburn , NGC1491 will become visible at around 20:34 (EDT), 48° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, becoming tricky to observe after 23:38 when it dips 21° above your north-western horizon.
Name
NGC1491
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Object type
HII region
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All times shown in Ashburn local time.