LDN 1644 (Dark nebula)

From South El Monte , LDN 1644 is visible in the dawn sky, rising at 02:47 (PDT) – 3 hours and 32 minutes before the Sun – and reaching an altitude of 28° above the south-eastern horizon before fading from view as dawn breaks at around 05:18.
Name
LDN 1644
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Object type
Dark nebula
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All times shown in South El Monte local time.