Sharpless 138 (HII region)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From Cambridge , Sharpless 138 is visible in the dawn sky, becoming accessible around 00:12 (EDT), when it reaches an altitude of 21° above your north-eastern horizon. It will then reach an altitude of 49° before fading from view as dawn breaks at 04:13.
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Name
Sharpless 138
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Object type
HII region
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