Abell 21 (Planetary nebula)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 12 arcminutes across.
Finder chart
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From South El Monte , Abell 21 is not observable – it will reach its highest point in the sky during daytime and is 15° below the horizon at dusk.
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Name
Abell 21
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Object type
Planetary nebula
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Visibility from South El Monte
All times shown in South El Monte local time.