M43 (HII region)

R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 20 arcminutes across.

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From South El Monte , M43 is visible in the dawn sky, rising at 02:03 (PDT) and reaching an altitude of 36° above the south-eastern horizon before fading from view as dawn breaks at around 05:20.

Name M43
Object type HII region
Other names
De Mairan's Nebula
M43[1]
NGC 1982[2]
Position
Right ascension:05h35m [2]
Declination:−05°16' [2]
Constellation:Orion
Magnitude:9.00 (V) [2]
9.00 (B) [2]
Distance:490.6 parsec
1599.2 lightyrs [1]
B-V Color (mag):0.00
Derived quantities
Absolute mag (V):0.55

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