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Trifid Nebula: M20 = NGC6514 (Bright Diffuse Nebula): the nebula of light located to center,
M21 = NGC6531 = Cr363 = Mel.188 (Open Cluster): the cluster located to upper side
[Sagittarius]

Jun.20 1998, 24hr.49mim.JST (8min. Exposure)
Location: the Kasuo Pass, Awano town, Tochigi pref., Japan
Epsilon210c (21cm-reflector, f=628mm, F:3.0), Fuji-film SGA800

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Object Data

M20 = NGC6514 Trifid Nebula
Type of object	Bright Diffuse Nebula	Type	-
Constellation	Sagittarius
R.A.	18h 01.9m (2000.0)	Dec.	-23° 02' (2000.0)
Mag.(v)	-	Mag.(p)	-
Diameter	29' * 27'	Distance	2200 light-year
note	-
M21 = NGC6531 = Cr363 = Mel.188
Type of object	Open Cluster	Type	d
Constellation	Sagittarius
R.A.	18h 04.8m (2000.0)	Dec.	-22° 30' (2000.0)
Mag.(v)	6.5	Mag.(p)	-
Diameter	10'	Distance	3000 light-year
note	Containing about 50 stars

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