Constellation of the Month: ___
Triangulum (The Triangle)

by: John Mirtle.
Page last updated: May 3, 2004

Contents
Small Scope Objects Big Scope Objects Challenge Objects Maps Photos

Small Scope Objects:

	Name	R.A.	Decl.	Details
	S 227 (Iota or 6 Tri.)	.	.	Colourful double star with good colour contrast. Components are strong yellow and pale blue, separated by 3.8 arc sec. - Magnitudes 5 and 6.4
	M33 (NGC 598)	01hr 33.9m	+30° 39'	Third largest member of the local group of galaxies. Magnitude 5.7, 60 x 40 arc minutes in size. This face-on spiral can be difficult to see due to it's large size. Use low power, may be easier to spot in finder or binoculars.

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Big Scope Objects:

Name	R.A.	Decl.	Details
NGC 604	.	.	Located 10 arc minutes from the center of M33, P.A. 50°. A large HII region located in M33, one of the few nebula visible that is outside our galaxy.
NGC 925	02hr 27m	+33° 35'	This faint SBc spiral measures 9.4' x 4.0' and shines at magnitude 12.0. Central bar and spiral structure visible in 17.5" and larger scopes.
NGC 672	01hr 48m	+27° 26'	A bright SBc barred spiral measuring 6.6 x2.7 arc minutes. Magnitude 11.6. Look for IC 1727 in same field.
NGC 750 and NGC 751	01hr 57m	+33° 12'	A pair of elliptical galaxies, each measuring just over one arc minute in diameter. Magnitudes 12.2 and 12.5, separated by 24 arc.sec.
NGC 949	02hr 31m	+37° 08'	A small Sb spiral galaxy, measuring only 1.1 x 0.4 arc minutes. Magnitude 12.8

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Challenge Objects:

	Name	R.A.	Decl.	Details
	IC 1727	01hr 47m	+27° 20'	A large but faint spiral galaxy near NGC 672. Mag. 11.6, spread over 6.2 x 2.9 arc minutes of sky.
	NGC 736	01hr 56.7m	+33° 03'	Located 15 arc minutes SW of NGC 750/51, this galaxy measures 2 x 1.9 arc minutes and glows at magnitude 12.2.

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Constellation Maps:

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Photos:

Photo 1
South is at top to match the view in an inverting telescope.
Photo credit: John Mirtle.
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Constellation of the Month: ___Triangulum (The Triangle)