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Hawaiian Astronomical Society
Constellations: Triangulum -- A Triangle
Click the map for a 916x1200 version of the above. Click here for a map better suited for use in the field.
This a more detailed view of the constellation. The map displays stars to magnitude 10, and deepsky objects to magnitude 12. Click here for a map better suited for use in the field.
| 38k GIF. M33 (NGC598) is a fairly bright (mag. 6.2) galaxy located in western Triangulum near the Pisces border. On a dark night you can glimpse it with the naked eye. It is easy in binoculars, but low surface brightness (its size is 70'x42') makes it difficult in telescopes under light polluted skies. High contrast optics and a dark sky, however, allow you to see several bright knots in the galaxy (each with its own NGC number). The brightest of these knots is NGC604, found in the north-eastern arm of the galaxy. Under dark skies it has been glimpsed in a 6".
|64k JPEG. M33 taken with Celestron 8 and ST-7 camera from Mount Pinos. Mosaic of 4 15 minutes exposures... 2x2 binning. Note how nicely the arms are resolved into individual stars. -- Benoit||170k JPEG. M33 presented in false color (for extended dynamic range). You should view this in 18 or 24 bit color. Image: 30 min ST-7 (9u) on 4" f/5 Genesis. Log scaled, then 3 graduated linear scales combined as RGB layers. Stan Moore|
| 102k GIF. NGC 925 is a mag. 10, 10'x5' galaxy located in east-central Triangulum. A significant galaxy in its own right, M33 overshadows it. Dreyer describes it as faint, large, elongated, and with gradual brightening toward the middle. Two mag. 13 stars just to the north, preceding (west) side.