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| | The Galaxy Catalog - User Guide - 1 (Site not responding. Last check: 2007-10-14) |
 | | Irregular galaxies, which account for about 5 percent of the galaxies we observe nearby, are forming, colliding, dynamically disturbed systems that do not fit in any of the other three categories. |
 | | Lenticulars are denoted S0 (or SB0, with a bar), and subdivided to classes 1, 2, and 3, based on dust absorption within their disks. |
 | | Among the 22 galaxies we have 16 spirals (M58, M61, M63, M65, M81, M88, M90, M91, M95, M96, M98, M99, M100, M104, M106 and M108), 4 ellipticals (M49, M59, M87 and M105), and 2 lenticulars (M84 and M86). |
| www.astro.princeton.edu /~frei/Gcat_htm/cat_ug_1.htm (1649 words) |
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