Basic data for Messier's open clusters From: Webda (http://obswww.unige.ch/webda/) by Jean-Claude Mermilliod Extracted by Hartmut Frommert OC dist red m-M log_age Metal d d/ly age/My ----------------------------------- ------ ----- ------ M 6 487 .144 8.90 7.974 +0.10 2 1588 94.2 M 7 301 .103 7.72 8.475 +0.07 0.8 981 299 M 8 1330 .333 11.68 6.867 5.2 4336 7.4 M11 1877 .426 12.73 8.302 +0.14 6 6119 27.1 M16 1749 .782 13.72 6.884 7 5701 7.7 M17 1300 1.51 15.40 6.00 5 4238 1.0 M18 1296 .450 12.00 7.223 4.9 4224 16.7 M20 816 .190 10.17 7.368 5.2 2660 23.3 M21 1205 .281 11.30 7.070 4.25 3928 11.7 M23 628 .356 10.13 8.477 +0.09 2.15 2047 300 M24 3600 .79 15.31 8.30 10 11700 200 M25 620 .473 10.48 7.965 +0.17 2 2021 92.3 M26 1600 .589 12.91 7.931 5 5216 85.3 M29 1148 .744 12.68 7.111 4.0 3742 12.9 M34 499 .070 8.71 8.249 -0.26 1.4 1627 177 M35 816 .262 10.40 7.979 -0.16 2.8 2660 95.3 M36 1318 .222 11.31 7.468 4.1 4297 29.4 M37 1383 .302 11.67 8.540 +0.09 4.4 4509 347 M38 1066 .248 10.93 8.463 -0.11 4.2 3475 290 M39 326 .013 7.61 8.445 0.825 1062 278 M41 693 .027 9.29 8.385 +0.04 2.3 2259 243 M42 399 .05 8.16 7.11 1.6 1301 12.9 M44 187 .009 6.39 8.863 +0.14 0.577 610 729 M45 150 .030 5.98 8.131 +0.11 0.38 489 135 M46 1375 .154 11.18 8.390 +0.06 5.4 4482 245 M47 490 .070 8.67 7.861 1.6 1597 72.6 M48 769 .031 9.53 8.557 +0.08 1.5 2507 361 M50 929 .213 10.52 8.096 3 3028 125 M52 1421 .646 12.83 7.764 5.0 4632 58.1 M67 908 .059 9.98 9.409 -0.15 2.7 2960 2570 M73 620 .07 9.19 9.40 2.0 2021 2500 M93 1037 .046 10.23 8.588 +0.03 3.6 3381 387 M103 2194 .382 12.93 7.336 8.5 7152 21.7