Astrographic Catalog Reference Stars (ACRS) I/171 ivo://CDS.VizieR/I/171 CDS Corbin T.E. Urban S.E. Warren W.H. Jr. 2018-01-15T14:20:16Z 2012-11-23T14:47:22Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr astrometry proper-motions The ACRS is an all-sky catalog of positions and proper motions that is based on the AGK3 in the north and on the newly completed second Cape Photographic Catalogue (CPC2, de Vegt et al. 1989) in the south. The astrometric data are on the system of the International Reference Stars (IRS, catalog <I/172>), compiled on B1950.0 FK4 and then transformed to J2000.0 FK5. The ACRS contains 320,111 stars, the mean positions for which were derived from a total of 1,643,783 individual input positions. The catalog is divided into two parts. Part 1 contains stars having better observational histories and, therefore, more reliable positions and proper motions, while the stars in Part 2 have poor histories and consist mostly of objects for which only two catalog positions in one or both coordinates were available for computing proper motions. For Part 1, which consists of 78 percent of the catalog, the mean errors of the proper motions in right ascension and declination are 0.47 and 0.46 seconds of arc/century (4.7 and 4.6 mas/yr), respectively. It is intended that, as more observations are accumulated for stars in Part 2, they will be migrated to Part 1. The catalog was compiled at the U.S. Naval Observatory, Washington, D.C., for purposes of performing new reductions of the Astrographic Catalogue plates. Additional details about the construction of the ACRS may be found in Corbin and Urban (1989). The data included are catalog part, ACRS number, equatorial coordinates (equinox, equator, epoch B1950.0 and J2000.0), proper motions (B1950.0 and J2000.0), original epochs, weights for right ascension and declination, and reference data such as DM numbers (BD, CD, CPD), AGK3 and CPC2 designations, and an IAU recommended ACRS identifier (based on coordinates). NASA, NSSDC 91-10 (1991) https://cdsarc.cds.unistra.fr/viz-bin/cat/I/171 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to I/15 : FK4 Catalogue (Fricke and Kopff, 1963) I/72 : AGK3R Catalogue (Corbin, 1978) I/85 : CPC2 (2nd Cape Photographic Catalogue 1950, Nicholson et al., 1984) I/172 : IRS (International Reference Stars, Corbin, 1991) I/149 : FK5 Catalogue (Fricke et al., 1988, Veroff. ARI 32) I/219 : Cape AC Zone (-41 to -51) Reduced to ACRS (Urban & Corbin, 1995) I/222 : San Fernando AC Zone (-3 to -9) (Urban et al., 1995) I/223 : Algiers AC Zone (+4 to -2) Reduced to ACRS (Urban et al., 1995) I/224 : Oxford 1 AC Zone (+25 to +31) Reduced to ACRS (Urban et al., 1996) I/225 : Oxford 2 AC Zone (+32 to +33) Reduced to ACRS (Urban et al., 1996) I/226 : Vatican AC Zone (+55 to +64) Reduced to ACRS (Urban et al., 1996) I/227 : Paris AC Zone (+18 to +24) Reduced to ACRS (Urban et al., 1996) I/228 : Bordeaux AC Zone (+11 to +17) Reduced to ACRS (Urban et al., 1996) I/231 : Uccle AC Zone (+05 to +11) Reduced to ACRS (Urban et al., 1996) I/232 : Toulouse AC Zone (+34 to +35) Reduced to ACRS (Urban et al., 1996) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=I/171 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=I/171 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=I/171 https://vizier.cds.unistra.fr/viz-bin/votable?-source=I/171 https://vizier.iucaa.in/viz-bin/votable?-source=I/171 http://vizieridia.saao.ac.za/viz-bin/votable?-source=I/171 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table I/171/acrs1 (Part 1: more reliable stars) https://vizier.cds.unistra.fr/viz-bin/conesearch/I/171/acrs1? https://vizier.iucaa.in/viz-bin/conesearch/I/171/acrs1? http://vizieridia.saao.ac.za/viz-bin/conesearch/I/171/acrs1? GET text/xml+votable 180.0 50000 true 3.914e-05 -5.49418797 0.005555555555555556 1/0 2 4 6 11 12 13 14 19 21 23 29 31 36 2/5 6 7 12 14 15 22 28 29 32 33 37 38 39 41 60 61 62 71 74 75 80 81 83 89 91 96 105 106 107 108 110 113 123 128 129 130 132 135 148 150 151 153 154 155 156 157 158 160 162 163 164 166 169 171 176 177 178 186 187 188 3/17 18 19 52 53 54 80 82 83 84 86 87 92 94 121 122 123 125 126 127 137 138 139 140 142 143 145 146 147 161 162 163 168 169 171 172 173 174 253 254 255 256 257 258 260 264 272 273 275 276 277 282 283 288 290 291 293 295 328 330 331 353 355 361 362 363 389 390 393 401 406 407 408 409 411 412 413 415 418 436 438 439 445 446 447 448 449 456 458 459 462 463 485 486 487 488 490 491 524 525 533 534 535 536 537 539 544 546 552 553 557 558 559 561 562 563 564 565 597 599 608 609 611 636 638 639 644 645 646 661 662 668 669 670 672 673 674 681 682 683 688 689 690 692 697 699 701 716 717 719 722 724 725 727 728 730 731 732 733 734 736 737 738 740 742 743 756 758 759 760 761 763 764 766 767 4/64 65 66 220 221 223 324 325 327 340 341 342 373 374 375 380 382 383 481 482 483 496 497 499 544 545 546 564 565 566 577 578 579 640 642 643 680 681 683 700 702 703 1008 1010 1011 1037 1038 1039 1044 1045 1050 1051 1052 1060 1063 1064 1066 1067 1068 1069 1070 1072 1074 1075 1076 1077 1080 1082 1085 1097 1098 1099 1112 1113 1114 1117 1118 1119 1122 1123 1125 1126 1127 1157 1159 1169 1170 1177 1178 1179 1316 1317 1319 1408 1410 1411 1416 1417 1418 1440 1441 1442 1552 1553 1554 1564 1565 1567 1568 1569 1570 1576 1579 1580 1581 1583 1584 1588 1590 1591 1593 1594 1595 1596 1599 1600 1601 1602 1608 1609 1610 1612 1613 1615 1616 1617 1619 1621 1622 1623 1640 1641 1643 1657 1658 1659 1664 1665 1666 1669 1670 1671 1677 1678 1679 1750 1751 1776 1779 1800 1801 1802 1804 1805 1807 1828 1830 1831 1840 1842 1843 1844 1845 1846 1923 1926 1927 1928 1929 1931 1932 1934 1935 1937 1938 1939 1957 1958 1959 2104 2105 2106 2108 2109 2111 2128 2129 2130 2152 2153 2155 2181 2182 2188 2190 2191 2193 2196 2198 2199 2200 2202 2203 2204 2205 2207 2217 2218 2221 2222 2223 2224 2226 2227 2240 2242 2243 2266 2267 2268 2270 2272 2274 2275 2276 2277 2279 2281 2282 2283 2285 2286 2289 2290 2291 2292 2293 2295 2298 2299 2300 2301 2302 2384 2385 2386 2392 2393 2394 2440 2441 2442 2548 2549 2551 2588 2589 2591 2640 2642 2643 2653 2654 2655 2684 2685 2686 2700 2702 2703 2720 2721 2723 2764 2765 2766 2772 2773 2774 2776 2777 2778 2781 2782 2783 2784 2785 2786 2792 2793 2794 2800 2801 2803 2808 2809 2810 2812 2814 2815 2872 2874 2875 2881 2882 2883 2884 2885 2886 2893 2894 2895 2904 2907 2916 2918 2919 2940 2941 2942 2956 2957 2958 2965 2966 2967 3031 3050 3051 3061 3062 3063 5/268 270 271 888 890 891 1304 1306 1372 1373 1375 1488 1489 1490 1524 1525 1526 1920 1922 1923 1993 1994 1995 2188 2190 2191 2269 2270 2271 2305 2306 2307 2564 2565 2566 2728 2729 2730 2805 2806 2807 4037 4038 4039 4144 4146 4147 4184 4185 4187 4189 4190 4191 4192 4193 4194 4197 4198 4199 4212 4214 4215 4216 4218 4221 4222 4223 4245 4246 4247 4248 4249 4251 4260 4262 4263 4284 4286 4287 4293 4294 4295 4312 4315 4317 4318 4319 4324 4325 4326 4332 4333 4334 4336 4337 4339 4344 4345 4347 4348 4350 4351 4385 4386 4387 4460 4462 4463 4464 4465 4467 4482 4483 4484 4485 4486 4496 4497 4499 4624 4625 4627 4633 4634 4635 4672 4673 4675 4684 4686 4687 4704 4705 4707 5272 5273 5274 5636 5637 5639 5676 5678 5679 5773 5774 5775 6220 6222 6223 6264 6266 6284 6285 6286 6308 6309 6310 6312 6313 6314 6328 6330 6331 6341 6342 6343 6344 6345 6346 6349 6351 6356 6358 6359 6368 6369 6370 6388 6390 6391 6393 6394 6412 6413 6415 6445 6446 6447 6456 6457 6458 6472 6473 6474 6480 6481 6482 6568 6569 6570 6625 6626 6627 6668 6669 6670 6672 6673 6675 6704 6705 6707 6992 6993 6994 6997 6998 6999 7108 7110 7111 7112 7113 7115 7212 7213 7214 7224 7225 7227 7316 7317 7319 7364 7365 7366 7388 7389 7391 7680 7681 7682 7684 7686 7688 7690 7691 7696 7697 7698 7701 7702 7703 7720 7722 7723 7734 7735 7744 7745 7824 7825 7827 8429 8430 8431 8440 8441 8443 8525 8527 8617 8618 8619 8721 8722 8723 8732 8733 8734 8756 8757 8758 8768 8770 8771 8777 8778 8779 8780 8781 8783 8789 8790 8791 8805 8806 8807 8824 8826 8827 8865 8866 8867 8876 8877 8879 8881 8882 8883 8900 8902 8903 8964 8965 8967 9056 9057 9059 9060 9061 9076 9078 9079 9084 9085 9086 9092 9093 9094 9112 9113 9115 9120 9121 9123 9136 9137 9138 9149 9151 9152 9153 9155 9177 9178 9179 9184 9185 9186 9189 9190 9191 9212 9214 9215 9549 9550 9551 9581 9582 9583 9772 9773 9774 10200 10202 10203 10360 10361 10363 10565 10566 10567 10608 10609 10611 10750 10804 10805 10807 10888 10889 10890 11068 11070 11071 11100 11101 11102 11116 11117 11119 11120 11121 11123 11148 11149 11150 11180 11181 11182 11208 11209 11211 11244 11245 11252 11253 11254 11493 11494 11495 11520 11522 11523 11548 11549 11550 11568 11569 11571 11620 11621 11623 11625 11626 11627 11668 11669 11670 11772 11773 11774 11836 11838 11839 11857 11858 11859 12112 12115 12116 12117 12118 12121 12122 12123 12192 12194 12195 12197 12198 12199 12240 12241 12243 6/1077 1078 1079 3556 3558 3559 5220 5221 5223 5228 5230 5231 5496 5497 5498 5964 5966 5967 6108 6109 6111 7684 7685 7687 7968 7970 7971 8757 8758 8759 9072 9074 9075 9216 9217 9218 10268 10270 10271 10924 10926 10927 11217 11218 11219 16144 16145 16147 16581 16582 16745 16746 16747 16752 16754 16755 16780 16781 16783 16784 16785 16787 16853 16854 16855 16868 16870 16871 16876 16877 16878 16880 16882 16883 16976 16977 16979 17000 17001 17003 17045 17046 17047 17140 17142 17169 17170 17171 17252 17254 17255 17256 17258 17259 17264 17265 17266 17308 17310 17311 17341 17342 17343 17352 17353 17355 17384 17385 17386 17397 17398 17399 17536 17537 17538 17844 17846 17847 17864 17865 17866 17921 17922 17923 17924 17925 17927 17948 17949 17951 17993 17994 17995 18505 18506 18507 18528 18529 18531 18696 18697 18698 18740 18742 18743 18824 18825 18826 21100 21101 21102 22552 22553 22555 22709 22710 22711 23088 23089 23090 24884 24886 24887 25060 25061 25063 25068 25070 25071 25149 25150 25151 25245 25246 25247 25260 25262 25263 25316 25317 25318 25360 25361 25363 25388 25389 25391 25392 25393 25394 25400 25401 25403 25429 25430 25431 25484 25485 25487 25556 25557 25559 25568 25569 25571 25582 25583 25656 25658 25659 25777 25778 25779 25837 25838 25839 25900 25901 25903 25933 25934 25935 26284 26285 26286 26497 26498 26499 26684 26685 26687 26696 26697 26698 26824 26826 26827 27980 27982 27983 27984 27985 27987 28437 28438 28439 28456 28457 28458 28860 28861 28863 28904 28905 28907 29272 29274 29275 29468 29470 29471 29561 29562 29563 30732 30733 30735 30740 30742 30743 30748 30750 30751 30756 30758 30759 30796 30797 30799 30800 30801 30802 30885 30886 30887 30928 30929 30930 30932 30933 30935 30984 30986 30987 30988 30989 30991 31304 31305 31307 33713 33714 33715 33768 33770 33771 34096 34097 34099 34104 34105 34107 34465 34466 34467 34880 34882 34883 34941 34942 34943 35036 35038 35039 35076 35077 35078 35104 35105 35106 35128 35129 35131 35152 35153 35154 35216 35217 35218 35300 35301 35302 35456 35457 35459 35512 35513 35515 35521 35522 35523 35604 35605 35606 35864 35865 35866 36232 36233 36234 36248 36249 36251 36252 36253 36254 36308 36309 36311 36348 36350 36351 36380 36381 36383 36456 36458 36459 36488 36489 36490 36556 36557 36559 36593 36594 36595 36600 36602 36603 36617 36618 36619 36704 36705 36707 36748 36749 36750 36752 36754 36755 36852 36854 36855 38193 38194 38195 38320 38321 38323 39100 39101 39103 40804 40805 40807 41448 41449 41451 42256 42258 42259 42441 42442 42443 42994 42995 42996 42997 42999 43004 43005 43007 43225 43226 43227 43564 43565 43567 44276 44277 44278 44412 44414 44415 44472 44474 44475 44488 44489 44490 44604 44605 44607 44732 44733 44735 44841 44842 44843 44984 44985 44986 44989 44990 44991 45020 45021 45022 45968 45970 45971 46084 46086 46087 46205 46206 46207 46280 46281 46282 46488 46490 46491 46496 46497 46498 46685 46686 46687 47100 47102 47103 47349 47350 47351 47424 47426 47427 48452 48454 48455 48456 48457 48458 48477 48478 48479 48480 48481 48483 48772 48773 48774 48784 48785 48786 48968 48969 48970 https://cdsarc.cds.unistra.fr/viz-bin/moc/I/171?format=ascii default I/171/acrs1 Part 1: more reliable stars e_RAB1950 ?Mean error in RA at original epoch ms stat.error;pos.eq.ra int nullable recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int PartNum [1,2] Catalog Part number, '1' or '2' meta.id;meta.dataset int ACRS [1,570159]+ ACRS sequential number meta.id;meta.main int primary indexed RAB1950 Hours RA, equinox=B1950, Epoch=B1950.0 pos.eq.ra;meta.main indexed DEB1950 Degrees Dec, equinox, epoch B1950.0 pos.eq.dec;meta.main e_DEB1950 ?Mean error in Dec at original epoch 10mas stat.error;pos.eq.dec int nullable pmRA RA proper motion, FK4 system ms/yr pos.pm;pos.eq.ra float pmDE DE proper motion, FK4 system mas/yr pos.pm;pos.eq.dec double e_pmRA ?Mean error on pmRA ms/yr stat.error;pos.pm;pos.eq.ra float nullable e_pmDE ?Mean error on pmDE mas/yr stat.error;pos.pm;pos.eq.dec float nullable EpRA Original epoch of RA (epoch of mean position) yr time.epoch double EpDE Original epoch of DE (epoch of mean position) yr time.epoch double o_RAB1950 Number of positions in RA meta.number int o_DEB1950 Number of positions in DE meta.number int w_RAB1950 Sum of the weights in RA stat.weight float w_DEB1950 Sum of the weights in DE stat.weight float Pmag [140/1350]? Photographic magnitude mag phot.mag;em.opt float nullable SpType Spectral type src.spType char BD Bonner Durchmusterung number <I/122> meta.id char CD Cordoba Durchmusterung number <I/114> meta.id char CP Cape Photographic Durchmusterung <I/108> meta.id char AGK3 AGK3 number <I/61> meta.id char CPC2 Second Cape Photograpic Catalog <I/85> meta.id char ACRSJ ACRS number, ACRS Jhhmmss.ssSddmmss.s meta.id char RA2000 Hours RA, Equinox=J2000, Epoch=J2000 time.epoch;pos.eq.ra pmRA2000 Centennial RA proper motion, J2000.0 ms/yr pos.pm;pos.eq.ra float DE2000 Degrees Dec, equinox, epoch J2000.0 time.epoch;pos.eq.dec pmDE2000 Centennial Dec proper motion, J2000.0 mas/yr pos.pm;pos.eq.dec float _RA.icrs Right ascension (ICRS) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) pos.eq.ra nullable indexed _DE.icrs Declination (ICRS) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) pos.eq.dec nullable indexed