J/AJ/114/850ivo://CDS.VizieR/J/AJ/114/850doi:10.26093/cds/vizier.51140850CDSStone R.C.2023-04-06T16:50:27Z1998-03-15T15:35:49ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.froptical-observationcatalogsastrometryThis paper presents new positions for 689 FK5 stars determined directly in the extragalactic reference system from CCD scan observations made with the Flagstaff Astrometric Scanning Transit Telescope (FASTT). All the observations were made in 1994-1996 with an accuracy of ~+/-40mas in each coordinate. When these positions are compared with their counterparts in the FK5 catalog, systematic errors in the FK5 are found that vary in both right ascension and declination and can be as large as 100 mas in magnitude. No magnitude-dependent errors in the FK5 were found. Moreover, the true error in FK5 star positions is determined to be ~+/-80mas in both coordinates or two times the expected catalog positional errors. There is an excellent agreement between the systematic errors in the FK5 found in this paper and those presented in Lindegren et al. (1995A&A...304...44L) comparing FK5 and Hipparcos 30-month star positions. By comparing corresponding FASTT and FK5 star positions, the link between the optical and extragalactic reference frames was determined and is given by the following rotations ({omega}_x_,{omega}_y_,{omega}_z_) = (3+/-5, 25+/-5, 16+/-4) (s.e.) mas, which agree well with previous determinations made by other investigators. Two of the rotations ({omega}_y_,{omega}_z_) are significantly larger than their standard errors and, therefore, presumably real. Finally, since these rotations are small (<=25mas), the FK5 and extragalactic reference frames must be closely aligned to one another.1997AJ....114..850Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/114/850CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/149A : Fifth Fundamental Catalogue (FK5) Part I (Fricke+, 1988)I/175 : Fifth Fundamental Catalogue (FK5) - Extension (Fricke+ 1991)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/114/850https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/114/850http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/114/850https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/114/850https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/114/850http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/114/850GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/114/850/table (FK5 star positions determined in the extragalactic reference frame with the FASTT CCD meridian telescope)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/114/850/table?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/114/850/table?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/114/850/table?GETtext/xml+votable180.050000true0.490040556-6.0140363890.0055555555555555566/63 79 90 128 155 161 236 290 309 341 346 377 428-429 435 463 472 560 587 618 649 752 770 826 867 934 975 1015 1040 1121 1143 1153 1249 1337 1341 1427 1460 1521 1535 1558 1577 1633 1728 1748-1749 1759 1766 1770 1885 2025 2127 2209 2259 2317 2327 2515 2543 2591 2593 2690-2691 2775 2823 2884 2923 2970 3060 3102 3134 3229 3242 3284 3338 3430 3489 3518 3637 3777 3783 4146 4181 4191 4206 4224 4297 4367 4415 4419 4574 4630 4711 4737 4772 4846 4869 4929 4949 4990 5010 5109 5154 5180 5230 5245 5362 5382 5428 5522 5535 5587 5676 5726 5836 5953 6056 6066 6073 6108 6154 6166 6211 6224 6267 6472 6536 6558 6627 6715 6727 6766 7040 7131 7138 7238 7402 7459 7486 7504 7510 7560 7609-7610 7691 7705 7848 7865 7876 8248 8274 8372 8421 8496 8534 8577 8671 8803 8843 8935 8969 8985 9012 9048 9054 9092 9125 9141 9199 9213 9237 9250 9331 9476 9572 9630 9680 9702 9792 9847 9857 9873-9874 9955 10096 10151 10164 10263 10309 10356 10375 10554 10696 10822 10833 10835 10992 11170 11193 11231 11290 11370 11403 11473 11492 11519 11633 11636 11720 11851 11874 11917 12359 12396 12472 12523 12526 12655 12694 12720 12766 12848 12953 12960 12964 13065 13115 13158 13222 13333 13363 13482 13494 13507 13557 13620 13697 13850 13895 13963 13969 14126 14146 14197 14220 14278 14328 14365 14373 14396 14405 14478 14541 14557 14615 14631-14632 14677 14912 14917 15015 15053 15179 15203 15250 15364 15375 15478 15507 15562 15597 15628 15633 15659 15669 15940 16023 16036 16148 16476 16606 16686 16704 16763 16818 16903 16955 17000 17085 17158 17223 17266 17322 17337 17357 17368 17394 17425 17458 17486-17487 17551 17629 17656 17676 17852 17860 17919 17937 17966 18034 18102 18204 18276 18315 18416 18466 18493 18547 18591 18651 18688 18702 18797 18804 18856 18893 18911 18915 18942 18952 19113 19142 19202 19263 19286 19309 19329 19454 19507 19534 19585 19613 19733 19797 19825 19844 19879 19930 19985 19997 20012 20054 20178 20184 20235 20261 20308 20311 20338 20399 20587 20662 20725 20759 20862 20915 20981 20998 21050 21060 21073 21196 21233 21285 21289 21324 21362 21526 21677 21738 21788 21792 21806 21885 21939 21967 22015 22058 22070 22104 22160 22214 22250 22269 22381 22412 22473 22560 22637 22711 22759 22772 22790 22888 22966 23047 23081 23102 23115 23201 23230 23281 23298 23360 23369 23423 23426 23442 23483 23533 23547 23552 23576 23621 23675 23717 23769 23820 23864 23876 23922 23963 23996 24020 24108 24144 24160 24179 24207 24223 24333 24379 24420 24524 24570 24694 24799-24800 24924 24942 25138 25182 25199 25278 25304 25447 25487 25571 25617 25656 25693 25708 25769 25789 25816 25902 25930 25941 25973 26014 26078 26120 26141 26145 26254 26302 26320 26412 26446 26676 26736 26754 26758 26783 26867 26929 26959 26975 27102 27163 27178 27198 27366 27464 27498 27506 27610 27694 27735 27752 27890 27893 27957 28049 28128 28151 28208 28252 28324 28383 28480 28605 28664 28838 28940 28987 29020 29089 29161 29208 29212 29311 29321 29446 29525 29533 29540 29582 29589 29640 29712 29774 29876 29939 30014 30024 30035 30083 30128 30165 30171 30210 30229 30234 30286 30343 30475 30518 30529 30544 30623 30735 30798 30953 30995 31017 31072 31160 31169 31187 31325 31373 31544 31576 31600 31716 31756 31830 31987 32023 32061 32085 32133 32192 32243 32288 32311 32384 32477 32562 32575 32725 32754 34745 34777 35676 35756 35796 35836 36072 36145 36177 36240 36298 36317 36379 36433 36498 36548 36564 36575 36609 36635 36651 36693 36697 36711 36759 36787 36850 38779 38812 38875 39864 39868 39893 39926 40062 40095 40195 40213 40336 40355 40421 40476 40606 40654 40706 40757 40838 40922 40943 43959 43996 44015 44125 44156 44204 44248 44258 44284 44386 44411 44437 44471 44479 44518 44554 44569 44584-44585 44722 44771 44789 44799 44833 44859 44883 44931 44993 45032 47028 47056 47101 47967 48051 48250 48302 48330 48355 48516 48572 48587 48636 48804 48856 48872 48900 48910 48963 48992 49047 49049 49060 49114 49123https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/114/850?format=asciiOpticaldefaultJ/AJ/114/850/tableFK5 star positions determined in the extragalactic reference frame with the FASTT CCD meridian telescoperecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning numbermeta.idintFK5FK5 star number (Cat. <I/149>, <I/175>)meta.id;meta.mainintHDHD designationmeta.idintVmagV magnitude taken from FK5 catalogmagphot.mag;em.opt.VfloatRAJ2000Right ascension, J2000pos.eq.ra;meta.maine_RAsStandard error in RA0.0001sstat.errorfloato_RAhNumber of times observed in RAmeta.numberintEpRA-1900Mean epoch of RA coordinate (+ 1900)yrtime.epochfloatpmRAProper motion in RA taken from FK50.01s.yr**-1pos.pm;pos.eq.rafloatDEJ2000Declination signpos.eq.dec;meta.maine_DEsStandard error in DEmasstat.errorinto_DEdNumber of times observed in DEmeta.numberintEpDE-1900Mean epoch of DE coordinate (+ 1900)yrtime.epochfloatpmDEProper motion in DE taken from FK510mas/yrpos.pm;pos.eq.decfloat