VizieR

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VizieR

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The 3 columns in color are computed by VizieR, and are not part of the original data.

Note: USNO-A2.0 contains 526,280,881 sources, and is based on a re-reduction of the Precision Measuring Machine (PMM) scans from POSS-I O and E plates (>=-18°) and SRC-J and ESO-R plates (<=-20°). USNO-A2.0 was created by Dave Monet () and collaborators at Flagstaff Station, U.S. Naval Observatory.
The major difference between USNO-A2.0 and its previous version USNO-A1.0 is that A1.0 used the Guide Star Catalog as its reference frame whereas A2.0 uses the ICRF as realized by the USNO ACT catalog (Urban et al. 1997). The VizieR search engine uses an on-line compressed version (3.6Gbytes) which was generated at CDS.

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RAJ2000
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DEJ2000
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ACTflag
Mflag
Bmag
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mag
Epoch
yr
1 0.78018 15 51.63936-31 07 03.10080525-33798906273.965164-31.117528  *16.316.21977.115
2 8.32818 15 51.77208-31 06 54.79200525-33799370273.965717-31.115220    20.217.41977.115
%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eGuide%20Star%20Catalog%20has%20been%20constructed%20to%20support%20the%20%0aoperational%20need%20of%20the%20Hubble%20Space%20Telescope.%0aIt%20contains%20over%2025%20million%20positions%20for%20about%2019%20million%0aobjects,%20of%20which%20more%20than%2015%20million%20are%20classified%20as%20stars.%0aThe%20version%20%3cB%3e1.2%20is%20a%20new%20astrometric%20reduction%20which%20results%20in%0aabsolute%20position%20errors%20about%200.3-0.4%20arcsec.%0a%28see%20GSC%20pages%20at%20URL%20http://www-gsss.stsci.edu/gsc/gsc.html%29%0a%3cP%3e%0a
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Plate
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1 0.3018 15 51.6768-31 07 03.0360739200749273.96532-31.11751 0.412.34 0.40 60060E1987.377
%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eGSC-ACT%20%3cEM%3e%28or%20%3cB%3eGSC1.3%29%0ais%20a%20recalibration%20of%20the%20%3cB%3e<%25E%20I/220%7cGSC1.1>,%20the%20catalogue%20constructed%20%0ato%20support%20the%20operational%20need%20of%20the%20Hubble%20Space%20Telescope,%0awith%20the%20%3cB%3e<%25E%20I/246%7cACT>,%20the%20combination%20of%20the%20Astrographic%20Catalogue%0aand%20the%20%3cB%3e%3cEM%3eTycho%20catalogue%20derived%20from%20the%20%3cEM%3e<%25E%20I/239%7cHipparcos>%0amission;%20see%20http://www.projectpluto.com/gsc_act.htm%20for%20more%20details%0aabout%20this%20recalibration.%0a%3cP%3e%0a
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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.30&%3cFONT%20COLOR=%27#CD5B45%27>18%2015%2051.6840&%3cFONT%20COLOR=%27#CD5B45%27>-31%2007%2003.288&0739200749&273.96535&-31.11758&%200.4&12.36&%200.40&%206&0&1987.377%3cBR%3e%0a %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20construction%20of%20the%20%0a%3cB%3eGSC-II%20%0ais%20still%20in%20progress:%20this%0aversion%20has%20no%20proper%20motions,%20and%20the%20magnitude%20limits%20are%2018.5%20in%20F%20%28red%29%0aand%2019.5%20in%20J%20%28blue%29.%20The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%20%0athe%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a
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mag
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1 0.25118 15 51.68136-31 07 02.9964S301312154348273.965339-31.1174991987.377        0 4.71 0.05
2 0.43618 15 51.66720-31 07 02.9604S301312166273.965280-31.1174891996.69711.56 0.45    0 5.63 0.06
%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eUSNO-B%20Catalog%20presents%20positions,%20proper%20motions,%20%0amagnitudes%20un%20blue,%20red%20and%20infrared,%20as%20well%20as%20star/galaxy%20estimators%0afor%201,045,175,762%20objects%20derived%20from%203,648,832,040%20separate%20observations.%0aThe%20data%20were%20taken%20from%20scans%20of%207,435%20Schmidt%20plates%0ataken%20from%20various%20sky%20surveys%20during%20the%20last%2050%20years.%3cBR%3e%0aUSNO-B1.0%20catalog%20was%20created%20by%20Dave%20Monet%20and%20collaborators%0aat%20http://www.nofs.navy.mil/data/fchpix/%20%3cBR%3e%0a%3cB%3e%3cFONT%20COLOR=%27#EE0000%27>%20Note%20that%20the%20star/galaxy%20estimators%20may%20be%20mixed%20up%0a%20in%20dense%20regions.%0a%3cP%3e%0a
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mag
1 0.24018 15 51.71208-31 07 03.25200588-0682344273.965467-31.1175701022861972.8 18 -6515.1413.5114.0411.8411.03

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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.240&%3cFONT%20COLOR=%27#CD5B45%27>18%2015%2051.71208&%3cFONT%20COLOR=%27#CD5B45%27>-31%2007%2003.2520&0588-0682344&273.965467&-31.117570&102&286&1972.8&%20%20%20%2018&%20%20%20%20-6&5&15.14&13.51&14.04&11.84&11.03%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66382f9e23b47f&-out.add=.&-source=I/284/out&USNO-B1.0===0588-0682353&-out.orig=o' class='full'2 1.55418 15 51.81600-31 07 02.62200588-0682353273.965900-31.1173959999991972.8 116 -244526.6622.2017.3713.8816.20 3 2.12918 15 51.59088-31 07 04.67040588-0682337273.964962-31.1179642056041977.1 22 983  16.12  14.6014.48 4 4.05618 15 51.99600-31 07 01.65000588-0682368273.966650-31.1171259996001982.4 778 2323    15.1514.1313.27 5 6.49418 15 52.19088-31 07 01.50240588-0682385273.967462-31.1170849996301975.1 378 648319.39  20.5811.33   6 7.28718 15 51.43944-31 07 09.54120588-0682327273.964331-31.1193174832541966.4 0 0218.11  16.16     7 7.92018 15 51.08616-31 07 03.82080588-0682299273.962859-31.1177281139991971.1 92 803  17.1516.66  15.64 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20More%20recent%20versions%20available:%20UCAC3%20%28I/315%29%20and%20UCAC4%20%28I/322%29;%20see%20also%20the%20UCAC%20home%20page%20at%20http://ad.usno.navy.mil/ucac/%3cP%3e%0a
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mag
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mag
1 0.13518 15 51.697008-31 07 02.9391618754986273.9654042 15-31.1174831 1512.00 8 2 9.4 4.6 24577209 9.943 9.241
%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20Naval%20Observatory%20Merged%20Astrometric%20Dataset%20%28NOMAD%29%20contains%0aastrometric%20and%20photometric%20data%20for%20over%201%20billion%20stars%20derived%20from%0athe%20Hipparcos%20%28I/239%29,%20Tycho-2%20%28I/259%29,%20UCAC2%20%28I/289%29,%20and%20USNO-B1.0%0a%28I/284%29%20catalogs%20for%20astrometry%20and%20optical%20photometry,%20supplemented%0aby%202MASS%20%28II/246%29%20near-infrared%20photometry.%3cBR%3e%0a%3cFONT%20SIZE=%27-1%27%3eAn%20efficient%20remote%20query%20program%20%3cB%3efindnomad1%20is%0aavailable%20in%20the%20cdsclient%20%0apackage,%20for%20Unix/Linux%20platforms%0a%3cP%3e%0a
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Jmag
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%22>%5cFONT SIZE=-1magHmag
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R
1 0.13518 15 51.697008-31 07 02.939160588-0773463YM273.9654042-31.1174831C 9.4 4.7 4.6 4.712.410Y12.630Y11.840B 9.943 9.408 9.241   2 4.05618 15 51.996000-31 07 01.650000588-0773487..273.9666500-31.1171250B 778.0309.0 232.0 31.315.150B    14.130B         3 6.49218 15 52.190664-31 07 01.499880588-0773507..273.9674611-31.1170833B 378.0 51.0 648.0 22.020.580B    11.330B         4 7.28718 15 51.439344-31 07 09.540120588-0773446..273.9643306-31.1193167B 0.0 0.0 0.0 0.016.160B                 5 7.92218 15 51.085992-31 07 03.820080588-0773417..273.9628583-31.1177278B 92.0 3.0 80.0 44.016.660B    17.150e         %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20This%20version%20of%20the%20%0a%3cB%3eGSC-II%0ahas%20no%20proper%20motions,%20but%20the%20limits%20on%20brightness%20which%20existed%20on%0a%20%28F<18.5,%20B_j<19.5%29%20were%20removed.%0a%25The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%0a%25the%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a
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1 0.43418 15 51.66744-31 07 02.9568S9UH000066273.965281-31.1174881996.69711.56  12.4511.230 5.63 0.06
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Nobs
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sub
1 0.13618 15 51.69696-31 07 02.9388181551.6-310702273.965404-31.117483 17.66 10.5912.34012.322 9.943 9.408 9.241 3  S
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