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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ACTflag
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yr
1 8.53102 22 40.82544+28 15 25.17121125-00760480035.670106+28.256992  *15.9 8.71954.758
%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 9.4602 22 40.8960+28 15 24.6960177800226035.67040+28.25686 0.213.03 0.40 1301H71982.795
%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>%209.14&%3cFONT%20COLOR=%27#CD5B45%27>02%2022%2040.8720&%3cFONT%20COLOR=%27#CD5B45%27>%2b28%2015%2024.948&0177800226&035.67030&%2b28.25693&%200.2&13.05&%200.40&%201&3&1982.795%3cBR%3e%0a %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cB%3e%3cFONT%20COLOR=%27#CD5B45%27>%20The%20current%20version%20includes%20only%20the%20North%20%28POSS-I%20plates%29%3cP%3e%0a
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1 8.76202 22 40.82952+28 15 26.6724EO1248-0357564035.670123+28.257409 5.18   0 -3.48 85.5 0.27 9.32   1 9.52 79.2 4.14  
%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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Imag
mag
1 3.33902 22 40.32336+28 15 22.15081182-0040673035.668014+28.2561539999991991.2 0 02     9.00  16.04 2 7.45502 22 40.72344+28 15 26.91001182-0040685035.669681+28.2574759999991991.1 -172 -4643    13.45 8.8714.76 3 7.71802 22 40.74936+28 15 23.17321182-0040687035.669789+28.256437458 961979.8 -50 -763   9.03   8.32 8.43 4 8.58102 22 40.82952+28 15 24.82201182-0040692035.670123+28.2568952461311974.4 0 0412.50 8.67 8.83   8.39 5 9.06302 22 40.80072+28 15 21.04201182-0040691035.670003+28.2558455899991993.4 0 03     8.97 8.04 6.95 6 9.48902 22 40.79280+28 15 19.95121182-0040690035.669970+28.2555429999991994.6 0 02     9.11   7.14 %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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Bmag
mag
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mag
Hmag
mag
Kmag
mag
R
1 3.33902 22 40.323336+28 15 22.150081182-0040837..035.6680139+28.2561528B 0.0 0.0 0.0 0.0 9.000B                
2 7.45402 22 40.723344+28 15 26.910001182-0040849..035.6696806+28.2574750B -172.0340.0 -464.0145.313.450B     8.870B        
3 7.71802 22 40.749336+28 15 23.169961182-0040851..035.6697889+28.2564361B -50.0 17.0 -76.0 3.0         8.320B        
4 8.57902 22 40.829328+28 15 24.819841182-0040856YM035.6701222+28.2568944B 0.0 0.0 0.0 0.018.160Y     8.670e13.85513.10312.939  
5 9.06302 22 40.800672+28 15 21.039841182-0040855..035.6700028+28.2558444B 0.0 0.0 0.0 0.0 8.970B     8.040B        
6 9.48802 22 40.792656+28 15 19.950121182-0040854..035.6699694+28.2555417B 0.0 0.0 0.0 0.0 9.110B                
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pmRA
mas/yr
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mas/yr
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b1mag
mag
b2mag
mag
r1mag
mag
r2mag
mag
imag
mag
No
fl
1 7.61702 22 40.73976+28 15 23.0760035.669749+28.256410 -53.3 -77.3               3 0
2 9.42702 22 40.89360+28 15 24.8724035.670390+28.256909 22.5 -1.413.85512.94012.50         5 1
%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%0a%25%25%25%20Introduction%20to%20UCAC4%20VizieR%20page%0a%3cEM%3e%25Note:%20%0a%20%20see%20the%20UCAC4%20document,%20and%20the%0a%20%20the%20fix%20for%20high%20proper%20motion%20stars.%0a%20%20The%20UCAC%20home%20page%20is%20available%20at%0a%20%20http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/ucac.%0a%20%20%3cBR%3ePlease%20%3cB%3eacknowledge%20the%20usage%0a%20%20of%20the%20UCAC4%0a%0a%25%3cP%3e%0a
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of
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1 9.67202 22 40.911744+28 15 24.59124592-005832035.6704656+28.2568309 27416.3820 0 12.9 -9.413.85512.94016.14215.10214.70214.202000000010
%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a