VizieR

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VizieR

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The 5 columns in color are computed by VizieR, and are not part of the original data.
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Name
RAB1950
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DEB1950
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bmag
mag
Nfields
Flag1
Flag2
Flag3
_RA.icrs
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_DE.icrs
"d:m:s"
1 4.88703 01 32.39039-15 01 02.6456-15.016002 59 11.426-15 12 50.3216.16100003 01 32.390-15 01 02.65
%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%25
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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USNO-A2.0
RAJ2000
deg
DEJ2000
deg
ACTflag
Mflag
Bmag
mag
Rmag
mag
Epoch
yr
1 4.80303 01 32.40216-15 01 02.54280675-01034112045.385009-15.017373    14.113.11953.929
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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%205.19&%3cFONT%20COLOR=%27#CD5B45%27>03%2001%2032.4048&%3cFONT%20COLOR=%27#CD5B45%27>-15%2001%2002.928&0586501142&045.38502&-15.01748&%200.3&13.75&%200.20&%200&0&00OF&1982.706%3cBR%3e%0a %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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GSC
RAJ2000
deg
DEJ2000
deg
PosErr
arcsec
Pmag
mag
e_
mag
n_
Class
Epoch
yr
1 5.0103 01 32.4048-15 01 02.7480586501142045.38502-15.01743 0.313.77 0.23 001982.706
%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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GSC2.2
RA(ICRS)
deg
DE(ICRS)
deg
Epoch
yr
Rmag
mag
e_
mag
Bjmag
mag
e_
mag
Class
a
pix
e
1 4.70703 01 32.38584-15 01 02.4708S0313303272045.384941-15.0173531995.89612.59 0.2813.47 0.170 9.39 0.18
%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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&%25%0aUSNO-B1.0

%0a
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%0amas
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&%25%0ae_DEJ2000
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%0a
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&%25%0aB1mag
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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%204.668&%3cFONT%20COLOR=%27#CD5B45%27>03%2001%2032.38680&%3cFONT%20COLOR=%27#CD5B45%27>-15%2001%2002.4312&0749-0028472&045.384945&-15.017342&%2050&120&1977.6&%20%20%20-10&%20%20%20%20%202&5&13.43&13.08&12.92&12.11&12.82%3cBR%3e%0a%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%209.960&%3cFONT%20COLOR=%27#CD5B45%27>03%2001%2031.75800&%3cFONT%20COLOR=%27#CD5B45%27>-15%2001%2002.6112&0749-0028469&045.382325&-15.017392&999&999&1977.5&%20%20%20%20%200&%20%20%20%20%200&3&19.78&%20&21.20&18.50&%20%3cBR%3e%0a%3cEM%3e3&%3cFONT%20COLOR=%27#CD5B45%27>10.872&%3cFONT%20COLOR=%27#CD5B45%27>03%2001%2031.64688&%3cFONT%20COLOR=%27#CD5B45%27>-15%2001%2001.2000&0749-0028467&045.381862&-15.017000&%2057&%2019&1968.3&%20%20%20%20%200&%20%20%20%20%200&2&%20&19.25&21.48&%20&%20%3cBR%3e%0a%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>10.978&%3cFONT%20COLOR=%27#CD5B45%27>03%2001%2031.69488&%3cFONT%20COLOR=%27#CD5B45%27>-15%2001%2003.0612&0749-0028468&045.382062&-15.017517&241&%20%200&1974.9&%20%20%20%20%200&%20%20%20%20%200&2&19.04&%20&%20&18.98&%20%3cBR%3e%0a%3cEM%3e5&%3cFONT%20COLOR=%27#CD5B45%27>18.025&%3cFONT%20COLOR=%27#CD5B45%27>03%2001%2031.13544&%3cFONT%20COLOR=%27#CD5B45%27>-15%2000%2054.5328&0749-0028463&045.379731&-15.015148&146&104&1983.5&%20%20%20%2014&%20%20%20%2016&4&%20&18.59&21.68&18.51&17.82%3cBR%3e%0a %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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NOMAD1
YM
RAJ2000
deg
DEJ2000
deg
r
pmRA
mas/yr
e_
(...)
pmDE
mas/yr
e_
(...)
Bmag
mag
r_
Vmag
mag
r_
Rmag
mag
r_
Jmag
mag
Hmag
mag
Kmag
mag
R
1 4.66703 01 32.386656-15 01 02.430120749-0028666YM045.3849444-15.0173417B -10.0 1.0 2.0 3.015.970Y15.600Y12.110B15.34914.71214.316  
2 9.96003 01 31.758000-15 01 02.610120749-0028663..045.3823250-15.0173917B 0.0 0.0 0.0 0.021.200B    18.500B        
310.87503 01 31.646664-15 01 01.200000749-0028661..045.3818611-15.0170000B 0.0 0.0 0.0 0.021.480B    19.250e        
410.98003 01 31.694664-15 01 03.060120749-0028662..045.3820611-15.0175167B 0.0 0.0 0.0 0.019.040o    18.980B        
518.02603 01 31.135344-15 00 54.529920749-0028657.M045.3797306-15.0151472B 14.0 5.0 16.0 4.021.680B    18.510B16.46015.90015.227  
%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