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.

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	USNO-A2.0	RAJ2000 deg	DEJ2000 deg	ACTflag	Mflag	Bmag mag	Rmag mag	Epoch yr
1	2.370	13 43 23.04480	-19 56 37.6224	0675-12798100	205.846020	-19.943784			13.2	13.5	1981.196
2	12.384	13 43 22.76616	-19 56 49.5420	0675-12798052	205.844859	-19.947095			17.8	17.5	1981.196
3	15.188	13 43 22.20888	-19 56 44.8800	0675-12797940	205.842537	-19.945800			19.2	18.0	1981.196
4	18.469	13 43 21.99144	-19 56 31.3908	0675-12797898	205.841631	-19.942053			19.4	18.1	1981.196

%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

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Plate	Epoch yr
1	2.33	13 43 23.0496	-19 56 37.572	0613000333	205.84604	-19.94377	0.3	15.13	0.21	0	3	0178	1977.153

%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%22>

>	\BegDIVclass='sort-down ' </A>
dec Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Epoch yr
1	2.44	13 43 23.0472	-19 56 37.428	0613000333	205.84603	-19.94373	0.3	15.13	0.22	0	3	1977.153

Note: The construction of the GSC-II is still in progress: this version has no proper motions, and the magnitude limits are 18.5 in F (red) and 19.5 in J (blue). The data are copyrighted, check the data use Policy.

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.2	RA(ICRS) deg	DE(ICRS) deg	Epoch yr	Rmag mag	e_ mag	Bjmag mag	e_ mag	Class	a pix	e
1	2.848	13 43 23.02560	-19 56 37.1436	S202202131	205.845940	-19.943651	1993.290	14.77	0.37	13.95	0.27	3	8.95	0.29
2	12.227	13 43 22.76160	-19 56 49.3260	S20220215473	205.844840	-19.947035	1993.290	17.34	0.37	18.45	0.28	3	4.10	0.27
3	18.640	13 43 21.98232	-19 56 31.2576	S20220215462	205.841593	-19.942016	1993.290	18.49	0.38			3	3.70	0.37

%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

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	USNO-B1.0	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 mas	e_DEJ2000 mas	Epoch yr	pmRA mas/yr	pmDE mas/yr	Ndet	B1mag mag	R1mag mag	B2mag mag	R2mag mag	Imag [****ClosingBrace(s)Inserted****]
">

Imag

%22>%5cFONT SIZE=-1mag 1 1.34013 43 23.10672-19 56 38.18040700-0276108205.846278-19.9439391737541973.7 0 0218.46      16.45 2 2.72613 43 23.01744-19 56 37.60080700-0276107205.845906-19.943778188 721974.4 0 0517.0715.9412.6213.9614.57 3 8.98413 43 22.96608-19 56 30.33240700-0276106205.845692-19.9417599999991973.7 0 0220.54    19.02   412.33313 43 22.75944-19 56 49.43040700-0276104205.844831-19.9470641341761974.4 0 0517.8017.4318.2617.3217.24 515.27213 43 22.21008-19 56 45.12120700-0276102205.842542-19.945867 671171974.4 0 0519.9518.6819.9818.9218.56 615.49413 43 22.61088-19 56 51.86040700-0276103205.844212-19.9477399999991973.7 -68 -276418.3418.61  19.2418.06 718.38313 43 21.99144-19 56 31.61040700-0276100205.841631-19.9421142611311979.4 0 04  18.6320.0318.4518.02 %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

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	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	1.341	13 43 23.106672	-19 56 38.18004	0700-0281396	..	205.8462778	-19.9439389	B	0.0	0.0	0.0	0.0	18.460	o
2	2.728	13 43 23.017344	-19 56 37.60008	0700-0281395	Y.	205.8459056	-19.9437778	B	0.0	0.0	0.0	0.0	17.610	Y			13.960	B
3	8.987	13 43 22.966008	-19 56 30.32988	0700-0281394	..	205.8456917	-19.9417583	B	0.0	0.0	0.0	0.0	20.540	o			19.020	B
4	12.333	13 43 22.759344	-19 56 49.43004	0700-0281392	Y.	205.8448306	-19.9470639	B	0.0	0.0	0.0	0.0	18.260	B	17.130	Y	17.320	B
5	15.273	13 43 22.210008	-19 56 45.12012	0700-0281390	..	205.8425417	-19.9458667	B	0.0	0.0	0.0	0.0	19.980	B			18.920	B
6	15.496	13 43 22.610664	-19 56 51.86004	0700-0281391	..	205.8442111	-19.9477389	B	-68.0	53.0	-276.0	36.0	18.340	o			19.240	B
[****ClosingBrace(s)Inserted****]
6	15.496	13 43 22.610664	-19 56 51.86004	0700-0281391	..	205.8442111	-19.9477389	B	-68.0	53.0	-276.0	36.0	18.340	o			19.240	B

%22>\Ahref='VizieR-5?-ref=VIZ663fcdbf3c02e8&-out.add=.&-source=I/297/out&NOMAD1===0700-0281388' class='full'718.38513 43 21.991344-19 56 31.610040700-0281388Y.205.8416306-19.9421139B 0.0 0.0 0.0 0.020.030B17.850Y18.450B         %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

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3	RAJ2000 deg	DEJ2000 deg	Epoch yr	Fmag mag	jmag mag	Vmag mag	Nmag mag	Class	a pix	e
1	2.850	13 43 23.02560	-19 56 37.1400	S6TL000031	205.845940	-19.943650	1993.290	14.77	13.95		15.18	3	8.95	0.29
2	12.222	13 43 22.76184	-19 56 49.3224	S6TL005473	205.844841	-19.947034	1993.290	17.34	18.45		16.80	3	4.10	0.27
3	14.976	13 43 22.21896	-19 56 44.6748	S6TL009917	205.842579	-19.945743	1977.155		20.21		18.83	3	1.31	0.03
4	18.440	13 43 21.99696	-19 56 31.2864	S6TL005474	205.841654	-19.942024	1993.290	18.58	20.39			0	3.16	0.28
5	18.639	13 43 21.98256	-19 56 31.2540	S6TL005462	205.841594	-19.942015	1993.290	18.49			17.94	3	3.70	0.37

%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	pmRA mas/yr	pmDE mas/yr	Jmag mag	Kmag mag	b1mag mag	b2mag mag	r1mag [****ClosingBrace(s)Inserted****]
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%27%29%22%20onMouseOut=%22laz%28%29%22>r1mag

%20

%22>%5cFONT SIZE=-1magr2mag
mag

imag
mag

No

fl

1 2.25213 43 23.08320-19 56 37.0968205.846180-19.943638 -18.9 16.6    18.46      16.45 2 0 2 2.86813 43 23.01696-19 56 37.3020205.845904-19.943695 -4.5 0.0    17.0712.6215.9413.9614.57 5 0 312.17213 43 22.74216-19 56 49.0992205.844759-19.946972 -15.3 -2.5    17.8018.2617.4317.3217.24 5 0 412.30013 43 22.72032-19 56 28.3920205.844668-19.941220 -87.4 35.2    20.54    19.02   2 0 515.28813 43 22.19784-19 56 44.7720205.842491-19.945770 -15.2 0.4    19.9519.9818.6818.9218.56 5 0 615.36513 43 22.60704-19 56 51.6732205.844196-19.947687 -64.8 -289.6    18.34  18.6119.2418.06 4 1 718.62413 43 21.98304-19 56 31.2756205.841596-19.942021 -7.4 0.9      20.0318.6318.4518.02 4 0 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 (...)	e_DEJ2000 arcsec	magBJ mag	e_ mag	magRF mag	e_ mag	magG mag	e_ mag	magGrvs mag	e_ mag	alphaEpoch yr	deltaEpoch yr	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)
1	2.869	13 43 23.01693	-19 56 37.3018	205.845904	-19.943695	0.103	0.103	13.953	0.300	14.770	0.300	14.510	0.400	15.064	0.500	1974.4400	1974.4400	-4.5	5.9	0.0	5.9
2	12.172	13 43 22.74216	-19 56 49.0988	205.844759	-19.946972	0.103	0.103	18.445	0.300	17.341	0.300	17.564	0.400	16.664	0.500	1974.4400	1974.4400	-15.3	5.9	-2.5	5.9
3	12.299	13 43 22.72036	-19 56 28.3922	205.844668	-19.941220	0.163	0.163	20.540	0.400	19.020	0.400	19.262	0.400	18.083	0.500	1973.7700	1973.7700	-87.4	8.3	35.2	8.3
4	15.287	13 43 22.19788	-19 56 44.7721	205.842491	-19.945770	0.103	0.103	20.210	0.300	18.920	0.400	19.158	0.400	18.131	0.500	1974.4400	1974.4400	-15.2	5.9	0.4	5.9
5	15.365	13 43 22.60706	-19 56 51.6729	205.844196	-19.947687	0.115	0.115	18.340	0.400	19.240	0.400	18.956	0.400	19.575	0.500	1973.7700	1973.7700	-64.8	5.9	-289.6	5.9
6	18.499	13 43 21.99394	-19 56 31.2366	205.841641	-19.942010	0.400	0.400	20.388	0.300	18.584	0.300	18.805	0.400	17.451	0.500	1993.2900	1993.2900	-5.9	0.3	8.1	3.0
7	18.623	13 43 21.98307	-19 56 31.2761	205.841596	-19.942021	0.115	0.115	20.030	0.400	18.491	0.300	18.731	0.400	17.542	0.500	1979.4900	1979.4900	-7.4	7.2	0.9	7.2

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a