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	0.768	10 19 53.62488	+22 06 18.2016	1050-06256409	154.973437	+22.105056			17.0	16.4	1955.279
2	3.661	10 19 53.81616	+22 06 21.1932	1050-06256431	154.974234	+22.105887			17.1	16.4	1955.279
3	5.728	10 19 53.92488	+22 06 22.6116	1050-06256435	154.974687	+22.106281			17.3	16.9	1955.279
4	7.295	10 19 54.02280	+22 06 23.4216	1050-06256443	154.975095	+22.106506			18.5	17.3	1955.279

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	APM-ID	RAJ2000 deg	DEJ2000 deg	rmag mag	l_	rClass	rStel	rDiam arcsec	rEll	bmag mag	l_	bClass [****ClosingBrace(s)Inserted****]
">

bClass

%22>bStel

bDiam
arcsecb-r
magMflag

1 2.46810 19 53.77344+22 06 19.8612EO1380-0151641154.974056+22.10551716.45   1 17.25 22.6 0.6617.17   1 14.15 24.3 0.72   228.43010 19 53.52072+22 05 50.5320EO1380-0152031154.973003+22.09737019.95  -1 -1.12 3.2 0.1322.01L 0     2.06   %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

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	2.426	10 19 53.76744	+22 06 19.9476	N20300323665	154.974031	+22.105541	1990.012	15.59	0.42	15.85	0.42	3	9.89	0.67

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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 mag
1	0.691	10 19 53.64744	+22 06 18.5004	1121-0215506	154.973531	+22.105139	307	255	1950.0	-2	-2	4	16.38	15.79		15.96	16.42
2	2.052	10 19 53.57736	+22 06 16.9308	1121-0215505	154.973239	+22.104703	412	548	1950.0	0	0	3	16.58	16.48			17.80
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%202.052&%3cFONT%20COLOR=%27#CD5B45%27>10%2019%2053.57736&%3cFONT%20COLOR=%27#CD5B45%27>%2b22%2006%2016.9308&1121-0215505&154.973239&%2b22.104703&412&548&1950.0&%20%20%20%20%200&%20%20%20%20%200&3&16.58&16.48&%20&%20&17.80%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663c4bd01bcfcf&-out.add=.&-source=I/284/out&USNO-B1.0===1121-0215507&-out.orig=o' class='full'3 2.77810 19 53.77944+22 06 20.38321121-0215507154.974081+22.1056622933431977.5 0 0516.5915.8615.8615.3816.64 4 3.49310 19 53.81952+22 06 20.84041121-0215508154.974248+22.1057895033041966.8 -32 -36316.7616.50  15.84   5 6.88310 19 53.99688+22 06 23.21281121-0215510154.974987+22.1064482781821977.1 0 0418.3317.02  16.7317.33 6 9.17610 19 54.13536+22 06 24.47281121-0215515154.975564+22.1067985233751977.6 0 02  17.74    17.65 712.81710 19 54.32208+22 06 27.06121121-0215516154.976342+22.1075175134641986.8 0 0420.71  20.6918.8518.31 826.22010 19 55.01400+22 06 01.44001121-0215517154.979225+22.1004001769991977.2 0 0219.46      17.31 928.59910 19 53.57544+22 05 50.34121120-0206394154.973231+22.0973174497291997.1 0 02    21.38  18.46 1028.87110 19 53.51736+22 05 50.09281120-0206393154.972989+22.0972481521301950.0 0 04  19.3521.4519.7718.19 1128.92910 19 51.52944+22 06 17.60041121-0215489154.964706+22.1048899999991971.1 0 02  19.3521.66     %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	0.691	10 19 53.647344	+22 06 18.50004	1121-0218173	YM	154.9735306	+22.1051389	B	-2.0	0.0	-2.0	0.0	17.670	o	17.220	Y	15.960	B	16.609	15.223	15.701
2	2.053	10 19 53.577336	+22 06 16.93008	1121-0218172	..	154.9732389	+22.1047028	B	0.0	0.0	0.0	0.0	16.580	o			16.480	e
3	2.775	10 19 53.779344	+22 06 20.37996	1121-0218174	..	154.9740806	+22.1056611	B	0.0	0.0	0.0	0.0	15.860	B			15.380	B
4	3.491	10 19 53.819328	+22 06 20.84004	1121-0218175	..	154.9742472	+22.1057889	B	-32.0	13.0	-36.0	8.0	16.760	o			15.840	B
5	6.879	10 19 53.996664	+22 06 23.20992	1121-0218177	..	154.9749861	+22.1064472	B	0.0	0.0	0.0	0.0	18.330	o			16.730	B
6	9.174	10 19 54.135336	+22 06 24.46992	1121-0218182	..	154.9755639	+22.1067972	B	0.0	0.0	0.0	0.0					17.740	e
[****ClosingBrace(s)Inserted****]
6	9.174	10 19 54.135336	+22 06 24.46992	1121-0218182	..	154.9755639	+22.1067972	B	0.0	0.0	0.0	0.0					17.740	e

%22>\Ahref='VizieR-5?-ref=VIZ663c4bd01bcfcf&-out.add=.&-source=I/297/out&NOMAD1===1121-0218183' class='full'712.81610 19 54.322008+22 06 27.060121121-0218183..154.9763417+22.1075167B 0.0 0.0 0.0 0.020.690B    18.850B         826.22010 19 55.014000+22 06 01.440001121-0218184..154.9792250+22.1004000B 0.0 0.0 0.0 0.019.460o                 928.60010 19 53.575344+22 05 50.340121120-0209354..154.9732306+22.0973167B 0.0 0.0 0.0 0.021.380B                 1028.87410 19 53.517336+22 05 50.089921120-0209353.M154.9729889+22.0972472B 0.0 0.0 0.0 0.021.450B    19.770B16.60516.52715.752   1128.93010 19 51.529344+22 06 17.600041121-0218156..154.9647056+22.1048889B 0.0 0.0 0.0 0.021.660B    19.350e         %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	2.430	10 19 53.76768	+22 06 19.9512	N6XA003665	154.974032	+22.105542	1990.012	15.59	15.85	16.93	15.87	3	9.89	0.67
2	10.503	10 19 53.57160	+22 06 29.4264	N6XA004980	154.973215	+22.108174	1990.012	20.24			18.09	3	2.27	0.62
3	28.897	10 19 53.51640	+22 05 50.0676	N6XA003644	154.972985	+22.097241	1990.012	19.52	21.92		17.95	3	2.51	0.27

%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 mag	r2mag mag	imag mag	[****ClosingBrace(s)Inserted****]
">

mag&%">\BegDIVclass='sort-down ' </A>decNo

fl

1 0.84610 19 53.64888+22 06 18.2988154.973537+22.105083 -3.2 -10.116.60915.70116.38  15.7915.9616.42 5 0 2 2.18010 19 53.74296+22 06 20.0664154.973929+22.105574 -16.0 -19.516.60915.70116.5915.8615.8615.3816.64 6 0 3 2.28710 19 53.57400+22 06 16.7004154.973225+22.104639 0.7 -14.5    16.58  16.48  17.80 3 0 4 2.36710 19 53.75856+22 06 20.0628154.973994+22.105573 -55.1 -56.216.60915.70116.76  16.5015.84   4 0 5 6.57210 19 53.97960+22 06 23.0148154.974915+22.106393 -6.4 -9.4    18.33  17.0216.7317.33 4 0 6 8.89110 19 54.09792+22 06 24.6672154.975408+22.106852 -14.8 3.2        17.74  17.65 2 0 712.32110 19 54.28728+22 06 26.8668154.976197+22.107463 -15.0 -5.1    20.7120.69  18.8518.31 4 0 826.28310 19 55.00488+22 06 01.2060154.979187+22.100335 -5.7 -41.2    19.46      17.31 2 0 928.22510 19 51.58416+22 06 16.7112154.964934+22.104642 58.6 -59.8      21.6619.35     2 0 1029.22110 19 53.52264+22 05 49.7400154.973011+22.097150 0.0 -14.216.60515.752  21.4519.3519.7718.19 5 0 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID	RAICRS deg	DEICRS deg	pmRAp mas/yr	pmDEp mas/yr	pmRAx mas/yr	pmDEx mas/yr	Fmag mag	Bjmag mag	Vmag mag	Nmag mag	Jmag mag	e_ mag	Hmag mag	e_ mag	Kmag mag	e_ mag	2Mkey	Bmag mag	Rmag mag	Fld	dT yr	fg	fs	M
1	1.842	10 19 53.72761	+22 06 19.7532	XPM 224-0303477	154.973865	+22.105487	-67.93	-60.59	-67.45	-60.29	15.588	15.853	16.929	15.871	16.609	0.143	15.223		15.701	0.203	158022337	17.3	16.9	373	42.790196	0	0	M

%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 [****ClosingBrace(s)Inserted****]
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RAJ2000

%20

%22>%5cFONT SIZE=-1degDEJ2000
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 0.84610 19 53.64887+22 06 18.2992154.973537+22.105083 0.115 0.11516.380 0.40015.960 0.40016.059 0.40015.655 0.5001977.91001977.9100 -3.2 5.1 -10.1 5.1 2 2.18010 19 53.74294+22 06 20.0660154.973929+22.105574 0.092 0.09215.860 0.40015.380 0.40015.493 0.40015.045 0.5001981.65001981.6500 -16.0 4.9 -19.5 4.9 3 2.28710 19 53.57403+22 06 16.7002154.973225+22.104639 0.133 0.13316.580 0.40016.480 0.40016.493 0.40016.334 0.5001970.89001970.8900 0.7 6.0 -14.5 6.0 4 3.00410 19 53.79164+22 06 20.5389154.974132+22.105705 0.033 0.05315.853 0.30015.588 0.30016.822 0.08115.939 0.1102005.09002005.0900 -55.1 5.6 -56.2 5.6 5 6.57210 19 53.97961+22 06 23.0152154.974915+22.106393 0.115 0.11518.330 0.40016.730 0.40016.969 0.40015.740 0.5001977.14001977.1400 -6.4 5.3 -9.4 5.3 610.00510 19 53.59652+22 06 28.9392154.973319+22.108039 0.018 0.01723.438 0.22820.235 0.30019.924 0.13717.997 0.1562005.09002005.0900 88.6 114.6 -103.8 54.0 712.32110 19 54.28728+22 06 26.8672154.976197+22.107463 0.115 0.13320.690 0.40018.850 0.40019.065 0.40017.690 0.5001985.65001985.6500 -15.0 6.3 -5.1 6.4 829.43010 19 53.54433+22 05 49.5193154.973101+22.097089 0.009 0.00821.924 0.30019.516 0.30019.312 0.08917.608 0.1172005.09002005.0900 0.0 6.2 -14.2 6.2 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	URAT1	RAICRS deg	DEICRS deg	Epoch yr	f.mag mag	e_ mag	pmRA mas/yr	pmDE mas/yr	Jmag mag	Hmag mag	Kmag mag	Bmag mag	Vmag mag	gmag mag	rmag mag	imag mag
1	3.182	10 19 53.745153	+22 06 19.94110	561-174903	154.9742064	+22.1056850	2013.122	17.205	0.044	68.2	40.0	16.609	15.223	15.701
2	29.844	10 19 53.542597	+22 05 49.44130	561-174902	154.9731350	+22.0969728	2014.190	18.946	0.015	9.6	-23.9	16.605	16.528	15.752

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAICRS deg	e_ mas	DEICRS deg	e_ mas	ID	Type	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	[****ClosingBrace(s)Inserted****]
">

%28...%29&%">\BegDIVclass='sort-down ' </A>decNobs

Dt
yr

Rmag
mag

Bmag
mag

Nmag
mag

Vmag
mag

Jmag
mag

Hmag
mag

Kmag
mag

1 2.45110 19 53.770351+22 06 19.91924154.9740431 53.00+22.1055331 48.0058126+00036654 -10.1 3.4 -6.2 3.1 1146.832 15.588 15.853 15.871 16.929 16.609 15.223 15.701 2 9.54810 19 53.616343+22 06 28.48386154.9734014 407.00+22.1079122 173.0058126+00049803 52.4 70.4 -89.8 29.9 310.000 20.235   18.085         329.09910 19 53.558321+22 05 49.84589154.9731597 48.00+22.0971794 63.0058126+00036440 3.0 3.1 -21.6 4.1 1046.832 19.516 21.924 17.949   16.605 16.528 15.752 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	e_ mas	DE_ICRS deg	e_ mas	Source	Plx mas	pmRA mas/yr	pmDE mas/yr	RADEcor	Dup	<FG> e-/s	e_ e-/s	<Gmag> mag	Var
1	9.427	10 19 53.638810114	+22 06 28.35388163	154.9734950421	7.058	+22.1078760782	12.541	722081549755210880				-0.965	0	1.7278e+02	2.6960e+00	19.931	NOT_AVAILABLE
2	29.819	10 19 53.551915802	+22 05 49.12764534	154.9731329825	7.901	+22.0969799015	14.098	722081446675866624				-0.974	0	3.2143e+02	5.7096e+00	19.257	NOT_AVAILABLE

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