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	11.177	19 29 53.50944	+40 20 09.4416	1275-11527322	292.472956	+40.335956			19.5	18.8	1951.520
2	18.715	19 29 54.67416	+40 19 44.3532	1275-11528045	292.477809	+40.328987			17.7	17.0	1951.520
3	18.874	19 29 51.93216	+40 19 57.8928	1275-11526351	292.466384	+40.332748			19.2	18.2	1951.520
4	24.033	19 29 52.27152	+40 19 39.5112	1275-11526565	292.467798	+40.327642			15.7	14.4	1951.520

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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	19.162	19 29 54.68112	+40 19 43.8276	N030331223978	292.477838	+40.328841	1991.683	17.11	0.36	18.38	0.35	3	3.14	0.24
2	24.254	19 29 52.27248	+40 19 39.2196	N030331223940	292.467802	+40.327561	1991.683	14.84	0.36	16.31	0.35	0	3.34	0.02
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>24.254&%3cFONT%20COLOR=%27#CD5B45%27>19%2029%2052.27248&%3cFONT%20COLOR=%27#CD5B45%27>%2b40%2019%2039.2196&N030331223940&292.467802&%2b40.327561&1991.683&14.84&%200.36&16.31&%200.35&0&%20%203.34&%200.02%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66400e833c35cf&-out.add=.&-source=I/271/out&GSC2.2===N030331224036' class='full'329.27919 29 51.17976+40 19 48.1728N030331224036292.463249+40.3300481991.68314.60 0.3616.11 0.350 3.42 0.02 %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 mag
1	10.572	19 29 53.78952	+40 19 47.9928	1303-0332953	292.474123	+40.329998	83	115	1990.1	0	0	2			20.22	18.85
2	10.931	19 29 53.47752	+40 20 09.1608	1303-0332950	292.472823	+40.335878	110	160	1975.3	0	0	5	20.32	18.90	20.03	18.67	18.41
3	18.562	19 29 54.65688	+40 19 44.3820	1303-0332965	292.477737	+40.328995	71	61	1975.3	0	0	5	18.49	17.36	18.47	16.90	17.33
4	19.103	19 29 51.91200	+40 19 57.9432	1303-0332928	292.466300	+40.332762	130	72	1970.8	0	0	4	20.00	18.42	20.01	18.61
5	23.502	19 29 51.54552	+40 20 01.4424	1303-0332922	292.464773	+40.333734	194	999	1977.2	-66	-456	3		19.32	20.24	18.77
6	24.158	19 29 52.25400	+40 19 39.5112	1303-0332933	292.467725	+40.327642	57	42	1975.3	0	0	5	16.34	14.94	16.71	14.65	14.22
7	29.002	19 29 51.20208	+40 19 48.2808	1303-0332920	292.463342	+40.330078	72	91	1975.3	46	-32	5	16.13	14.74	16.62	14.43	13.86

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	2UCAC	RAJ2000 deg	e_ mas	DEJ2000 [****ClosingBrace(s)Inserted****]
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DEJ2000

%22>%5cFONT SIZE=-1dege_
masUCmag
magNo

Nc

pmRA
mas/yrpmDE
mas/yr2Mkey

Jmag
magKmag
mag 124.28819 29 52.258248+40 19 39.3052845854689292.4677427 15+40.3275848 5314.87 3 2 -11.9 -12.6 26828042413.31112.689 %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	10.574	19 29 53.789328	+40 19 47.98992	1303-0337664	..	292.4741222	+40.3299972	B	0.0	0.0	0.0	0.0	20.220	B			18.850	B
2	10.930	19 29 53.477328	+40 20 09.16008	1303-0337660	..	292.4728222	+40.3358778	B	0.0	0.0	0.0	0.0	20.030	B			18.670	B
3	18.562	19 29 54.656664	+40 19 44.37984	1303-0337676	..	292.4777361	+40.3289944	B	0.0	0.0	0.0	0.0	18.470	B			16.900	B
4	19.103	19 29 51.912000	+40 19 57.93996	1303-0337639	..	292.4663000	+40.3327611	B	0.0	0.0	0.0	0.0	20.010	B			18.610	B
5	21.829	19 29 54.981336	+40 20 13.14996	1303-0337682	YM	292.4790889	+40.3369861	Y	499.9	9.0	163.4	9.0			17.970	Y			16.862	16.306	15.752
6	23.504	19 29 51.545328	+40 20 01.43988	1303-0337632	..	292.4647722	+40.3337333	B	-66.0	6.0	-456.0	35.0	20.240	B			18.770	B
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6	23.504	19 29 51.545328	+40 20 01.43988	1303-0337632	..	292.4647722	+40.3337333	B	-66.0	6.0	-456.0	35.0	20.240	B			18.770	B

%22>\Ahref='VizieR-5?-ref=VIZ66400e833c35cf&-out.add=.&-source=I/297/out&NOMAD1===1303-0337644' class='full'724.28819 29 52.258272+40 19 39.304921303-0337644YM292.4677428+40.3275847C -11.8 5.8 -12.6 6.115.590Y14.680Y14.650B13.31112.81612.689   829.00319 29 51.202008+40 19 48.280081303-0337629YM292.4633417+40.3300778B 46.0 2.0 -32.0 2.015.480Y14.800Y14.430B13.06612.50512.400   %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-30/%2b50deg%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC14	f_	RAICRS deg	DEICRS deg	r'mag mag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	19.271	19 29 54.64848	+40 19 43.3704	192954.6+401943		292.477702	+40.328714	17.721	1
2	24.351	19 29 52.25688	+40 19 39.2376	192952.2+401939		292.467737	+40.327566	14.867	2	13.311	12.816	12.689
3	28.991	19 29 51.21480	+40 19 47.9244	192951.2+401947		292.463395	+40.329979	14.701	2	13.066	12.505	12.400

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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	10.630	19 29 53.48328	+40 20 08.8656	N2K6024269	292.472847	+40.335796	1991.683	18.72	20.23	18.86	18.02	3	1.90	0.15
2	10.946	19 29 53.78016	+40 19 47.5860	N2K6093618	292.474084	+40.329885	1991.683	19.58	21.19			3	1.52	0.34
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>10.946&%3cFONT%20COLOR=%27#CD5B45%27>19%2029%2053.78016&%3cFONT%20COLOR=%27#CD5B45%27>%2b40%2019%2047.5860&N2K6093618&292.474084&%2b40.329885&1991.683&19.58&21.19&%20&%20&3&%20%201.52&%200.34%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66400e833c35cf&-out.add=.&-source=I/305/out&GSC2.3===N2K6024129&-out.orig=o' class='full'318.94719 29 51.92592+40 19 57.8280N2K6024129292.466358+40.3327301991.68318.8219.8918.8618.193 1.87 0.23 419.16119 29 54.68136+40 19 43.8312N2K6023978292.477839+40.3288421991.68317.1118.3817.9417.133 3.14 0.24 521.15119 29 54.92040+40 20 12.9012N2K6093699292.478835+40.3369171991.68319.60    18.193 1.44 0.11 623.75419 29 51.60648+40 20 05.6292N2K6024223292.465027+40.3348971991.68318.9721.10    3 1.73 0.01 724.25319 29 52.27272+40 19 39.2196N2K6023940292.467803+40.3275611991.68314.8416.3114.9514.230 3.34 0.02 824.57219 29 52.74936+40 20 20.9472N2K6109310292.469789+40.3391521988.523  22.07    3 1.53 0.35 924.74419 29 53.45328+40 20 22.9956N2K6109311292.472722+40.3397211988.523  22.27    3 1.43 0.37 1029.27519 29 51.18000+40 19 48.1764N2K6024036292.463250+40.3300491991.68314.6016.1114.9513.860 3.42 0.02 %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	No	fl
1	10.570	19 29 53.47176	+40 20 08.7900	292.472799	+40.335775	-2.1	-7.7			20.32	20.03	18.90	18.67	18.41	5	0
2	18.742	19 29 54.65520	+40 19 44.1264	292.477730	+40.328924	-1.3	-0.9			18.49	18.47	17.36	16.90	17.33	5	0
3	19.081	19 29 51.91440	+40 19 57.7236	292.466310	+40.332701	1.5	0.6			20.00	20.01	18.42	18.61		4	0
4	23.571	19 29 51.54120	+40 20 01.5864	292.464755	+40.333774	-68.8	-448.6				20.24	19.32	18.77		3	0
5	24.358	19 29 52.25592	+40 19 39.2376	292.467733	+40.327566	-1.2	-0.9	13.311	12.689	16.34	16.71	14.94	14.65	14.22	6	0
6	29.052	19 29 51.20664	+40 19 48.0000	292.463361	+40.330000	44.6	-34.1	13.066	12.400	16.13	16.62	14.74	14.43	13.86	6	0

%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID [****ClosingBrace(s)Inserted****]
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ID

%20

%22>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_
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Hmag
mag

e_
mag

Kmag
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e_
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2Mkey

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Fld

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yr

fg

fs

M

124.34119 29 52.25784+40 19 39.2411XPM 260-0493169292.467741+40.327567 -1.44 -3.22 -0.99 -3.0014.83716.30614.95214.22713.311 0.02312.816 0.02512.689 0.026 26828042415.714.4 23246.89418000M 229.00819 29 51.21002+40 19 48.0216XPM 260-0493141292.463375+40.330006 45.75 -35.02 46.20 -34.8014.60016.11414.95313.86113.066 0.02312.505 0.02312.400 0.025 26828041415.614.1 23246.89418000M %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

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	UCAC4	RAJ2000 deg	DEJ2000 deg	ePos mas	f.mag mag	of	db	pmRA mas/yr	pmDE mas/yr	Jmag mag	Kmag mag	Bmag mag	Vmag mag	rmag mag	imag mag	H	A	b	h	Z	B	L	N	S
1	24.348	19 29 52.257480	+40 19 39.23616	652-072034	292.4677395	+40.3275656	39	14.942	0	0	-7.8	-5.9	13.311	12.689					0	0	0	0	0	0	0	1	0
2	29.059	19 29 51.207744	+40 19 47.94708	652-072026	292.4633656	+40.3299853	34	14.794	0	0	40.2	-41.7	13.066	12.400					0	0	0	0	0	0	0	1	0

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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_
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pmDE
mas/yr

e_
(...)

110.57019 29 53.47172+40 20 08.7901292.472799+40.335775 0.103 0.10320.228 0.30018.721 0.30018.963 0.40017.793 0.5001975.33001975.3300 -2.1 5.3 -7.7 5.3 210.94719 29 53.78008+40 19 47.5847292.474084+40.329885 0.400 0.40021.187 0.30019.584 0.30019.822 0.40018.592 0.5001991.68001991.6800 0.0 0.0 0.0 0.0 318.74219 29 54.65521+40 19 44.1262292.477730+40.328924 0.103 0.10318.384 0.30017.106 0.30017.343 0.40016.324 0.5001975.33001975.3300 -1.3 5.3 -0.9 5.3 419.08119 29 51.91441+40 19 57.7239292.466310+40.332701 0.115 0.11519.888 0.30018.820 0.30019.039 0.40018.164 0.5001970.81001970.8100 1.5 6.0 0.6 6.0 521.14719 29 54.92031+40 20 12.8962292.478835+40.336916 0.400 0.40022.769 0.50019.603 0.30019.207 0.40017.228 0.5001991.68001991.6800 0.0 0.0 0.0 0.0 623.57019 29 51.54121+40 20 01.5859292.464755+40.333774 0.133 0.13321.104 0.30018.970 0.30019.126 0.40017.585 0.5001977.24001977.2400 -68.8 7.3 -448.6 7.3 724.34819 29 52.25744+40 19 39.2360292.467739+40.327566 0.026 0.02616.306 0.30014.837 0.30015.079 0.40013.934 0.5001983.89001983.8900 -7.8 5.0 -5.9 4.9 829.05919 29 51.20773+40 19 47.9469292.463366+40.329985 0.023 0.02216.114 0.30014.600 0.30014.842 0.40013.667 0.5001983.89001983.8900 40.2 5.0 -41.7 4.9 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-40/%2b50deg%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC15	RA_ICRS deg	DE_ICRS deg	r'mag mag	pflag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	19.271	19 29 54.64846	+40 19 43.3704	192954.6+401943	292.477702	+40.328714	17.721		1
2	24.351	19 29 52.25687	+40 19 39.2377	192952.2+401939	292.467737	+40.327566	14.867		2	13.311	12.816	12.689
3	28.991	19 29 51.21483	+40 19 47.9242	192951.2+401947	292.463395	+40.329979	14.701		2	13.066	12.505	12.400

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