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	10.407	21 18 17.89872	+27 29 21.5016	1125-18180031	319.574578	+27.489306			19.3	18.3	1951.530
2	10.808	21 18 18.64344	+27 29 04.9524	1125-18180343	319.577681	+27.484709			19.2	17.8	1951.530
3	16.751	21 18 19.62600	+27 29 07.0512	1125-18180798	319.581775	+27.485292			19.7	18.5	1951.530
4	24.879	21 18 16.79880	+27 29 06.8712	1125-18179541	319.569995	+27.485242			19.0	17.8	1951.530
5	29.526	21 18 19.15488	+27 29 44.0808	1125-18180586	319.579812	+27.495578			18.5	18.2	1951.530

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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	9.890	21 18 17.91528	+27 29 20.8896	N033023322588	319.574647	+27.489136	1991.688	18.14	0.42			3	2.54	0.08
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%209.890&%3cFONT%20COLOR=%27#CD5B45%27>21%2018%2017.91528&%3cFONT%20COLOR=%27#CD5B45%27>%2b27%2029%2020.8896&N033023322588&319.574647&%2b27.489136&1991.688&18.14&%200.42&%20&%20&3&%20%202.54&%200.08%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6638a1391f9384&-out.add=.&-source=I/271/out&GSC2.2===N033023322370' class='full'211.39121 18 18.63600+27 29 04.3548N033023322370319.577650+27.4845431991.68817.82 0.42    3 3.00 0.17 324.96421 18 16.80216+27 29 06.5184N033023322401319.570009+27.4851441991.68817.41 0.4219.14 0.423 2.96 0.13 429.00421 18 19.16160+27 29 43.5120N033023322879319.579840+27.4954201991.68817.70 0.4218.88 0.423 2.76 0.06 %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	10.254	21 18 17.88552	+27 29 20.9400	1174-0664059	319.574523	+27.489150	101	61	1977.2	-4	-8	5	20.25	18.22	20.22	18.07	17.48
2	10.997	21 18 18.62280	+27 29 04.7328	1174-0664070	319.577595	+27.484648	185	66	1977.2	0	0	5	20.22	18.24	19.81	17.84	17.50
3	16.570	21 18 19.59744	+27 29 06.7812	1174-0664081	319.581656	+27.485217	208	117	1978.4	0	0	5	20.83	19.04	21.34	19.16	17.70
4	22.280	21 18 17.46552	+27 29 32.6904	1174-0664054	319.572773	+27.492414	283	144	1971.6	0	0	2	20.78			20.09
5	22.621	21 18 16.91136	+27 29 21.8400	1174-0664047	319.570464	+27.489400	35	242	1978.8	-8	16	3	20.98		20.91	20.19
6	25.147	21 18 16.78152	+27 29 06.7200	1174-0664044	319.569923	+27.485200	64	51	1977.2	0	0	5	19.92	17.29	19.31	17.30	16.84
7	29.009	21 18 19.13952	+27 29 43.6020	1174-0664074	319.579748	+27.495445	57	161	1977.2	-6	-6	5	19.11	17.53	18.67	17.51	17.40

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	NOMAD1	YM	RAJ2000 deg	DEJ2000 deg	[****ClosingBrace(s)Inserted****]
">

deg&%">\BegDIVclass='sort-down ' </A>stringr

pmRA
mas/yr

e_
(...)pmDE
mas/yre_
(...)Bmag
magr_

Vmag
magr_

Rmag
magr_

Jmag
magHmag
magKmag
magR

110.25621 18 17.885328+27 29 20.940001174-0685347YM319.5745222+27.4891500B -4.0 3.0 -8.0 2.018.350Y    18.070B16.39916.00715.596   211.00021 18 18.622656+27 29 04.729921174-0685358YM319.5775944+27.4846472B 0.0 0.0 0.0 0.018.350Y17.750Y17.840B16.37015.84616.021   316.57021 18 19.597344+27 29 06.780121174-0685369YM319.5816556+27.4852167B 0.0 0.0 0.0 0.017.960Y17.840Y19.160B16.16415.90315.182   422.28121 18 17.465328+27 29 32.690041174-0685342..319.5727722+27.4924139B 0.0 0.0 0.0 0.020.780o    20.090B         522.62121 18 16.911336+27 29 21.840001174-0685335..319.5704639+27.4894000B -8.0 1.0 16.0 8.020.910B    20.190B         625.15021 18 16.781328+27 29 06.720001174-0685332YM319.5699222+27.4852000B 0.0 0.0 0.0 0.018.210Y17.500Y17.300B15.87815.32715.185   729.00621 18 19.139328+27 29 43.599841174-0685362YM319.5797472+27.4954444B -6.0 1.0 -6.0 5.018.090Y17.850Y17.510B16.46616.73017.169   %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	24.748	21 18 16.81368	+27 29 06.7200	211816.8+272906		319.570057	+27.485200	17.695	1	15.878	15.328

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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	0.632	21 18 18.59400	+27 29 15.7920	N2ZZ022494	319.577475	+27.487720	1995.576		22.08			3	1.39	0.04
2	9.889	21 18 17.91552	+27 29 20.8932	N2ZZ022588	319.574648	+27.489137	1991.688	18.14	20.09	18.77	17.41	3	2.54	0.08
3	11.387	21 18 18.63624	+27 29 04.3584	N2ZZ022370	319.577651	+27.484544	1991.688	17.82	19.79	18.53	17.70	3	3.00	0.17
4	16.931	21 18 19.61544	+27 29 06.4860	N2ZZ022379	319.581731	+27.485135	1991.688	18.95	21.44		17.68	3	2.24	0.05
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%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>16.931&%3cFONT%20COLOR=%27#CD5B45%27>21%2018%2019.61544&%3cFONT%20COLOR=%27#CD5B45%27>%2b27%2029%2006.4860&N2ZZ022379&319.581731&%2b27.485135&1991.688&18.95&21.44&%20&17.68&3&%20%202.24&%200.05%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6638a1391f9384&-out.add=.&-source=I/305/out&GSC2.3===N2ZZ022589&-out.orig=o' class='full'521.78821 18 16.96224+27 29 21.1524N2ZZ022589319.570676+27.4892091991.68820.0820.89    3 1.82 0.29 622.13921 18 17.47416+27 29 32.6040N2ZZ022725319.572809+27.4923901991.68820.1621.59    3 1.92 0.40 724.96321 18 16.80216+27 29 06.5220N2ZZ022401319.570009+27.4851451991.68817.4119.1417.9816.873 2.96 0.13 829.00521 18 19.16184+27 29 43.5120N2ZZ022879319.579841+27.4954201991.68817.7018.8817.7817.243 2.76 0.06 929.71021 18 20.53440+27 29 02.1408N2ZZ022326319.585560+27.4839281991.68819.8822.15    3 2.17 0.38 %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	10.100	21 18 17.88744	+27 29 20.6772	319.574531	+27.489077	-6.5	-13.5	16.400	15.596	20.25	20.22	18.22	18.07	17.48	6	0
2	11.373	21 18 18.61584	+27 29 04.3476	319.577566	+27.484541	-2.6	-10.1	16.370	16.022	20.22	19.81	18.24	17.84	17.50	6	0
3	16.743	21 18 19.59168	+27 29 06.3492	319.581632	+27.485097	-0.7	-13.0	16.164	15.182	20.83	21.34	19.04	19.16	17.70	6	0
4	22.341	21 18 17.44056	+27 29 32.4852	319.572669	+27.492357	-10.7	-6.8			20.78			20.09		2	0
5	22.578	21 18 16.91304	+27 29 21.7608	319.570471	+27.489378	-11.4	14.3			20.98	20.91		20.19		3	0
6	25.215	21 18 16.78128	+27 29 06.5400	319.569922	+27.485150	-3.5	-3.4	15.878	15.185	19.92	19.31	17.29	17.30	16.84	6	0
7	28.888	21 18 19.13856	+27 29 43.4796	319.579744	+27.495411	-9.5	-9.2	16.466	17.169	19.11	18.67	17.53	17.51	17.40	6	0

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Full	_r arcsec	_RAJ2000 [****ClosingBrace(s)Inserted****]
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%3cEM%3e%20%3cFONT%20COLOR=%27#CD5B45%27>_RAJ2000

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%22>%5cFONT SIZE=-1"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 9.88521 18 17.89970+27 29 20.5295XPM 234-0820645319.574582+27.489036 1.51 -15.93 1.88 -15.5218.14020.08618.77117.41016.400 0.10716.008 0.16215.596   11664943319.318.3 39846.28804000M 211.88421 18 18.62354+27 29 03.8436XPM 234-0820659319.577598+27.484401 -4.27 -18.91 -3.89 -18.5117.81919.79218.53217.69516.370 0.10515.847 0.14216.022 0.290 11664945219.217.8 39846.28804000M 316.81421 18 19.59143+27 29 06.2159XPM 234-0820676319.581631+27.485060 -8.27 -13.08 -7.89 -12.6718.95321.438  17.67816.164 0.08515.904 0.15415.182 0.145 11664945019.718.5 39846.28804000M 425.14321 18 16.78728+27 29 06.5326XPM 234-0820628319.569947+27.485148 -2.05 -3.00 -1.68 -2.6017.41119.14117.97816.87115.878 0.06915.328 0.09015.185 0.145 11664944819.017.8 39846.28804000M 528.79521 18 19.15197+27 29 43.3321XPM 234-0820669319.579800+27.495370 0.89 -11.07 1.26 -10.6717.70118.88017.77817.24316.466 0.11816.730  17.169   11664941718.518.2 39846.28804000M %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	10.099	21 18 17.88746	+27 29 20.6767	319.574531	+27.489077	0.090	0.090	20.086	0.300	18.140	0.300	18.338	0.400	16.901	0.500	1981.8700	1981.8700	-6.5	4.6	-13.5	4.6
2	11.373	21 18 18.61588	+27 29 04.3478	319.577566	+27.484541	0.095	0.095	19.792	0.300	17.819	0.300	18.012	0.400	16.561	0.500	1980.1300	1980.1300	-2.6	4.7	-10.1	4.7
3	16.742	21 18 19.59166	+27 29 06.3490	319.581632	+27.485097	0.080	0.080	21.438	0.300	18.953	0.300	18.985	0.400	17.269	0.500	1986.1000	1986.1000	-0.7	4.2	-13.0	4.2
4	22.341	21 18 17.44051	+27 29 32.4848	319.572669	+27.492357	0.163	0.163	21.592	0.300	20.159	0.300	20.401	0.400	19.279	0.500	1971.6000	1971.6000	-10.7	8.1	-6.8	8.1
5	22.578	21 18 16.91305	+27 29 21.7611	319.570471	+27.489378	0.133	0.133	20.894	0.300	20.080	0.300	20.263	0.400	19.567	0.500	1978.8900	1978.8900	-11.4	6.8	14.3	6.8
6	25.215	21 18 16.78127	+27 29 06.5399	319.569922	+27.485150	0.080	0.080	19.141	0.300	17.411	0.300	17.640	0.400	16.331	0.500	1985.2600	1985.2600	-3.5	4.3	-3.4	4.3
7	28.888	21 18 19.13853	+27 29 43.4802	319.579744	+27.495411	0.100	0.100	18.880	0.300	17.701	0.300	17.932	0.400	16.979	0.500	1978.3400	1978.3400	-9.5	4.9	-9.2	4.9
8	29.773	21 18 20.53087	+27 29 01.9124	319.585545	+27.483865	0.400	0.400	22.151	0.300	19.882	0.300	19.997	0.400	18.386	0.500	1991.6900	1991.6900	-5.3	12.4	-27.3	7.8

%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