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	0.282	18 21 34.61400	+02 03 06.6816	0900-12556837	275.394225	+02.051856			16.4	15.9	1954.416
2	6.130	18 21 34.44144	+02 03 11.9412	0900-12556686	275.393506	+02.053317			19.0	17.6	1954.416
3	6.421	18 21 34.19952	+02 03 06.8328	0900-12556452	275.392498	+02.051898			19.6	18.6	1954.416
4	14.139	18 21 35.50536	+02 03 01.3212	0900-12557653	275.397939	+02.050367			19.2	17.4	1954.416
5	22.123	18 21 33.76152	+02 02 48.5628	0900-12556045	275.390673	+02.046823			18.3	16.3	1954.416
6	24.838	18 21 36.18288	+02 03 15.0300	0900-12558312	275.400762	+02.054175			18.9	17.4	1954.416
7	29.798	18 21 36.38208	+02 02 52.4832	0900-12558510	275.401592	+02.047912			18.8	17.3	1954.416

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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 [****ClosingBrace(s)Inserted****]
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Class

%22>a
pixe

1 0.29718 21 34.62960+02 03 06.7752N02003213981275.394290+02.0518821993.53215.61 0.4416.99 0.433 5.00 0.35 2 6.15118 21 34.44408+02 03 11.9844N02003213982275.393517+02.0533291993.53217.76 0.4519.27 0.440 2.44 0.06 314.13318 21 35.50488+02 03 01.3176N02003213899275.397937+02.0503661993.53217.31 0.4419.24 0.443 3.43 0.19 422.09118 21 33.75720+02 02 48.6492N02003213758275.390655+02.0468471993.53216.11 0.4418.21 0.433 4.50 0.27 525.10118 21 36.19632+02 03 15.2424N02003214020275.400818+02.0542341993.53217.44 0.4419.07 0.443 3.42 0.28 629.71418 21 36.37632+02 02 52.5012N02003213784275.401568+02.0479171993.53217.63 0.4419.25 0.440 2.46 0.10 %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	0.790	18 21 34.59480	+02 03 07.1028	0920-0448177	275.394145	+02.051973	122	220	1976.6	0	0	5	16.83	15.77	17.16	15.37	15.03
2	5.805	18 21 34.24152	+02 03 07.0020	0920-0448169	275.392673	+02.051945	567	153	1976.6	0	0	5	20.72	18.39	19.95	18.14	17.72
3	5.899	18 21 34.43808	+02 03 11.6532	0920-0448175	275.393492	+02.053237	156	233	1974.6	0	0	5	19.41	17.48	19.31	16.90	16.95
4	9.509	18 21 34.03080	+02 03 09.7200	0920-0448164	275.391795	+02.052700	999	999	1988.7	-516	110	3			19.20	18.50	15.59
5	13.954	18 21 35.49288	+02 03 01.3500	0920-0448192	275.397887	+02.050375	110	120	1976.6	0	0	5	19.86	17.23	18.90	17.10	16.43
6	22.234	18 21 33.74088	+02 02 48.6528	0920-0448160	275.390587	+02.046848	36	11	1975.0	0	0	5	18.43	16.08	18.29	16.19	15.50
7	25.260	18 21 36.20472	+02 03 15.3612	0920-0448209	275.400853	+02.054267	122	109	1976.6	14	4	5	19.33	17.23	19.35	17.27	16.49
8	29.505	18 21 36.36480	+02 02 52.6200	0920-0448214	275.401520	+02.047950	79	40	1976.6	0	0	5	19.25	17.21	19.08	17.36	16.30

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

YM

%20

%22>RAJ2000
deg

DEJ2000
deg

r

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mas/yr

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(...)

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mas/yr

e_
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Bmag
mag

r_

Vmag
mag

r_

Rmag
mag

r_

Jmag
mag

Hmag
mag

Kmag
mag

R

1 0.78918 21 34.594656+02 03 07.099920920-0452703YM275.3941444+02.0519722B 0.0 0.0 0.0 0.017.310Y16.550Y15.370B15.01514.45514.359   2 5.80818 21 34.241328+02 03 06.999840920-0452695..275.3926722+02.0519444B 0.0 0.0 0.0 0.019.950B    18.140B         3 5.89718 21 34.438008+02 03 11.649960920-0452701YM275.3934917+02.0532361B 0.0 0.0 0.0 0.018.230Y17.970Y16.900B15.85515.31715.132   4 9.51118 21 34.030656+02 03 09.720000920-0452690..275.3917944+02.0527000B -516.0159.0 110.0514.119.200B    18.500B         513.95118 21 35.492664+02 03 01.350000920-0452719.M275.3978861+02.0503750B 0.0 0.0 0.0 0.018.900B    17.100B15.95815.50514.904   622.23818 21 33.740664+02 02 48.649920920-0452686YM275.3905861+02.0468472B 0.0 0.0 0.0 0.018.150Y17.070Y16.190B14.26913.53513.353   725.25918 21 36.204672+02 03 15.360120920-0452736YM275.4008528+02.0542667B 14.0 4.0 4.0 3.018.350Y17.970Y17.270B15.59015.23414.980   829.50318 21 36.364656+02 02 52.620000920-0452741.M275.4015194+02.0479500B 0.0 0.0 0.0 0.019.080B    17.360B15.51614.80714.657   %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	0.444	18 21 34.64544	+02 03 06.8292	182134.6+020306		275.394356	+02.051897	16.446	2	15.015	14.456	14.360
2	22.367	18 21 33.76032	+02 02 48.2748	182133.7+020248		275.390668	+02.046743	17.079	1	14.269	13.536	13.354

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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	0.301	18 21 34.62960	+02 03 06.7788	N1MH003981	275.394290	+02.051883	1993.532	15.61	16.99	15.96	15.33	3	5.00	0.35
2	6.002	18 21 34.22928	+02 03 07.1460	N1MH003983	275.392622	+02.051985	1986.655	19.37	20.38			3	2.04	0.32
3	6.153	18 21 34.44432	+02 03 11.9880	N1MH003982	275.393518	+02.053330	1993.532	17.76	19.27		16.41	0	2.44	0.06
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e3&%3cFONT%20COLOR=%27#CD5B45%27>%206.153&%3cFONT%20COLOR=%27#CD5B45%27>18%2021%2034.44432&%3cFONT%20COLOR=%27#CD5B45%27>%2b02%2003%2011.9880&N1MH003982&275.393518&%2b02.053330&1993.532&17.76&19.27&%20&16.41&0&%20%202.44&%200.06%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663f5ae32a8317&-out.add=.&-source=I/305/out&GSC2.3===N1MH053886&-out.orig=o' class='full'4 8.76618 21 34.17360+02 03 00.9468N1MH053886275.392390+02.0502631993.53219.5521.91    3 3.12 0.61 514.13718 21 35.50512+02 03 01.3176N1MH003899275.397938+02.0503661993.53217.3119.2418.2216.483 3.43 0.19 619.23718 21 33.80568+02 03 21.2580N1MH069295275.390857+02.0559051993.53220.08      3 1.53 0.34 720.73818 21 34.53624+02 02 45.7872N1MH069215275.393901+02.0460521993.53219.65      3 1.64 0.09 822.08918 21 33.75744+02 02 48.6492N1MH003758275.390656+02.0468471993.53216.1118.2117.2515.250 4.50 0.27 923.60418 21 35.33592+02 03 27.5580N1MH069309275.397233+02.0576551993.53220.16      3 1.41 0.36 1025.10518 21 36.19656+02 03 15.2460N1MH004020275.400819+02.0542351993.53217.4419.0718.1216.340 3.42 0.28 1126.19418 21 33.30432+02 02 49.3656N1MH081492275.388768+02.0470461986.65520.23      3 1.43 0.36 1227.34318 21 33.92040+02 02 41.2728N1MH069204275.391335+02.0447981993.53219.85      3 2.50 0.61 1327.51818 21 34.04328+02 03 32.5692N1MH069315275.391847+02.0590471993.53220.20      3 1.51 0.42 1429.16218 21 36.29688+02 03 21.4452N1MH069298275.401237+02.0559571993.53219.94      3 2.09 0.51 1529.71218 21 36.37632+02 02 52.5048N1MH003784275.401568+02.0479181993.53217.6319.2518.2716.300 2.46 0.10 %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	0.440	18 21 34.62576	+02 03 06.9192	275.394274	+02.051922	9.5	-3.9	15.015	14.360	16.83	17.16	15.77	15.37	15.03	6	0
2	5.789	18 21 34.24344	+02 03 07.1316	275.392681	+02.051981	18.4	3.7			20.72	19.95	18.39	18.14	17.72	5	0
3	6.045	18 21 34.42752	+02 03 11.7324	275.393448	+02.053259	-2.7	-3.1	15.856	15.133	19.41	19.31	17.48	16.90	16.95	6	0
4	10.860	18 21 33.99096	+02 03 11.6748	275.391629	+02.053243	-544.2	198.4				19.20		18.50	15.59	3	1
5	13.727	18 21 35.48640	+02 03 01.7316	275.397860	+02.050481	-2.6	8.2	15.959	14.905	19.86	18.90	17.23	17.10	16.43	6	0
6	22.206	18 21 33.75216	+02 02 48.5628	275.390634	+02.046823	1.6	-0.2	14.269	13.354	18.43	18.29	16.08	16.19	15.50	6	0
7	25.133	18 21 36.19752	+02 03 15.2856	275.400823	+02.054246	8.1	2.5	15.591	14.981	19.33	19.35	17.23	17.27	16.49	6	0
8	29.524	18 21 36.36336	+02 02 52.5408	275.401514	+02.047928	-2.4	-0.5	15.517	14.657	19.25	19.08	17.21	17.36	16.30	6	0

%0a%0a

>	\BegDIVclass='sort-down ' </A>
dec 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	0.373	18 21 34.63657	+02 03 06.8255	XPM 184-0538680	275.394319	+02.051896	13.19	1.74	12.45	1.03	15.614	16.994	15.956	15.330	15.015	0.052	14.456	0.064	14.360	0.088	623234480	16.4	15.9	631	45.183743	0	0	M
2	6.211	18 21 34.42080	+02 03 11.8655	XPM 184-0538672	275.393420	+02.053296	-1.13	-3.05	-1.87	-3.76	17.755	19.270		16.407	15.856	0.096	15.317	0.112	15.133	0.160	623234477	19.0	17.6	631	45.183743	0	0	M
3	13.622	18 21 35.48304	+02 03 01.9010	XPM 184-0538727	275.397846	+02.050528	-1.74	11.39	-2.48	10.68	17.310	19.244	18.215	16.479	15.959	0.085	15.505	0.124	14.905		623234490	19.2	17.4	631	45.183743	0	0	M
4	22.167	18 21 33.75458	+02 02 48.5843	XPM 184-0538636	275.390644	+02.046829	3.87	-0.96	3.13	-1.67	16.106	18.207	17.249	15.249	14.269	0.030	13.536	0.026	13.354	0.040	623234515	18.3	16.3	631	45.183743	0	0	M
5	25.118	18 21 36.19635	+02 03 15.2893	XPM 184-0538769	275.400818	+02.054247	10.22	4.28	9.48	3.57	17.441	19.067	18.121	16.344	15.591	0.066	15.235	0.096	14.981	0.116	623234463	18.9	17.4	631	45.183743	0	0	M
6	29.532	18 21 36.36360	+02 02 52.5300	XPM 184-0538776	275.401515	+02.047925	-0.01	-0.30	-0.76	-1.01	17.629	19.254	18.269	16.304	15.517	0.052	14.807	0.055	14.657	0.102	623234506	18.8	17.3	631	45.183743	0	0	M

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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	0.514	18 21 34.652280	+02 03 06.83028	461-081207	275.3943845	+02.0518973	178	16.212	0	0	14.5	8.4	15.015	14.360	14.813	14.357	14.283	14.070	0	0	0	0	0	0	0	1	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