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	8.399	20 38 01.60944	-27 17 59.4816	0600-42858646	309.506706	-27.299856			17.9	16.5	1981.582
2	12.379	20 38 01.01352	-27 18 06.0624	0600-42858465	309.504223	-27.301684			20.0	18.0	1981.582
3	17.337	20 38 01.34736	-27 18 10.9332	0600-42858569	309.505614	-27.303037			20.1	18.0	1981.582
4	24.222	20 37 59.43288	-27 18 01.9332	0600-42857995	309.497637	-27.300537			20.5	18.0	1981.582
5	26.239	20 37 59.88816	-27 17 33.6120	0600-42858131	309.499534	-27.292670			19.1	18.0	1981.582
6	27.847	20 37 59.24136	-27 17 42.3312	0600-42857927	309.496839	-27.295092			19.2	18.0	1981.582

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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	[****ClosingBrace(s)Inserted****]
">

pix&%">\BegDIVclass='sort-down ' </A>dece

1 8.13920 38 01.58928-27 17 59.3880S333023311776309.506622-27.2998301992.42316.29 0.4218.38 0.423 3.50 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	8.523	20 38 01.63680	-27 17 59.2512	0627-1131051	309.506820	-27.299792	111	41	1973.9	0	0	5	18.62	16.39	18.10	16.16	15.91
2	11.878	20 38 01.04544	-27 18 05.6124	0626-1132331	309.504356	-27.301559	518	68	1978.7	-4	10	4	19.61		20.59	19.22	18.31
3	17.140	20 38 01.35816	-27 18 10.7100	0626-1132336	309.505659	-27.302975	188	179	1986.8	0	0	3			20.66	19.03	18.56
4	23.897	20 37 59.45472	-27 18 01.7820	0626-1132321	309.497728	-27.300495	169	78	1978.7	0	0	4		19.01	21.24	19.27	18.23
5	25.717	20 38 02.49216	-27 17 35.4012	0627-1131054	309.510384	-27.293167	164	60	1992.1	0	0	2				20.29	18.56
6	26.182	20 37 59.90400	-27 17 33.5112	0627-1131044	309.499600	-27.292642	66	117	1973.9	0	0	5	19.88	18.73	19.37	18.52	18.17
7	27.653	20 37 59.26536	-27 17 42.1008	0627-1131039	309.496939	-27.295028	42	175	1978.7	0	0	4	20.16		19.61	18.86	18.69

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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

1 8.52120 38 01.636656-27 17 59.250120627-1211300YM309.5068194-27.2997917B 0.0 0.0 0.0 0.018.180Y16.820Y16.160B14.78514.08013.986   211.87620 38 01.045344-27 18 05.609880626-1211486..309.5043556-27.3015583B -4.0 19.0 10.0 2.020.590B    19.220B         317.13920 38 01.357992-27 18 10.710000626-1211491..309.5056583-27.3029750B 0.0 0.0 0.0 0.020.660B    19.030B         423.89720 37 59.454672-27 18 01.779840626-1211476YM309.4977278-27.3004944B 0.0 0.0 0.0 0.016.160Y15.900Y19.270B16.69816.23415.977   525.71620 38 02.491992-27 17 35.400120627-1211303..309.5103833-27.2931667B 0.0 0.0 0.0 0.0        20.290B         626.18320 37 59.904000-27 17 33.510120627-1211293..309.4996000-27.2926417B 0.0 0.0 0.0 0.019.370B    18.520B         727.65320 37 59.265336-27 17 42.100080627-1211288..309.4969389-27.2950278B 0.0 0.0 0.0 0.019.610B    18.860B         %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	8.563	20 38 01.61640	-27 17 59.6220	203801.6-271759		309.506735	-27.299895	16.603	1	14.785	14.080	13.986

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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	8.136	20 38 01.58952	-27 17 59.3808	SCHB011776	309.506623	-27.299828	1992.423	16.29	18.38		15.78	0	3.50	0.10
2	11.626	20 38 01.00560	-27 18 05.2848	SCHB011735	309.504190	-27.301468	1992.423	19.72	20.86		18.59	3	1.73	0.29
3	17.338	20 38 01.35288	-27 18 10.9224	SCHB011724	309.505637	-27.303034	1992.423	19.40	20.97		18.66	3	1.86	0.37
4	24.304	20 37 59.42616	-27 18 01.9260	SCHB011747	309.497609	-27.300535	1992.423	19.30	21.61		18.03	3	1.49	0.02
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>24.304&%3cFONT%20COLOR=%27#CD5B45%27>20%2037%2059.42616&%3cFONT%20COLOR=%27#CD5B45%27>-27%2018%2001.9260&SCHB011747&309.497609&-27.300535&1992.423&19.30&21.61&%20&18.03&3&%20%201.49&%200.02%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663ce27a34fe3a&-out.add=.&-source=I/305/out&GSC2.3===SCHB021569&-out.orig=o' class='full'525.30920 38 02.44392-27 17 35.3508SCHB021569309.510183-27.2931531990.72919.95    18.623 1.57 0.37 626.52020 37 59.86272-27 17 33.5292SCHB011877309.499428-27.2926471992.42318.5119.81  18.073 2.27 0.09 728.15620 37 59.22504-27 17 42.0648SCHB011835309.496771-27.2950181992.42318.9619.98  19.083 1.81 0.04 %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	8.388	20 38 01.60704	-27 17 59.4996	309.506696	-27.299861	-3.2	-6.4	14.785	13.986	18.62	18.10	16.39	16.16	15.91	6	0
2	12.187	20 38 01.01712	-27 18 05.8752	309.504238	-27.301632	-7.7	2.9			19.61	20.59		19.22	18.31	4	0
3	17.197	20 38 01.33656	-27 18 10.8144	309.505569	-27.303004	-3.5	0.3				20.66		19.03	18.56	3	0
4	24.175	20 37 59.43792	-27 18 01.9800	309.497658	-27.300550	-0.1	-5.2	16.698	15.978		21.24	19.01	19.27	18.23	5	0
5	26.219	20 37 59.89344	-27 17 33.5796	309.499556	-27.292661	4.5	-4.0			19.88	19.37	18.73	18.52	18.17	5	0
6	27.747	20 37 59.25432	-27 17 42.1944	309.496893	-27.295054	3.5	-5.3			20.16	19.61		18.86	18.69	4	0

%0a%0a

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

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_
mag

Hmag
mag

e_
mag

Kmag
mag

e_
mag

2Mkey

Bmag
mag

Rmag
mag

Fld

dT
yr

fg

fs

M

1 8.38620 38 01.60463-27 17 59.5321XPM 125-1342555309.506686-27.299870 -7.49 -6.04 -8.55 -6.2216.28518.379  15.77814.785 0.03714.080 0.04213.986 0.058 6603098917.916.5 52816.94950900M 224.13920 37 59.44153-27 18 02.0087XPM 125-1342535309.497673-27.300558 4.19 -6.65 3.13 -6.8219.30021.610  18.02716.698 0.14016.235 0.21815.978   6603098720.518.0 52816.94950900M %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"	SPMID	RAJ2000 deg	e_ mas	DEJ2000 deg	e_ mas	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Epoch yr	N1	N2	Nc	Bmag mag	Vmag mag	Jmag mag	Hmag mag	Kmag mag	2M	igal	A
1	8.339	20 38 01.604856	-27 17 59.45964	5170215203	309.5066869	65.7	-27.2998499	65.7	-16.57	4.29	-0.08	4.14	1979.01	4	4	0	17.46	16.96	14.785	14.080	13.986	2M	0	A

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

%20

%22>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 8.43120 38 01.625304-27 17 59.29116314-245118309.5067721-27.2998031118616.4780 0 -1.7 7.514.78513.986        000000011 %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	8.431	20 38 01.62523	-27 17 59.2913	309.506772	-27.299803	0.255	0.255	18.379	0.300	16.285	0.300	16.451	0.400	14.932	0.500	1971.2900	1970.6100	-1.7	27.5	7.5	27.5
2	12.186	20 38 01.01715	-27 18 05.8749	309.504238	-27.301632	0.115	0.115	20.855	0.300	19.723	0.300	19.949	0.400	19.029	0.500	1978.7900	1978.7900	-7.7	7.2	2.9	7.2
3	17.197	20 38 01.33656	-27 18 10.8141	309.505569	-27.303004	0.133	0.133	20.660	0.400	19.030	0.400	19.267	0.400	18.020	0.500	1986.8400	1986.8400	-3.5	15.1	0.3	15.1
4	17.247	20 38 01.34308	-27 18 10.8510	309.505596	-27.303014	0.400	0.400	20.965	0.300	19.397	0.300	19.637	0.400	18.429	0.500	1992.4200	1992.4200	-16.6	12.9	10.0	16.6
5	24.175	20 37 59.43792	-27 18 01.9799	309.497658	-27.300550	0.104	0.104	21.610	0.300	19.300	0.300	19.401	0.400	17.770	0.500	1982.3100	1982.3100	-0.1	6.4	-5.2	6.4
6	25.302	20 38 02.44366	-27 17 35.3570	309.510182	-27.293155	0.400	0.400	22.972	0.500	19.952	0.300	19.671	0.400	17.738	0.500	1990.7300	1990.7300	0.0	0.0	0.0	0.0
7	26.218	20 37 59.89346	-27 17 33.5799	309.499556	-27.292661	0.103	0.103	19.810	0.300	18.512	0.300	18.750	0.400	17.718	0.500	1973.9600	1973.9600	4.5	6.0	-4.0	6.0
8	27.746	20 37 59.25436	-27 17 42.1943	309.496893	-27.295054	0.115	0.115	19.977	0.300	18.959	0.300	19.172	0.400	18.332	0.500	1978.7900	1978.7900	3.5	7.2	-5.3	7.2

%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