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	17.236	08 08 04.30272	+34 52 39.8820	1200-05949670	122.017928	+34.877745			19.1	18.8	1954.153

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cB%3e%3cFONT%20COLOR=%27#CD5B45%27>%20The%20current%20version%20includes%20only%20the%20North%20%28POSS-I%20plates%29%3cP%3e%0a

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	bStel	bDiam arcsec	b-r mag	Mflag
1	2.612	08 08 03.83088	+34 52 58.2420	EO0989-0224513	122.015962	+34.882845	20.00	L	0				20.43		1	3.43	9.5	0.43
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%202.612&%3cFONT%20COLOR=%27#CD5B45%27>08%2008%2003.83088&%3cFONT%20COLOR=%27#CD5B45%27>%2b34%2052%2058.2420&EO0989-0224513&122.015962&%2b34.882845&20.00&L&%200&%20&%20&%20&20.43&%20&%201&%20%20%203.43&%20%20%209.5&%20%200.43&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6639ef36d040d&-out.add=.&-source=I/267/out&APM-ID===EO0989-0225037&-out.orig=o' class='full'217.57208 08 04.26000+34 52 39.3132EO0989-0225037122.017750+34.87758718.99   1 12.49 8.0 0.3620.74   2 6.01 8.8 1.75   320.94708 08 04.00800+34 53 16.5012EO0989-0224005122.016700+34.88791719.82  -1 -2.35 3.3 0.1321.80L 0     1.98   %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	1.870	08 08 03.79752	+34 52 57.5904	1248-0160539	122.015823	+34.882664	196	45	1976.1	0	0	2	20.82		21.03
2	17.359	08 08 04.26216	+34 52 39.5508	1248-0160540	122.017759	+34.877653	79	308	1979.0	0	0	5	20.27	19.49	18.92	18.76	18.24
3	18.814	08 08 04.32744	+34 52 38.3016	1248-0160541	122.018031	+34.877306	145	121	1981.0	8	-30	3		19.16		19.58	18.17

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

%22>%5cFONT SIZE=-1magr_

Rmag
magr_

Jmag
magHmag
magKmag
magR

1 1.86908 08 03.797328+34 52 57.590041248-0164424..122.0158222+34.8826639B 0.0 0.0 0.0 0.021.030B                 217.35808 08 04.261992+34 52 39.550081248-0164425..122.0177583+34.8776528B 0.0 0.0 0.0 0.018.920B    18.760B         318.81508 08 04.327344+34 52 38.300161248-0164426..122.0180306+34.8773056B 8.0 5.0 -30.0 4.0        19.580B         %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	1.735	08 08 03.81048	+34 52 57.3996	N9EU017831	122.015877	+34.882611	1998.075		21.47			3	1.87	0.32
2	18.003	08 08 04.32072	+34 52 39.1440	N9EU012077	122.018003	+34.877540	1988.949	18.99	19.81			3	3.66	0.20

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

%20

%22> 1 1.65508 08 03.77976+34 52 57.4140122.015749+34.882615 -9.0 1.1    20.8221.03       2 0 217.44408 08 04.25472+34 52 39.4248122.017728+34.877618 -5.0 -6.4    20.2718.9219.4918.7618.24 5 0 318.94908 08 04.32096+34 52 38.1252122.018004+34.877257 3.2 -30.6        19.1619.5818.17 3 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

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	17.237	08 08 04.26962	+34 52 39.7165	122.017790	+34.877699	0.112	0.100	18.920	0.400	18.760	0.400	18.469	0.096	17.715	0.122	2007.1000	2007.1000	-5.0	5.0	-6.4	5.0
2	18.949	08 08 04.32095	+34 52 38.1247	122.018004	+34.877257	0.133	0.133	19.811	0.300	18.987	0.300	19.171	0.400	18.469	0.500	1981.0100	1981.0100	3.2	6.8	-30.6	6.8

%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

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

%20

%22>%5cFONT SIZE=-1mas/yre_
(...)

pmDE
mas/yr

e_
(...)

Nobs

Dt
yr

Rmag
mag

Bmag
mag

Nmag
mag

Vmag
mag

Jmag
mag

Hmag
mag

Kmag
mag

117.60408 08 04.280663+34 52 39.37507122.0178361 424.00+34.8776042 320.0061350+00120774 3.0 12.9 -7.9 9.7 443.921 18.987 19.811           %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"	RA_ICRS deg	DE_ICRS deg	rmag mag	pmRA mas/yr	e_ (...)	pmxRA mas/yr	e_ (...)	Chi2RA	pmGRA mas/yr	pmDE mas/yr	e_ (...)	pmxDE mas/yr	e_ (...)	Chi2DE	pmGDE mas/yr	Nobs	Flag	PS1	Gaia	DR9+DR12	Sloan	2M
1	1.559	08 08 03.7706792264	+34 52 57.246310159	122.01574435506	+34.88258872493	21.493950	9.802	5.556	9.219	5.621	7.48388e-03		7.310	7.547	28.138	10.267	4.14852e-01		4	10	PS1	Gaia	DR9+DR12	Sloan	2M
2	17.912	08 08 04.2914638898	+34 52 38.977389019	122.01777575981	+34.87749401595	21.300259	-31.111	14.850	-25.704	15.619	1.05984e-01		0.107	24.582	41.157	25.764	1.19557e-02		5	0	PS1	Gaia	DR9+DR12	Sloan	2M

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