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	5.066	10 42 32.85000	+24 41 30.5412	1125-06164656	160.636875	+24.691817			18.4	18.2	1955.279

%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	4.562	10 42 32.96736	+24 41 31.6428	1146-0180006	160.637364	+24.692123	675	228	1983.8	0	0	3	17.66		18.90		17.49
2	5.722	10 42 33.16536	+24 41 33.7704	1146-0180008	160.638189	+24.692714	345	365	1983.2	0	0	3		17.02	17.19	17.16
3	7.207	10 42 32.65680	+24 41 29.5728	1146-0180005	160.636070	+24.691548	82	797	1969.3	-56	-22	3	18.14	18.33	18.52
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%3cEM%3e3&%3cFONT%20COLOR=%27#CD5B45%27>%207.207&%3cFONT%20COLOR=%27#CD5B45%27>10%2042%2032.65680&%3cFONT%20COLOR=%27#CD5B45%27>%2b24%2041%2029.5728&1146-0180005&160.636070&%2b24.691548&%2082&797&1969.3&%20%20%20-56&%20%20%20-22&3&18.14&18.33&18.52&%20&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ664233363e3f8a&-out.add=.&-source=I/284/out&USNO-B1.0===1146-0180004&-out.orig=o' class='full'4 8.04910 42 32.58552+24 41 28.78081146-0180004160.635773+24.6913284544301983.2 -24 -334319.98  20.0818.82   5 8.69810 42 33.46488+24 41 35.79001146-0180009160.639437+24.693275776 291976.3 0 0215.54  14.11     %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	4.560	10 42 32.967336	+24 41 31.63992	1146-0184270	..	160.6373639	+24.6921222	B	0.0	0.0	0.0	0.0	18.900	B
2	5.721	10 42 33.165336	+24 41 33.77004	1146-0184272	..	160.6381889	+24.6927139	B	0.0	0.0	0.0	0.0	17.190	B			17.160	B
3	7.209	10 42 32.656656	+24 41 29.56992	1146-0184269	..	160.6360694	+24.6915472	B	-56.0	2.0	-22.0	21.0	18.520	B			18.330	e
4	8.052	10 42 32.585328	+24 41 28.78008	1146-0184268	..	160.6357722	+24.6913278	B	-24.0	17.0	-334.0	16.0	20.080	B			18.820	B
5	8.697	10 42 33.464664	+24 41 35.79000	1146-0184273	YM	160.6394361	+24.6932750	B	0.0	0.0	0.0	0.0	17.720	Y					15.144	15.349	14.750

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

%22>%5cFONT SIZE=-1arcsec _RAJ2000
"h:m:s" _DEJ2000
"d:m:s"RAJ2000
degDEJ2000
degpmRA
mas/yrpmDE
mas/yrJmag
magKmag
magb1mag
magb2mag
magr1mag
magr2mag
magimag
magNo

fl

1 4.52210 42 32.96448+24 41 31.5600160.637352+24.692100 12.6 3.7    17.6618.90    17.49 3 0 2 5.72410 42 33.15288+24 41 33.7668160.638137+24.692713 -2.5 4.9      17.1917.0217.16   3 0 3 7.21610 42 32.65224+24 41 29.3028160.636051+24.691473 -61.8 -28.6    18.1418.5218.33     3 0 4 8.36510 42 32.56200+24 41 28.7412160.635675+24.691317 -36.0 -329.6    19.9820.08  18.82   3 0 5 8.84510 42 33.50400+24 41 35.6640160.639600+24.693240 7.2 -3.615.14514.75015.5414.11       3 1 6 9.95410 42 33.58920+24 41 36.2364160.639955+24.693399 -6.0 -8.215.97214.00014.1113.1213.2713.7413.57 7 1 %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"	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	5.724	10 42 33.15285	+24 41 33.7673	160.638137	+24.692713	0.133	0.133	17.190	0.400	17.160	0.400	17.153	0.400	17.048	0.500	1983.2700	1983.2700	-2.5	6.7	4.9	6.7
2	7.216	10 42 32.65228	+24 41 29.3033	160.636051	+24.691473	0.133	0.133	18.520	0.400	18.330	0.400	18.368	0.400	18.140	0.500	1969.3000	1969.3000	-61.8	6.7	-28.6	6.7
3	8.365	10 42 32.56199	+24 41 28.7406	160.635675	+24.691317	0.133	0.133	20.080	0.400	18.820	0.400	19.057	0.400	18.049	0.500	1983.2700	1983.2700	-36.0	6.7	-329.6	6.7
4	8.845	10 42 33.50401	+24 41 35.6642	160.639600	+24.693240	0.088	0.082	14.110	0.400	17.662	0.500	17.521	0.400	19.846	0.500	1992.7500	1992.7500	7.2	5.8	-3.6	5.7

%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"	URAT1	RAICRS deg	DEICRS [****ClosingBrace(s)Inserted****]
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DEICRS

%20

%22>%5cFONT SIZE=-1degEpoch
yr

f.mag
mag

e_
mag

pmRA
mas/yr

pmDE
mas/yr

Jmag
mag

Hmag
mag

Kmag
mag

Bmag
mag

Vmag
mag

gmag
mag

rmag
mag

imag
mag

1 6.99910 42 33.502594+24 41 35.57465574-172785160.6390187+24.69293002013.16316.847  -143.0 -78.015.14515.35014.750           %0a%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2	RA_ICRS deg	DE_ICRS deg	objID	Epoch yr	Class	Gmag mag	OMag mag	Bjmag mag	Fpgmag mag	Epgmag mag	Npgmag mag	Umag mag	Bmag mag	Vmag mag	umag mag	gmag mag	rmag mag	imag mag	zmag mag	ymag mag	Jmag mag	Hmag mag	Ksmag mag	Zmag mag	Ymag mag	W1mag mag	W2mag mag	W3mag mag	W4mag mag	FUVmag mag	NUVmag mag	a pix	e pix	PA pix
1	5.938	10 42 33.1864560000	+24 41 33.985428000	N6M0029550	160.63827690000	+24.69277373000	1201132029550	2014.298	3													20.076
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1	5.938	10 42 33.1864560000	+24 41 33.985428000	N6M0029550	160.63827690000	+24.69277373000	1201132029550	2014.298	3													20.076

%22>\Ahref='VizieR-5?-ref=VIZ664233363e3f8a&-out.add=.&-source=I/353/gsc242&-c=160.63890070000%20%2b24.69304520000,eq=ICRS,rs=2&-out.orig=o' class='full'2 7.25910 42 32.9812836378+24 41 36.831813927N6M0032184160.63890070000+24.69304520000 12011320321842010.5604                                        13.87013.69810.611 7.813           3 8.99110 42 33.5198400000+24 41 35.703600000N6M0004810160.63966600000+24.69325100000 1201132048101998.3530                                 15.350 14.750                       %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	2MASS	Jmag mag	e_Jmag mag	Hmag mag	e_Hmag mag	Kmag mag	e_Kmag mag	Qflg	Rflg	Bflg	Cflg	Xflg	Aflg
1	8.991	10 42 33.51984	+24 41 35.7036	160.639666	+24.693251	10423351+2441357	15.145		15.350	0.130	14.750	0.130	UBB	022	011	000	2	0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	WISE	RAJ2000 deg	DEJ2000 deg	eeMaj arcsec	eeMin arcsec	Im	W1mag mag	e_ mag	[****ClosingBrace(s)Inserted****]
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mag&%">\BegDIVclass='sort-down ' </A>decW2mag
mage_
mag

W3mag
mag

e_
mag

W4mag
mag

e_
mag

Jmag
mag

Hmag
mag

Kmag
mag

ccf

ex

var

d2M
arcsec

2M

1 8.16710 42 33.40015+24 41 35.6114J104233.40+244135.6160.639167+24.693225 0.145 0.122Im13.697 0.03113.526 0.04010.360 0.076 8.542 0.44015.14515.35014.75000004nnnn 1.6342M %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"	AllWISE	RAJ2000 deg	DEJ2000 deg	Im	W1mag mag	e_ mag	W2mag mag	e_ mag	W3mag mag	e_ mag	W4mag mag	e_ mag	Jmag mag	e_ mag	Hmag mag	e_ mag	Kmag mag	e_ mag	ccf	ex	var	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	qph	d2M arcsec	2M
1	7.259	10 42 33.336182	+24 41 34.96272	J104233.33+244134.9	160.6389008	+24.6930452	Im	13.870	0.032	13.698	0.042	10.611	0.112	7.813		15.145		15.350	0.130	14.750	0.130	0000	4	nnnn	458	139	-177	118	AABU	2.610	2M

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">Note:

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	objID	f_objID	Qual	e_RAJ2000 (...)	e_DEJ2000 arcsec	Epoch d	Ns	Nd	gmag mag	e_ mag	gKmag mag	e_ mag	gFlags	rmag mag	e_ mag	rKmag mag	e_ mag	rFlags	imag mag	e_ mag	iKmag mag	e_ mag	iFlags	zmag mag	e_ mag	zKmag mag	e_ mag	zFlags [****ClosingBrace(s)Inserted****]
zFlags ">
	ymag mag	e_ mag	yKmag mag	e_ mag	yFlags
1	5.938	10 42 33.18645600	+24 41 33.9854280	160.638276900	+24.692773730	137631606385061875	310456320	37	0.0564	0.0564	56793.297743060	0	3					0					0	20.0756	0.0543	18.4612	0.0282	16777496					0					0

%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