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	4.287	15 08 43.31616	+04 08 43.0728	0900-07912658	227.180484	+04.145298			18.8	18.3	1955.377
2	10.150	15 08 43.68000	+04 08 40.1928	0900-07912708	227.182000	+04.144498			19.1	19.1	1955.377
3	17.086	15 08 42.08088	+04 08 52.5912	0900-07912528	227.175337	+04.147942			19.0	18.4	1955.377

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

b-r

%22>%5cFONT SIZE=-1magMflag

1 6.23315 08 42.76080+04 08 47.8428EO1429-0198887227.178170+04.14662313.52   1 31.71 29.8 0.6715.19   1 36.20 34.7 1.67   2 6.91315 08 43.48872+04 08 42.3024EO1429-0198982227.181203+04.14508420.00L 0      19.80   2 16.07 11.8 -0.20   %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20construction%20of%20the%20%0a%3cB%3eGSC-II%20%0ais%20still%20in%20progress:%20this%0aversion%20has%20no%20proper%20motions,%20and%20the%20magnitude%20limits%20are%2018.5%20in%20F%20%28red%29%0aand%2019.5%20in%20J%20%28blue%29.%20The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%20%0athe%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a

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	5.628	15 08 42.80208	+04 08 47.5620	N13100127318	227.178342	+04.146545	1994.417	12.58	0.42	14.02	0.43	3	14.87	0.72

%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	3.304	15 08 42.92136	+04 08 45.9600	0941-0235086	227.178839	+04.146100	999	999	1970.9	0	0	2	18.02		13.69
2	5.575	15 08 42.79344	+04 08 47.3928	0941-0235085	227.178306	+04.146498	183	278	1950.0	0	0	3		14.28	13.69		13.37
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%205.575&%3cFONT%20COLOR=%27#CD5B45%27>15%2008%2042.79344&%3cFONT%20COLOR=%27#CD5B45%27>%2b04%2008%2047.3928&0941-0235085&227.178306&%2b04.146498&183&278&1950.0&%20%20%20%20%200&%20%20%20%20%200&3&%20&14.28&13.69&%20&13.37%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663c4aa1199dda&-out.add=.&-source=I/284/out&USNO-B1.0===0941-0235090&-out.orig=o' class='full'3 8.35915 08 43.57608+04 08 41.34120941-0235090227.181567+04.1448176051501972.9 90 -36419.4518.3217.8917.58   4 9.73615 08 43.65216+04 08 40.24320941-0235091227.181884+04.1445124833291950.0 -2 0419.7919.1917.54  18.28 511.66815 08 43.77216+04 08 39.51240941-0235092227.182384+04.144309 55 831950.0 0 03  19.30  18.8018.12 614.74615 08 42.21816+04 08 51.45000941-0235081227.175909+04.1476254831341970.9 0 0218.44  16.00     717.70615 08 42.05808+04 08 53.19240941-0235079227.175242+04.1481091596381950.0 0 0419.7218.43  18.3117.33 819.57015 08 41.90808+04 08 53.15280941-0235077227.174617+04.1480989999991965.7 0 0318.7419.4220.00     920.18915 08 41.92800+04 08 54.74040941-0235078227.174700+04.1485397534901974.8 0 02  18.94  18.38   1026.77315 08 41.65200+04 08 25.99080941-0235076227.173550+04.1405534433191970.9 0 02  19.6821.27     %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	3.304	15 08 42.921336	+04 08 45.96000	0941-0239317	..	227.1788389	+04.1461000	B	0.0	0.0	0.0	0.0	13.690	B
2	5.574	15 08 42.793344	+04 08 47.38992	0941-0239316	YM	227.1783056	+04.1464972	B	0.0	0.0	0.0	0.0	17.840	Y	17.910	Y	14.280	e	14.875	13.848	13.381
3	8.358	15 08 43.576008	+04 08 41.34012	0941-0239321	..	227.1815667	+04.1448167	B	90.0	18.0	-36.0	4.0	17.890	B			17.580	B
4	9.735	15 08 43.651992	+04 08 40.23996	0941-0239322	..	227.1818833	+04.1445111	B	-2.0	0.0	0.0	0.0	17.540	B			19.190	e
5	11.450	15 08 42.436656	+04 08 50.31996	0941-0239313	YM	227.1768194	+04.1473111	Y	-12.2	9.0	-2.2	9.0			17.740	Y			15.688	13.961	13.446
6	11.666	15 08 43.771992	+04 08 39.50988	0941-0239323	..	227.1823833	+04.1443083	B	0.0	0.0	0.0	0.0					18.800	B
7	14.748	15 08 42.217992	+04 08 51.45000	0941-0239311	..	227.1759083	+04.1476250	B	0.0	0.0	0.0	0.0	16.000	B
[****ClosingBrace(s)Inserted****]
7	14.748	15 08 42.217992	+04 08 51.45000	0941-0239311	..	227.1759083	+04.1476250	B	0.0	0.0	0.0	0.0	16.000	B

%22>\Ahref='VizieR-5?-ref=VIZ663c4aa1199dda&-out.add=.&-source=I/297/out&NOMAD1===0941-0239309' class='full'817.70615 08 42.058008+04 08 53.189880941-0239309..227.1752417+04.1481083B 0.0 0.0 0.0 0.019.720o    18.310B         919.57015 08 41.908008+04 08 53.149920941-0239307..227.1746167+04.1480972B 0.0 0.0 0.0 0.020.000B    19.420e         1020.18815 08 41.928000+04 08 54.740040941-0239308..227.1747000+04.1485389B 0.0 0.0 0.0 0.0        18.380B         1126.77415 08 41.652000+04 08 25.990080941-0239306..227.1735500+04.1405528B 0.0 0.0 0.0 0.021.270B    19.680e         %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	5.729	15 08 42.78288	+04 08 47.4612	150842.7+040847		227.178262	+04.146517	16.699	2

%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	5.629	15 08 42.80232	+04 08 47.5656	N5QE007318	227.178343	+04.146546	1994.417	12.58	14.02	14.80	13.39	3	14.87	0.72

%0a%0a

Full	_r arcsec	[****ClosingBrace(s)Inserted****]
">

%22>arcsec ">\BegDIVclass='sort-down ' </A>string _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 5.58515 08 42.79536+04 08 47.4288227.178314+04.146508 -2.8 1.814.87513.382  13.6914.28  13.37 7 0 2 8.34615 08 43.57488+04 08 41.3196227.181562+04.144811 90.0 -38.2    19.4517.8918.3217.58   4 0 3 8.40315 08 42.64968+04 08 49.2684227.177707+04.147019 -95.8 73.6    18.0213.69       2 0 4 9.66815 08 43.64640+04 08 40.1964227.181860+04.144499 -4.2 -3.3    19.7917.5419.19  18.28 7 0 511.65515 08 43.76904+04 08 39.4116227.182371+04.144281 -4.4 -3.5        19.3018.8018.12 6 0 614.71215 08 42.22920+04 08 51.6264227.175955+04.147674 9.8 3.4    18.4416.00       2 0 718.20615 08 42.04272+04 08 53.7324227.175178+04.148259 -9.1 10.7    19.72  18.4318.3117.33 7 0 821.23115 08 41.86536+04 08 55.2192227.174439+04.148672 -25.6 9.7        18.9418.38   2 0 925.80115 08 41.59200+04 08 57.3324227.173300+04.149259 -107.8 92.9    18.7420.0019.42     3 0 1026.38515 08 41.66208+04 08 26.4192227.173592+04.140672 8.6 8.6      21.2719.68     2 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	5.276	15 08 42.78860	+04 08 46.9313	227.178286	+04.146370	0.033	0.014	14.019	0.300	12.575	0.300	15.593	0.080	14.371	0.110	2000.3500	2000.3500	-2.8	5.2	1.8	5.2
2	8.345	15 08 43.57487	+04 08 41.3202	227.181562	+04.144811	0.115	0.115	17.890	0.400	17.580	0.400	17.650	0.400	17.331	0.500	1972.9000	1972.9000	90.0	6.5	-38.2	6.5
3	9.668	15 08 43.64639	+04 08 40.1962	227.181860	+04.144499	0.087	0.087	17.540	0.400	19.190	0.400	18.734	0.400	19.919	0.500	1985.5000	1985.5000	-4.2	4.4	-3.3	4.4
4	13.671	15 08 42.37352	+04 08 52.5957	227.176556	+04.147943	0.043	0.045	16.000	0.400	21.269	0.210	20.534	0.116	19.385	0.138	2000.3500	2000.3500	9.8	10.5	3.4	10.5
5	18.206	15 08 42.04273	+04 08 53.7321	227.175178	+04.148259	0.087	0.087	19.720	0.400	18.310	0.400	18.552	0.400	17.445	0.500	1986.6400	1986.6400	-9.1	4.4	10.7	4.4
6	25.801	15 08 41.59201	+04 08 57.3319	227.173300	+04.149259	0.133	0.133	20.000	0.400	19.420	0.400	19.556	0.400	19.033	0.500	1965.7300	1965.7300	-107.8	9.1	92.9	9.1

%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

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

%22h:m:s%22&%">\BegDIVclass='sort-down ' </A>string _DEJ2000
"d:m:s"CMC15

RA_ICRS
deg

DE_ICRS
deg

r'mag
mag

pflag

Nt

Jmag
mag

Hmag
mag

Ksmag
mag

1 5.72915 08 42.78288+04 08 47.4613150842.7+040847227.178262+04.14651716.699   214.875  13.382 %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 deg	Epoch 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	5.354	15 08 42.801352	+04 08 47.34425	471-148706	227.1783397	+04.1464461	2013.555	16.116	0.041	0.2	-10.2	14.875	13.848	13.382			17.039	16.180

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a