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	2.203	16 38 53.85552	+58 35 26.3004	1425-08574247	249.724398	+58.590639			15.0	15.7	1955.320
2	2.214	16 38 53.63352	+58 35 24.4932	1425-08574233	249.723473	+58.590137			18.0	18.4	1955.320
3	17.672	16 38 52.01016	+58 35 13.9308	1425-08574123	249.716709	+58.587203			19.5	17.6	1955.320

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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 2.07916 38 53.84136+58 35 26.4012EO1414-0299658249.724339+58.59066715.47   1 36.48 15.9 0.1215.39   1 39.81 21.1 -0.08   214.31916 38 53.28408+58 35 12.5304EO1414-0300033249.722017+58.58681419.25   2 1.51 5.8 0.4922.24L 0     2.99   317.89116 38 51.98544+58 35 13.8120EO1414-0299973249.716606+58.58717016.82  -1 2.40 8.4 0.1420.60  -1 1.04 6.2 3.78   420.73816 38 51.30336+58 35 37.3416EO1414-0299330249.713764+58.59370620.00L 0      18.87  -1 0.96 8.1 -1.13   %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	2.542	16 38 53.90232	+58 35 26.5200	N11230111097	249.724593	+58.590700	1996.517	14.94	0.42	15.19	0.43	3	7.24	0.09
2	16.101	16 38 52.09344	+58 35 15.5004	N11230111067	249.717056	+58.587639	1996.517	17.42	0.42			0	2.75	0.06

%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	2.470	16 38 53.89344	+58 35 26.6100	1485-0234429	249.724556	+58.590725	66	72	1979.3	8	2	5	15.38	15.48	14.03	14.54	16.50
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%202.470&%3cFONT%20COLOR=%27#CD5B45%27>16%2038%2053.89344&%3cFONT%20COLOR=%27#CD5B45%27>%2b58%2035%2026.6100&1485-0234429&249.724556&%2b58.590725&%2066&%2072&1979.3&%20%20%20%20%208&%20%20%20%20%202&5&15.38&15.48&14.03&14.54&16.50%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6639c9fd1d2bc8&-out.add=.&-source=I/284/out&USNO-B1.0===1485-0234430&-out.orig=o' class='full'2 3.39916 38 53.98944+58 35 25.57321485-0234430249.724956+58.5904378968801955.3 0 0219.4416.23       3 5.30616 38 53.87016+58 35 31.45201485-0234428249.724459+58.5920707885601969.0 24 120318.2817.27  19.31   4 5.83116 38 53.14344+58 35 21.92281485-0234425249.721431+58.5894237207681969.0 -82 -64318.8818.70  19.97   5 6.76416 38 52.82208+58 35 29.96161485-0234424249.720092+58.5916569999991975.9 0 0220.24    19.27   6 7.71016 38 54.50352+58 35 29.32081485-0234434249.727098+58.5914781699991973.7 0 0220.19  20.96     7 8.24616 38 54.34080+58 35 20.97241485-0234432249.726420+58.5891599996291975.9 0 02  19.75  20.16   812.92416 38 53.24616+58 35 14.00281485-0234426249.721859+58.587223 10 441981.3 -20 -24320.47  20.5020.23   915.68516 38 52.10016+58 35 16.05121485-0234421249.717084+58.5877921181671979.3 20 40520.4017.6919.7617.4316.19 1018.05816 38 51.90816+58 35 14.18281485-0234420249.716284+58.5872735312701975.9 0 02  17.76  20.04   %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	2.469	16 38 53.893344	+58 35 26.61000	1485-0241425	..	249.7245556	+58.5907250	B	8.0	2.0	2.0	2.0	14.030	B			14.540	B
2	3.400	16 38 53.989344	+58 35 25.56996	1485-0241426	..	249.7249556	+58.5904361	B	0.0	0.0	0.0	0.0	19.440	o			16.230	e
3	5.304	16 38 53.869992	+58 35 31.44984	1485-0241424	..	249.7244583	+58.5920694	B	24.0	21.0	120.0	15.0	18.280	o			19.310	B
4	5.834	16 38 53.143344	+58 35 21.91992	1485-0241421	..	249.7214306	+58.5894222	B	-82.0	19.0	-64.0	21.0	18.880	o			19.970	B
5	6.764	16 38 52.822008	+58 35 29.96016	1485-0241420	..	249.7200917	+58.5916556	B	0.0	0.0	0.0	0.0	20.240	o			19.270	B
6	7.709	16 38 54.503328	+58 35 29.32008	1485-0241430	..	249.7270972	+58.5914778	B	0.0	0.0	0.0	0.0	20.960	B
[****ClosingBrace(s)Inserted****]
6	7.709	16 38 54.503328	+58 35 29.32008	1485-0241430	..	249.7270972	+58.5914778	B	0.0	0.0	0.0	0.0	20.960	B

%22>\Ahref='VizieR-5?-ref=VIZ6639c9fd1d2bc8&-out.add=.&-source=I/297/out&NOMAD1===1485-0241428' class='full'7 8.24716 38 54.340656+58 35 20.969881485-0241428..249.7264194+58.5891583B 0.0 0.0 0.0 0.0        20.160B         812.92716 38 53.245992+58 35 13.999921485-0241422..249.7218583+58.5872222B -20.0 0.0 -24.0 1.020.500B    20.230B         915.68716 38 52.099992+58 35 16.050121485-0241417YM249.7170833+58.5877917B 20.0 4.0 40.0 5.018.350Y    17.430B15.02514.36414.182   1018.06116 38 51.907992+58 35 14.179921485-0241416..249.7162833+58.5872722B 0.0 0.0 0.0 0.0        20.040B         %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	2.544	16 38 53.90256	+58 35 26.5236	N4HX001097	249.724594	+58.590701	1996.517	14.94	15.19	17.06	16.82	3	7.24	0.09
2	13.139	16 38 53.26992	+58 35 13.7472	N4HX001065	249.721958	+58.587152	1996.517	19.57	21.11			3	2.00	0.15
3	16.097	16 38 52.09368	+58 35 15.5040	N4HX001067	249.717057	+58.587640	1996.517	17.42	20.18	18.27	16.35	0	2.75	0.06

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

mag&%">\BegDIVclass='sort-down ' </A>decNo

fl

1 2.49016 38 53.89512+58 35 26.4696249.724563+58.590686 4.4 1.3    15.3814.0315.4814.5416.50 5 0 2 5.18616 38 53.88288+58 35 31.2684249.724512+58.592019 27.1 114.7    18.28  17.2719.31   3 0 3 5.93516 38 53.15592+58 35 21.7284249.721483+58.589369 -79.6 -70.9    18.88  18.7019.97   3 0 4 8.10616 38 54.37392+58 35 21.4728249.726558+58.589298 48.8 13.9        19.7520.16   2 0 5 8.79816 38 54.47976+58 35 31.9236249.726999+58.592201 -9.0 61.3    20.1920.96       2 0 610.33616 38 52.41168+58 35 31.5384249.718382+58.592094 -76.7 38.3    20.24    19.27   2 0 713.07316 38 53.25216+58 35 13.8408249.721884+58.587178 -23.7 -24.5    20.4720.50  20.23   3 0 815.75216 38 52.10472+58 35 15.9144249.717103+58.587754 19.5 38.815.02514.18320.4019.7617.6917.4316.19 6 0 918.33816 38 51.84456+58 35 14.3052249.716019+58.587307 -16.0 5.4        17.7620.04   2 0 %0a%0a

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	15.734	16 38 52.10712	+58 35 15.9217	XPM 297-0408227	249.717113	+58.587756	20.13	37.02	20.12	37.43	17.421	20.178	18.271	16.352	15.025	0.042	14.364	0.046	14.183	0.066	638644383	19.5	17.6	102	44.033810	0	0	M

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

%22d:m:s%22&%">\BegDIVclass='sort-down ' </A>decRAJ2000
degDEJ2000
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 2.49016 38 53.89515+58 35 26.4699249.724563+58.590686 0.103 0.10315.189 0.30014.943 0.30014.996 0.40014.726 0.5001979.36001979.3600 4.4 5.2 1.3 5.2 2 5.18516 38 53.88285+58 35 31.2678249.724512+58.592019 0.133 0.13318.280 0.40019.310 0.40018.990 0.40019.710 0.5001969.05001969.0500 27.1 6.8 114.7 6.8 3 5.93516 38 53.15592+58 35 21.7282249.721483+58.589369 0.133 0.13318.880 0.40019.970 0.40019.634 0.40020.400 0.5001969.05001969.0500 -79.6 6.8 -70.9 6.8 410.33616 38 52.41165+58 35 31.5382249.718382+58.592094 0.163 0.16320.240 0.40019.270 0.40019.477 0.40018.671 0.5001975.92001975.9200 -76.7 7.9 38.3 7.9 513.07316 38 53.25216+58 35 13.8412249.721884+58.587178 0.133 0.13321.113 0.30019.570 0.30019.811 0.40018.618 0.5001981.37001981.3700 -23.7 7.2 -24.5 7.2 615.75316 38 52.10472+58 35 15.9140249.717103+58.587754 0.065 0.06520.178 0.30017.421 0.30017.314 0.40015.479 0.5001991.40001991.4000 19.5 4.1 38.8 4.1 %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	15.348	16 38 52.105765	+58 35 15.90997	743-245499	249.7171558	+58.5878900	2013.177	17.263	0.021	6.9	37.5	15.025	14.364	14.183

%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 mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Nobs	Dt yr	[****ClosingBrace(s)Inserted****]
">

yr&%">\BegDIVclass='sort-down ' </A>decRmag
magBmag
mag

Nmag
mag

Vmag
mag

Jmag
mag

Hmag
mag

Kmag
mag

1 2.36716 38 53.880329+58 35 26.66109249.7245014 91.00+58.5907392 51.0054981+00010974 5.5 2.8 -0.5 1.6 441.195 14.943 15.189 16.819 17.062       212.84916 38 53.276052+58 35 14.03303249.7219836 202.00+58.5872314 16.0054981+00010653 1.3 7.7 13.2 0.6 341.195 19.570 21.113           315.87616 38 52.089787+58 35 15.85779249.7170408 55.00+58.5877383 93.0054981+00010670 20.9 2.0 16.6 3.5 642.049 17.421 20.178 16.352 18.271 15.025 14.364 14.183 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	e_ mas	DE_ICRS deg	e_ mas	Source	Plx mas	pmRA mas/yr	pmDE mas/yr	RADEcor	Dup	<FG> e-/s	e_ e-/s	<Gmag> mag	Var
1	15.344	16 38 52.119832346	+58 35 16.38982799	249.7171659681	0.221	+58.5878860633	0.549	1431878771488694528				-0.532	0	1.6700e+03	4.6238e+00	17.468	NOT_AVAILABLE

%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