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	3.291	07 53 55.63344	+18 05 54.6432	1050-05462024	118.481806	+18.098512			15.7	14.8	1955.944
2	3.851	07 53 55.41672	+18 05 56.7924	1050-05461986	118.480903	+18.099109			18.2	17.9	1955.944
3	6.933	07 53 55.82136	+18 05 51.2628	1050-05462048	118.482589	+18.097573			18.7	17.7	1955.944
4	8.660	07 53 56.05488	+18 05 51.1116	1050-05462084	118.483562	+18.097531			18.6	18.7	1955.944

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

bStel

%22>bDiam
arcsecb-r
magMflag

1 3.32707 53 55.61616+18 05 54.6612EO1507-0157053118.481734+18.09851715.21   1 33.71 20.4 0.3617.08   1 21.96 27.0 1.87   %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	3.703	07 53 55.60056	+18 05 54.3336	N221132212660	118.481669	+18.098426	1998.004	14.00	0.43	14.27	0.42	3	10.11	0.42

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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	2.340	07 53 55.51872	+18 05 58.5528	1080-0189054	118.481328	+18.099598	567	865	1984.2	0	0	3		18.07		17.56	17.92
2	2.696	07 53 55.63008	+18 05 55.2624	1080-0189057	118.481792	+18.098684	503	444	1977.4	0	0	2	19.16				14.28
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%202.696&%3cFONT%20COLOR=%27#CD5B45%27>07%2053%2055.63008&%3cFONT%20COLOR=%27#CD5B45%27>%2b18%2005%2055.2624&1080-0189057&118.481792&%2b18.098684&503&444&1977.4&%20%20%20%20%200&%20%20%20%20%200&2&19.16&%20&%20&%20&14.28%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663837b93523ef&-out.add=.&-source=I/284/out&USNO-B1.0===1081-0187255&-out.orig=o' class='full'3 2.92207 53 55.57272+18 06 00.40321081-0187255118.481553+18.1001129999991977.4 0 02  18.48    18.37 4 3.50807 53 55.60872+18 05 54.50281080-0189055118.481703+18.0984731301201950.0 0 0516.2915.0112.6013.6514.76 5 4.87207 53 55.33416+18 05 57.81121080-0189052118.480559+18.0993922363121950.0 0 0518.9318.7816.7016.8217.68 6 6.36207 53 55.24680+18 05 56.13001080-0189049118.480195+18.0989254329991976.5 0 02  18.91  17.77   7 7.14007 53 55.83336+18 05 51.10081080-0189059118.482639+18.0975282284891987.5 28 -164  17.6217.8117.2417.67 8 8.24107 53 55.19736+18 06 02.50201081-0187251118.479989+18.1006953319991969.9 -56 46319.8318.76  19.12   9 8.44807 53 55.96080+18 05 50.47081080-0189061118.483170+18.0973534074131950.0 0 0519.3319.0015.5317.4217.43 10 9.03607 53 55.06608+18 06 00.34201081-0187250118.479442+18.1000958109991983.0 184 -288320.66  19.9017.86   11 9.64507 53 55.93872+18 05 48.99121080-0189060118.483078+18.0969429992091987.5 38 -38419.48  17.8618.2817.81 %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	2.339	07 53 55.518672	+18 05 58.54992	1080-0191868	..	118.4813278	+18.0995972	B	0.0	0.0	0.0	0.0					17.560	B
2	2.698	07 53 55.630008	+18 05 55.25988	1080-0191871	..	118.4817917	+18.0986833	B	0.0	0.0	0.0	0.0	19.160	o
3	2.920	07 53 55.572672	+18 06 00.39996	1081-0190176	..	118.4815528	+18.1001111	B	0.0	0.0	0.0	0.0					18.480	e
4	3.511	07 53 55.608672	+18 05 54.49992	1080-0191869	YM	118.4817028	+18.0984722	B	0.0	0.0	0.0	0.0	17.380	Y	17.630	Y	13.650	B	15.824	15.198	14.833
5	4.874	07 53 55.333992	+18 05 57.81012	1080-0191866	..	118.4805583	+18.0993917	B	0.0	0.0	0.0	0.0	16.700	B			16.820	B
6	6.364	07 53 55.246656	+18 05 56.13000	1080-0191863	..	118.4801944	+18.0989250	B	0.0	0.0	0.0	0.0					17.770	B
7	7.140	07 53 55.833336	+18 05 51.10008	1080-0191873	..	118.4826389	+18.0975278	B	28.0	10.0	-16.0	22.0	17.810	B			17.240	B
[****ClosingBrace(s)Inserted****]
7	7.140	07 53 55.833336	+18 05 51.10008	1080-0191873	..	118.4826389	+18.0975278	B	28.0	10.0	-16.0	22.0	17.810	B			17.240	B

%22>\Ahref='VizieR-5?-ref=VIZ663837b93523ef&-out.add=.&-source=I/297/out&NOMAD1===1081-0190172' class='full'8 8.24107 53 55.197336+18 06 02.499841081-0190172..118.4799889+18.1006944B -56.0 9.0 46.0 51.019.830o    19.120B         9 8.44807 53 55.960656+18 05 50.470081080-0191875..118.4831694+18.0973528B 0.0 0.0 0.0 0.015.530B    17.420B         10 9.03707 53 55.066008+18 06 00.339841081-0190171..118.4794417+18.1000944B 184.0 31.0 -288.0 64.019.900B    17.860B         11 9.64607 53 55.938672+18 05 48.990121080-0191874..118.4830778+18.0969417B 38.0 48.0 -38.0 9.017.860B    18.280B         %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	3.699	07 53 55.60080	+18 05 54.3372	N86Y012660	118.481670	+18.098427	1998.004	14.00	14.27	15.66	14.95	3	10.11	0.42

%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	2.611	07 53 55.50696	+18 05 58.8876	118.481279	+18.099691	-2.7	4.9					18.07	17.56	17.92	3	1
[****ClosingBrace(s)Inserted****]
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%202.611&%3cFONT%20COLOR=%27#CD5B45%27>07%2053%2055.50696&%3cFONT%20COLOR=%27#CD5B45%27>%2b18%2005%2058.8876&118.481279&%2b18.099691&%20%20%20%20-2.7&%20%20%20%20%204.9&%20&%20&%20&%20&18.07&17.56&17.92&%203&%201%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663837b93523ef&-out.add=.&-source=I/317/sample&PPMXL===3281920679411081777' class='full'2 3.68907 53 55.58160+18 06 01.3140118.481590+18.100365 22.0 17.7        18.48  18.37 2 0 3 3.75307 53 55.60272+18 05 54.2724118.481678+18.098409 -5.7 -7.415.82514.83416.2912.6015.0113.6514.76 6 0 4 3.76007 53 55.59864+18 05 54.2832118.481661+18.098412 -15.5 -33.215.82514.83419.16      14.28 3 1 5 4.95207 53 55.32864+18 05 57.9876118.480536+18.099441 -2.8 0.6    18.9316.7018.7816.8217.68 5 0 6 6.54707 53 55.22040+18 05 57.0444118.480085+18.099179 -13.2 17.7        18.9117.77   2 0 7 7.14707 53 55.83336+18 05 51.0936118.482639+18.097526 23.3 -19.3      17.8117.6217.2417.67 4 0 8 8.00207 53 55.20432+18 06 02.2176118.480018+18.100616 -56.2 22.3    19.83  18.7619.12   3 1 9 8.23507 53 55.93032+18 05 50.4852118.483043+18.097357 -14.1 -13.8    19.3315.5319.0017.4217.43 5 0 10 9.49307 53 55.04592+18 06 00.9540118.479358+18.100265 172.6 -278.1    20.6619.90  17.86   3 1 11 9.62507 53 55.91064+18 05 48.8544118.482961+18.096904 23.9 -44.5    19.4817.86  18.2817.81 4 1 %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	3.881	07 53 55.61062	+18 05 54.1104	XPM 216-0266113	118.481711	+18.098364	72.19	-52.38	72.27	-52.18	14.004	14.269	15.657	14.947	15.825	0.100	15.198	0.112	14.834	0.125	140518538	18.2	17.9	424	41.982090	0	0	M

%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"	[****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 3.61607 53 55.60123+18 05 54.4224118.481672+18.098451 0.007 0.00814.269 0.30014.004 0.30015.636 0.08014.604 0.1102003.97002003.9700 -15.5 5.9 -33.2 5.9 2 3.75407 53 55.60272+18 05 54.2722118.481678+18.098409 0.070 0.07012.600 0.40013.650 0.40013.324 0.40014.061 0.5001990.19001990.1900 -5.7 4.3 -7.4 4.3 3 4.95207 53 55.32864+18 05 57.9878118.480536+18.099441 0.103 0.10316.700 0.40016.820 0.40016.769 0.40016.780 0.5001981.43001981.4300 -2.8 4.9 0.6 4.9 4 7.14607 53 55.83332+18 05 51.0939118.482639+18.097526 0.115 0.11517.810 0.40017.240 0.40017.373 0.40016.858 0.5001987.51001987.5100 23.3 6.3 -19.3 6.3 5 8.00207 53 55.20435+18 06 02.2180118.480018+18.100616 0.133 0.13319.830 0.40019.120 0.40019.283 0.40018.664 0.5001969.96001969.9600 -56.2 6.7 22.3 6.7 6 8.23607 53 55.93037+18 05 50.4849118.483043+18.097357 0.103 0.10315.530 0.40017.420 0.40016.933 0.40018.290 0.5001981.43001981.4300 -14.1 4.9 -13.8 4.9 7 9.49307 53 55.04597+18 06 00.9541118.479358+18.100265 0.133 0.16319.900 0.40017.860 0.40018.039 0.40016.550 0.5001983.01001983.0100 172.6 6.9 -278.1 7.5 8 9.62507 53 55.91068+18 05 48.8541118.482961+18.096904 0.133 0.11517.860 0.40018.280 0.40018.138 0.40018.384 0.5001987.51001987.5100 23.9 6.6 -44.5 6.3 %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	3.679	07 53 55.599848	+18 05 54.23857	541-147451	118.4816546	+18.0984375	2013.917	16.765	0.036	-2.8	9.8	15.825	15.198	14.834	17.505	16.763	17.104	16.515	16.214

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

e-/s&%">\BegDIVclass='sort-down ' </A>dece_
e-/s<Gmag>
mag

Var

1 3.74307 53 55.597138261+18 05 54.30693953118.4816547428 4.745+18.0984185943 2.640 668439710336997504      -0.3861 2.8099e+02 4.0567e+0019.403NOT_AVAILABLE %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	ipix	comp	pmRA mas/yr	pmDE mas/yr	Jmag mag	Hmag mag	Kmag mag	B1mag mag	B2mag mag	R1mag mag	R2mag mag	Imag mag	GaiaId	Gmag mag	Clone	Nosc
1	3.469	07 53 55.606308936	+18 05 54.55408056	118.4816929539	+18.0984872446	3281920679592292759		-8.730	-16.486	15.825	15.198	14.834	19.16				14.28	668439710336997504	19.403	1
2	3.672	07 53 55.602924528	+18 05 54.35647404	118.4816788522	+18.0984323539	3281920656681331753		-5.501	-3.306	15.825	15.198	14.834	16.29	12.60	15.01	13.65	14.76	668439710336997504	19.403	1

%0a%0a