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	17.258	06 43 34.24272	+74 09 57.7332	1575-02603119	100.892678	+74.166037			19.7	18.4	1954.099
2	18.455	06 43 39.77616	+74 10 16.4424	1575-02603383	100.915734	+74.171234			18.8	16.4	1953.113

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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 mag	Mflag
1	18.478	06 43 39.78336	+74 10 16.3812	EO0665-0027127	100.915764	+74.171217	16.65		-1	0.04	11.1	0.05	19.35		-1	0.47	7.6	2.71
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>18.478&%3cFONT%20COLOR=%27#CD5B45%27>06%2043%2039.78336&%3cFONT%20COLOR=%27#CD5B45%27>%2b74%2010%2016.3812&EO0665-0027127&100.915764&%2b74.171217&16.65&%20&-1&%20%20%200.04&%20%2011.1&%200.05&19.35&%20&-1&%20%20%200.47&%20%20%207.6&%20%202.71&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6640269e271327&-out.add=.&-source=I/267/out&APM-ID===EO0665-0027305&-out.orig=o' class='full'219.06006 43 34.21872+74 09 55.9008EO0665-0027305100.892578+74.16552818.05   1 8.16 10.5 0.4220.52   1 3.32 7.6 2.47   %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	17.530	06 43 39.56736	+74 10 15.5892	N21013331857	100.914864	+74.170997	1998.900	16.78	0.42	19.05	0.41	0	2.69	0.11
2	19.118	06 43 34.28640	+74 09 55.7784	N21013331811	100.892860	+74.165494	1998.900	17.74	0.43			3	3.15	0.39

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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	1.119	06 43 35.12352	+74 10 15.3300	1641-0053510	100.896348	+74.170925	66	359	1973.0	0	0	2	20.70		21.27
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%201.119&%3cFONT%20COLOR=%27#CD5B45%27>06%2043%2035.12352&%3cFONT%20COLOR=%27#CD5B45%27>%2b74%2010%2015.3300&1641-0053510&100.896348&%2b74.170925&%2066&359&1973.0&%20%20%20%20%200&%20%20%20%20%200&2&20.70&%20&21.27&%20&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6640269e271327&-out.add=.&-source=I/284/out&USNO-B1.0===1641-0053515&-out.orig=o' class='full'217.29006 43 39.50544+74 10 15.77281641-0053515100.914606+74.171048 851581978.8 -28 -26519.9016.7918.6916.6915.34 317.78806 43 34.33944+74 09 57.09241641-0053508100.893081+74.1658594169991954.0 0 0220.3518.30       419.08306 43 34.24680+74 09 55.85041641-0053507100.892695+74.165514153 751984.7 6 -164  18.2719.2017.3117.01 519.70506 43 34.45800+74 09 55.04041641-0053509100.893575+74.1652891891801972.5 0 02  18.3119.80     627.67706 43 36.43800+74 09 47.17081641-0053512100.901825+74.1631035211741967.4 214 -224319.7618.56    18.05 %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	1.120	06 43 35.123328	+74 10 15.33000	1641-0054285	..	100.8963472	+74.1709250	B	0.0	0.0	0.0	0.0	21.270	B
2	15.476	06 43 33.283128	+74 10 01.33608	1641-0054281	.M	100.8886797	+74.1670378	M	0.0	0.0	0.0	0.0							18.795	17.501	15.362
3	17.290	06 43 39.505344	+74 10 15.76992	1641-0054290	YM	100.9146056	+74.1710472	B	-28.0	2.0	-26.0	5.0	18.350	Y	17.390	Y	16.690	B	14.106	13.465	13.228
4	17.791	06 43 34.339344	+74 09 57.08988	1641-0054283	..	100.8930806	+74.1658583	B	0.0	0.0	0.0	0.0	20.350	o			18.300	e
5	19.084	06 43 34.246656	+74 09 55.85004	1641-0054282	.M	100.8926944	+74.1655139	B	6.0	6.0	-16.0	3.0	19.200	B			17.310	B	16.571	15.962	15.930
6	19.706	06 43 34.458000	+74 09 55.04004	1641-0054284	..	100.8935750	+74.1652889	B	0.0	0.0	0.0	0.0	19.800	B			18.310	e
7	27.678	06 43 36.438000	+74 09 47.17008	1641-0054287	..	100.9018250	+74.1631028	B	214.0	13.0	-224.0	4.0	19.760	o			18.560	e
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7	27.678	06 43 36.438000	+74 09 47.17008	1641-0054287	..	100.9018250	+74.1631028	B	214.0	13.0	-224.0	4.0	19.760	o			18.560	e

%22>\EndTABLESORT

Note: This version of the GSC-II has no proper motions, but the limits on brightness which existed on GSC2.2 (F<18.5, B_j<19.5) were removed.

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	1.050	06 43 35.15160	+74 10 15.3264	N77J001853	100.896465	+74.170924	1991.932		21.40			3	1.80	0.32
2	17.531	06 43 39.56760	+74 10 15.5892	N77J001857	100.914865	+74.170997	1998.900	16.78	19.05	17.69	15.26	0	2.69	0.11
3	19.118	06 43 34.28664	+74 09 55.7784	N77J001811	100.892861	+74.165494	1998.900	17.74	19.73	18.80	17.09	3	3.15	0.39
4	23.191	06 43 30.73920	+74 10 28.2648	N77J007747	100.878080	+74.174518	1995.105				19.02	3	1.49	0.40
5	26.885	06 43 36.30888	+74 09 47.8872	N77J007716	100.901287	+74.163302	1995.105				18.38	0	1.69	0.23

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

%27%29%22%20onMouseOut=%22laz%28%29%22>r1mag

%22>%5cFONT SIZE=-1magr2mag
magimag
magNo

fl

1 0.83206 43 35.13816+74 10 14.9916100.896409+74.170831 -0.7 -11.0    20.7021.27       2 0 217.47306 43 39.55296+74 10 15.6144100.914804+74.171004 -24.4 -28.214.10713.22919.9018.6916.7916.6915.34 6 0 318.78706 43 34.12104+74 09 56.2824100.892171+74.165634 -16.6 -26.116.57115.93120.35  18.30     3 0 419.13406 43 34.22256+74 09 55.8216100.892594+74.165506 0.8 -13.416.57115.931  19.2018.2717.3117.01 5 0 519.16606 43 34.25256+74 09 55.7604100.892719+74.165489 -22.4 20.016.57115.931  19.8018.31     3 1 627.95706 43 36.47280+74 09 46.9116100.901970+74.163031 218.4 -227.1    19.76  18.56  18.05 3 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	17.526	06 43 39.56543	+74 10 15.6468	XPM 328-0090563	100.914856	+74.171013	-13.23	-21.45	-12.66	-21.08	16.776	19.050	17.692	15.260	14.107	0.028	13.466	0.042	13.229	0.032	825283252	18.8	16.4	35	46.787178	0	0	M
2	18.761	06 43 34.11266	+74 09 56.3186	XPM 328-0090557	100.892136	+74.165644	-5.23	-27.25	-4.66	-26.88	17.738	19.731	18.801	17.087	16.571	0.142	15.963	0.177	15.931		825283242	19.7	18.4	34	45.800850	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 [****ClosingBrace(s)Inserted****]
">

%3cEM%3e%20%3cFONT%20COLOR=%27#CD5B45%27>_RAJ2000

%20

%22>%5cFONT SIZE=-1"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_
(...)

115.47506 43 33.28308+74 10 01.3371100.888680+74.167038 0.299 0.29922.440 0.50019.907 0.50019.918 0.40018.179 0.5001999.90001999.9000 0.0 0.0 0.0   217.47306 43 39.55296+74 10 15.6142100.914804+74.171004 0.063 0.06319.050 0.30016.776 0.30016.890 0.40015.275 0.5001991.95001991.9500 -24.4 3.9 -28.2 3.9 318.78706 43 34.12107+74 09 56.2821100.892171+74.165634 0.135 0.13520.350 0.40018.300 0.40018.477 0.40016.981 0.5001968.56001968.5600 -16.6 6.3 -26.1 6.3 419.13306 43 34.22253+74 09 55.8220100.892594+74.165506 0.104 0.10419.200 0.40017.310 0.40017.518 0.40016.114 0.5001987.59001987.5900 0.8 5.9 -13.4 5.9 519.16606 43 34.25251+74 09 55.7603100.892719+74.165489 0.135 0.13519.731 0.30017.738 0.30017.927 0.40016.464 0.5001981.16001981.1600 -22.4 6.6 20.0 6.6 627.95706 43 36.47278+74 09 46.9120100.901970+74.163031 0.133 0.13319.760 0.40018.560 0.40018.792 0.40017.826 0.5001967.44001967.4400 218.4 6.8 -227.1 6.8 %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	17.175	06 43 39.558766	+74 10 15.64377	821-056617	100.9145178	+74.1709211	2013.548	16.279	0.016	-22.5	-24.2	14.107	13.466	13.229
2	18.600	06 43 34.119684	+74 09 56.31192	821-056612	100.8923064	+74.1656781	2013.456	18.082	0.049	10.3	9.6	16.571	15.963	15.931

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