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	3.343	07 21 20.68536	+59 02 12.6708	1425-06904781	110.336189	+59.036853			16.5	15.5	1954.898
2	8.343	07 21 21.26736	+59 02 16.8720	1425-06904828	110.338614	+59.038020			18.3	17.6	1954.898

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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	3.798	07 21 20.74536	+59 02 13.2000	EO1291-0225528	110.336439	+59.037000	15.77		1	39.84	18.1	0.45	17.18		2	19.63	20.4	1.41
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Note: The construction of the GSC-II is still in progress: this version has no proper motions, and the magnitude limits are 18.5 in F (red) and 19.5 in J (blue). The data are copyrighted, check the data use Policy.

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	3.269	07 21 20.64936	+59 02 12.5160	N21130225029	110.336039	+59.036810	1998.963	15.42	0.40	15.74	0.37	3	5.12	0.11
2	9.414	07 21 21.38304	+59 02 17.6100	N211302210214	110.339096	+59.038225	1998.963	18.45	0.43	19.02	0.38	0	2.66	0.17

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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	3.289	07 21 21.01680	+59 02 12.1632	1490-0173744	110.337570	+59.036712	999	195	1983.5	28	90	3		19.49	20.19		15.33
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%203.289&%3cFONT%20COLOR=%27#CD5B45%27>07%2021%2021.01680&%3cFONT%20COLOR=%27#CD5B45%27>%2b59%2002%2012.1632&1490-0173744&110.337570&%2b59.036712&999&195&1983.5&%20%20%20%2028&%20%20%20%2090&3&%20&19.49&20.19&%20&15.33%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663ae3fd4636e&-out.add=.&-source=I/284/out&USNO-B1.0===1490-0173742&-out.orig=o' class='full'2 3.37207 21 20.67552+59 02 12.68161490-0173742110.336148+59.036856111 971980.9 0 0516.6814.8515.3114.7214.36 3 4.39907 21 20.79144+59 02 13.81201490-0173743110.336631+59.0371702827141975.4 0 0218.18  14.62     4 8.64907 21 21.29352+59 02 17.11321490-0173745110.338723+59.0380871171671980.9 0 0518.7017.6117.6217.4318.80 5 8.70107 21 19.76544+59 02 13.16041490-0173740110.332356+59.0369891239991997.8 0 02    20.73  18.61 %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	3.286	07 21 21.016656	+59 02 12.15996	1490-0179783	..	110.3375694	+59.0367111	B	28.0	121.0	90.0	7.1	20.190	B			19.490	e
2	3.371	07 21 20.675328	+59 02 12.68016	1490-0179781	YM	110.3361472	+59.0368556	B	0.0	0.0	0.0	0.0	18.310	Y	17.520	Y	14.720	B	16.161	15.195	14.980
3	4.397	07 21 20.791344	+59 02 13.80984	1490-0179782	..	110.3366306	+59.0371694	B	0.0	0.0	0.0	0.0	14.620	B
4	8.646	07 21 21.293328	+59 02 17.10996	1490-0179784	..	110.3387222	+59.0380861	B	0.0	0.0	0.0	0.0	17.620	B			17.430	B
5	8.701	07 21 19.765344	+59 02 13.16004	1490-0179779	..	110.3323556	+59.0369889	B	0.0	0.0	0.0	0.0	20.730	B

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

%22> _r
arcsec _RAJ2000
"h:m:s" _DEJ2000
"d:m:s"GSC2.3

RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 3.27207 21 20.64960+59 02 12.5196N7GQ005029110.336040+59.0368111998.96315.4215.7415.9115.663 5.12 0.11 2 9.41807 21 21.38328+59 02 17.6136N7GQ010214110.339097+59.0382261998.96318.4519.02  18.600 2.66 0.17 %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	2.702	07 21 20.80776	+59 02 12.1092	110.336699	+59.036697	-5.4	88.2				20.19	19.49		15.33	3	1
2	3.311	07 21 20.64336	+59 02 12.5448	110.336014	+59.036818	-3.7	-5.2	16.162	14.981	16.68	15.31	14.85	14.72	14.36	6	0
3	3.399	07 21 20.64792	+59 02 12.6492	110.336033	+59.036847	-24.0	-41.9	16.162	14.981	18.18	14.62				3	1
4	8.691	07 21 21.28704	+59 02 17.1852	110.338696	+59.038107	1.9	1.9			18.70	17.62	17.61	17.43	18.80	5	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	[****ClosingBrace(s)Inserted****]
">

mas/yr&%">\BegDIVclass='sort-down ' </A>decpmRAx
mas/yrpmDEx
mas/yrFmag
magBjmag
magVmag
magNmag
magJmag
mage_
magHmag
mage_
magKmag
mage_
mag2Mkey

Bmag
magRmag
magFld

dT
yrfg

fs

M

1 3.32507 21 20.63541+59 02 12.5376XPM 298-0353315110.335981+59.036816 -4.96 -4.26 -4.72 -3.9715.41915.74215.91015.66316.162 0.12915.195 0.10814.981 0.123 51569884316.515.5 8944.10776900M %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	2.702	07 21 20.80776	+59 02 12.1089	110.336699	+59.036697	0.163	0.133	20.190	0.400	19.490	0.400	19.651	0.400	19.039	0.500	1983.5800	1983.5800	-5.4	7.0	88.2	6.5
2	3.312	07 21 20.64331	+59 02 12.5453	110.336014	+59.036818	0.072	0.072	15.742	0.300	15.419	0.300	15.493	0.400	15.163	0.500	1990.2400	1990.2400	-3.7	4.1	-5.2	4.1
3	8.691	07 21 21.28704	+59 02 17.1849	110.338696	+59.038107	0.103	0.103	19.024	0.300	18.451	0.300	18.585	0.400	18.067	0.500	1980.9200	1980.9200	1.9	4.8	1.9	4.8

%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