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	0.394	12 41 16.58952	+69 40 22.3212	1575-03277600	190.319123	+69.672867			18.4	18.2	1955.311
2	3.490	12 41 16.52880	+69 40 19.1604	1575-03277597	190.318870	+69.671989			16.7	16.6	1955.311

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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	2.961	12 41 16.44216	+69 40 19.7400	EO1411-0165597	190.318509	+69.672150	16.54		1	17.17	16.0	0.56	17.15		1	9.93	20.1	0.61
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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	3.124	12 41 16.52448	+69 40 19.5276	N11320314347	190.318852	+69.672091	1997.111	16.29	0.39	17.21	0.37	3	6.64	0.59

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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	1.828	12 41 16.67016	+69 40 24.3624	1596-0116007	190.319459	+69.673434	647	30	1977.3	0	0	2		19.54			18.71
2	2.116	12 41 16.51008	+69 40 20.5428	1596-0116006	190.318792	+69.672373	221	522	1969.2	-6	-44	3	18.69	18.54			16.83
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%202.116&%3cFONT%20COLOR=%27#CD5B45%27>12%2041%2016.51008&%3cFONT%20COLOR=%27#CD5B45%27>%2b69%2040%2020.5428&1596-0116006&190.318792&%2b69.672373&221&522&1969.2&%20%20%20%20-6&%20%20%20-44&3&18.69&18.54&%20&%20&16.83%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663f7e7d158335&-out.add=.&-source=I/284/out&USNO-B1.0===1596-0116005&-out.orig=o' class='full'3 2.99612 41 16.50600+69 40 19.66081596-0116005190.318775+69.672128 891221980.0 4 10517.5416.9216.7816.0516.45 4 4.81012 41 16.42488+69 40 17.88241596-0116004190.318437+69.6716341304901976.1 0 0217.83      16.69 5 9.58112 41 16.11936+69 40 13.33201596-0116003190.317164+69.6703705029741976.6 0 02  19.30  19.82   %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	1.825	12 41 16.669992	+69 40 24.35988	1596-0117883	..	190.3194583	+69.6734333	B	0.0	0.0	0.0	0.0					19.540	e
2	2.119	12 41 16.510008	+69 40 20.53992	1596-0117882	..	190.3187917	+69.6723722	B	-6.0	6.0	-44.0	14.0	18.690	o			18.540	e
3	2.997	12 41 16.506000	+69 40 19.66008	1596-0117881	..	190.3187750	+69.6721278	B	4.0	3.0	10.0	4.0	16.780	B			16.050	B
4	4.812	12 41 16.424664	+69 40 17.87988	1596-0117880	Y.	190.3184361	+69.6716333	B	0.0	0.0	0.0	0.0	17.830	o	17.780	Y
5	9.583	12 41 16.119336	+69 40 13.32984	1596-0117879	..	190.3171639	+69.6703694	B	0.0	0.0	0.0	0.0					19.820	B

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

RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 3.12012 41 16.52472+69 40 19.5312N4NH004347190.318853+69.6720921997.11116.2917.2117.5216.723 6.64 0.59 2 5.69212 41 17.61576+69 40 23.8440N4NH006554190.323399+69.6732901997.11120.37      3 1.52 0.43 %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	1.623	12 41 16.67736	+69 40 24.1248	190.319489	+69.673368	9.7	-2.2					19.54		18.71	2	0
2	2.318	12 41 16.51512	+69 40 20.3376	190.318813	+69.672316	-9.3	-48.4			18.69		18.54		16.83	3	0
3	3.139	12 41 16.50792	+69 40 19.5168	190.318783	+69.672088	0.2	10.5			17.54	16.78	16.92	16.05	16.45	5	0
4	4.497	12 41 16.40208	+69 40 18.2172	190.318342	+69.671727	-8.1	11.6			17.83				16.69	2	0
5	9.968	12 41 16.02648	+69 40 13.0584	190.316777	+69.670294	-16.4	-24.1					19.30	19.82		2	0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 [****ClosingBrace(s)Inserted****]
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e_RAJ2000

%20

%22>%5cFONT SIZE=-1(...)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 2.31812 41 16.51514+69 40 20.3379190.318813+69.672316 0.133 0.13318.690 0.40018.540 0.40018.567 0.40018.370 0.5001969.22001969.2200 -9.3 6.7 -48.4 6.7 2 3.13912 41 16.50793+69 40 19.5173190.318783+69.672088 0.103 0.10317.213 0.30016.287 0.30016.487 0.40015.712 0.5001980.08001980.0800 0.2 5.1 10.5 5.1 %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	3.417	12 41 16.482611	+69 40 19.24889	799-103879	190.3186775	+69.6720136	2014.025	17.527	0.030								17.663	17.639

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