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	2.684	01 42 15.92280	+41 12 47.6424	1275-01011169	025.566345	+41.213234			18.0	17.5	1953.707
2	9.550	01 42 15.55680	+41 12 36.1332	1275-01011118	025.564820	+41.210037			19.7	18.4	1953.707

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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	2.604	01 42 15.94872	+41 12 47.4012	EO0824-0294196	025.566453	+41.213167	18.07		2	13.97	9.5	0.18	19.49		1	8.21	11.8	1.43
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%202.604&%3cFONT%20COLOR=%27#CD5B45%27>01%2042%2015.94872&%3cFONT%20COLOR=%27#CD5B45%27>%2b41%2012%2047.4012&EO0824-0294196&025.566453&%2b41.213167&18.07&%20&%202&%20%2013.97&%20%20%209.5&%200.18&19.49&%20&%201&%20%20%208.21&%20%2011.8&%20%201.43&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66397220358369&-out.add=.&-source=I/267/out&APM-ID===EO0824-0294374&-out.orig=o' class='full'2 9.41101 42 15.60480+41 12 36.1116EO0824-0294374025.565020+41.21003118.91   1 6.55 7.1 0.2421.00  -1 0.00 5.8 2.10   %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	2.567	01 42 15.91008	+41 12 47.5740	N330302219037	025.566292	+41.213215	1989.768	17.57	0.42	18.05	0.43	3	4.65	0.29
2	9.616	01 42 15.53832	+41 12 36.1368	N330302219001	025.564743	+41.210038	1989.768	18.32	0.42			3	3.06	0.04

%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	2.578	01 42 15.90408	+41 12 47.6100	1312-0030037	025.566267	+41.213225	150	44	1977.1	0	0	5	18.34	18.20	17.51	17.21	17.11
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%202.578&%3cFONT%20COLOR=%27#CD5B45%27>01%2042%2015.90408&%3cFONT%20COLOR=%27#CD5B45%27>%2b41%2012%2047.6100&1312-0030037&025.566267&%2b41.213225&150&%2044&1977.1&%20%20%20%20%200&%20%20%20%20%200&5&18.34&18.20&17.51&17.21&17.11%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66397220358369&-out.add=.&-source=I/284/out&USNO-B1.0===1312-0030038&-out.orig=o' class='full'2 3.60701 42 15.91152+41 12 41.69161312-0030038025.566298+41.2115819999991965.7 34 -116320.1917.69  19.16   3 4.37201 42 16.01808+41 12 41.36041312-0030039025.566742+41.2114891617401971.7 0 02  19.64  20.04   4 9.51801 42 15.53808+41 12 36.24121312-0030033025.564742+41.210067121 691977.1 0 0520.1618.6519.4718.2117.60 %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	2.577	01 42 15.904008	+41 12 47.61000	1312-0032309	..	025.5662667	+41.2132250	B	0.0	0.0	0.0	0.0	17.510	B			17.210	B
2	3.608	01 42 15.911328	+41 12 41.69016	1312-0032310	..	025.5662972	+41.2115806	B	34.0	99.0	-116.0	32.0	20.190	o			19.160	B
3	4.372	01 42 16.018008	+41 12 41.36004	1312-0032311	..	025.5667417	+41.2114889	B	0.0	0.0	0.0	0.0					20.040	B
4	9.520	01 42 15.538008	+41 12 36.24012	1312-0032305	YM	025.5647417	+41.2100667	B	0.0	0.0	0.0	0.0	18.350	Y	17.810	Y	18.210	B	16.949	15.955	15.631

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Full	_r arcsec	_RAJ2000 [****ClosingBrace(s)Inserted****]
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%3cEM%3e%20%3cFONT%20COLOR=%27#CD5B45%27>_RAJ2000

%22>%5cFONT SIZE=-1"h:m:s" _DEJ2000
"d:m:s"GSC2.3

RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 2.56801 42 15.91032+41 12 47.5740NC0A019037025.566293+41.2132151989.76817.5718.0518.5717.373 4.65 0.29 2 5.57101 42 16.06032+41 12 40.2552NC0A019010025.566918+41.2111821989.76819.79      3 2.07 0.13 3 9.61601 42 15.53832+41 12 36.1368NC0A019001025.564743+41.2100381989.76818.3219.6618.6817.753 3.06 0.04 %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	2.424	01 42 15.90720	+41 12 47.4336	025.566280	+41.213176	2.6	2.5			18.34	17.51	18.20	17.21	17.11	5	0
2	3.989	01 42 15.94368	+41 12 41.4036	025.566432	+41.211501	61.7	-123.0			20.19		17.69	19.16		3	1
3	4.778	01 42 16.02816	+41 12 40.9608	025.566784	+41.211378	3.3	-18.1					19.64	20.04		2	0
4	9.739	01 42 15.53016	+41 12 36.0396	025.564709	+41.210011	-3.3	-2.4	16.950	15.631	20.16	19.47	18.65	18.21	17.60	6	0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID	RAICRS deg	DEICRS deg	pmRAp mas/yr	pmDEp mas/yr	pmRAx [****ClosingBrace(s)Inserted****]
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pmRAx

%20

%22>%5cFONT SIZE=-1mas/yrpmDEx
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 9.90201 42 15.52128+41 12 35.9027XPM 262-0040301025.564672+41.209973 -6.07 0.00 -6.03 0.4118.32419.66118.68017.74516.950 0.18915.955 0.16215.631 0.201 38814868919.718.4 19645.12954300M %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	2.425	01 42 15.90717	+41 12 47.4341	025.566280	+41.213176	0.103	0.103	18.045	0.300	17.568	0.300	17.680	0.400	17.234	0.500	1977.1400	1977.1400	2.6	5.3	2.5	5.3
2	3.988	01 42 15.94368	+41 12 41.4040	025.566432	+41.211501	0.163	0.133	20.190	0.400	19.160	0.400	19.375	0.400	18.526	0.500	1965.7200	1965.7200	61.7	8.6	-123.0	7.8
3	9.738	01 42 15.53015	+41 12 36.0400	025.564709	+41.210011	0.091	0.091	19.661	0.300	18.324	0.300	18.564	0.400	17.506	0.500	1981.8800	1981.8800	-3.3	4.7	-2.4	4.7

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	URAT1	RAICRS deg	DEICRS deg	Epoch yr	f.mag [****ClosingBrace(s)Inserted****]
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f.mag

%20

%22>%5cFONT SIZE=-1mage_
mag

pmRA
mas/yr

pmDE
mas/yr

Jmag
mag

Hmag
mag

Kmag
mag

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mag

Vmag
mag

gmag
mag

rmag
mag

imag
mag

1 2.22301 42 15.900450+41 12 47.24718657-025541025.5662519+41.21312422013.26618.188 0.030                     2 9.72101 42 15.523253+41 12 35.89985657-025537025.5647382+41.21000832012.75618.673 0.060 12.3 10.216.95015.95515.631           %0a%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	e_ mas	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Dup	FG e-/s	e_ e-/s	Gmag mag	e_ mag	FBP e-/s	e_ e-/s	BPmag mag	e_ mag	FRP e-/s	e_ e-/s	RPmag mag	e_ mag	BP-RP mag	RV km/s	e_ km/s	Teff K	AG mag	E(BP-RP) mag	Rad solRad	[****ClosingBrace(s)Inserted****]
solRad
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</A>
decLum solLum
1	9.740	01 42 15.5342744010	+41 12 36.021283470	025.56472614334	6.2381	+41.21000591208	5.3490	347266625781199360							0	1.1093e+02	1.8238e+00	20.5757	0.0178

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