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	4.271	00 37 37.26288	-34 29 49.7508	0525-00239962	009.405262	-34.497153			19.5	17.6	1983.308
2	6.936	00 37 37.16880	-34 29 56.7420	0525-00239953	009.404870	-34.499095			17.0	17.6	1986.675

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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	7.017	00 37 37.15008	-34 29 56.6196	S0013223853	009.404792	-34.499061	1996.757	17.18	0.42	17.47	0.35	3	6.26	0.47

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">  _r
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mas/yrpmDE
mas/yrNdet

B1mag
magR1mag
magB2mag
magR2mag
magImag
mag 1 3.91200 37 37.31472-34 29 49.43040555-0005989009.405478-34.4970648352801987.7 0 03  19.5420.5719.72   2 5.87100 37 37.23816-34 29 56.09040555-0005988009.405159-34.498914191 631988.7 32 204  16.9717.1716.7918.55 313.92800 37 37.03536-34 30 04.12200554-0005586009.404314-34.5011452129991984.7 -140 -5563    18.6718.1617.71 %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	3.913	00 37 37.314672	-34 29 49.43004	0555-0006020	..	009.4054778	-34.4970639	B	0.0	0.0	0.0	0.0	20.570	B			19.720	B
2	5.873	00 37 37.237992	-34 29 56.09004	0555-0006019	Y.	009.4051583	-34.4989139	B	32.0	14.0	20.0	4.0	18.380	Y			16.790	B
3	13.926	00 37 37.035336	-34 30 04.11984	0554-0005621	..	009.4043139	-34.5011444	B	-140.0	13.0	-556.0	110.0	18.670	B			18.160	B

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3 [****ClosingBrace(s)Inserted****]
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GSC2.3

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%22>RAJ2000
deg

DEJ2000
deg

Epoch
yr

Fmag
mag

jmag
mag

Vmag
mag

Nmag
mag

Class

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pix

e

1 7.01000 37 37.15032-34 29 56.6124S0DN000853009.404793-34.4990591996.75717.1816.45  18.143 6.26 0.47 218.95700 37 37.01280-34 30 09.5148S0DN007385009.404220-34.5026431978.815  22.05    3 2.17 0.64 %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	3.925	00 37 37.29312	-34 29 49.7976	009.405388	-34.497166	13.7	-11.2				20.57	19.54	19.72		3	0
2	6.253	00 37 37.23360	-34 29 56.5548	009.405140	-34.499043	32.2	8.8				17.17	16.97	16.79	18.55	4	0

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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_ [****ClosingBrace(s)Inserted****]
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e_

%20

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

e_
mag

alphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 3.92400 37 37.29315-34 29 49.7982009.405388-34.497166 0.133 0.13320.570 0.40019.720 0.40019.908 0.40019.188 0.5001987.78001987.7800 13.7 18.1 -11.2 18.1 2 6.25400 37 37.23358-34 29 56.5552009.405140-34.499043 0.115 0.11516.448 0.30017.177 0.30016.942 0.40017.429 0.5001988.78001988.7800 32.2 14.7 8.8 14.7 %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"	RAICRS deg	e_ mas	DEICRS deg	e_ mas	ID	Type	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Nobs	Dt yr	Rmag mag	Bmag mag	Nmag mag	Vmag mag	Jmag mag	Hmag mag	Kmag mag
1	6.836	00 37 37.168722	-34 29 56.59810	009.4048697	38.00	-34.4990550	95.00	33259+0000853	4	7.2	2.6	11.4	6.5	5	17.942	17.177	16.448	18.141

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2	RA_ICRS deg	DE_ICRS deg	objID	Epoch yr	Class	Gmag mag	[****ClosingBrace(s)Inserted****]
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mag&%">\BegDIVclass='sort-down ' </A>decOMag
magBjmag
mag

Fpgmag
mag

Epgmag
mag

Npgmag
mag

Umag
mag

Bmag
mag

Vmag
mag

umag
mag

gmag
mag

rmag
mag

imag
mag

zmag
mag

ymag
mag

Jmag
mag

Hmag
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Ksmag
mag

Zmag
mag

Ymag
mag

W1mag
mag

W2mag
mag

W3mag
mag

W4mag
mag

FUVmag
mag

NUVmag
mag

a
pix

e
pix

PA
pix

1 2.94800 37 37.3452758789-34 29 50.675354004S0DN031820009.40560531616-34.49740982056 20013223318202013.0003                      21.56919.875                                 2 4.64200 37 37.6155853271-34 29 47.228393555S0DN029610009.40673160553-34.49645233154 20013223296102013.0003                    21.52122.284                                   3 6.67500 37 37.2207981191-34 29 56.630760207S0DN000853009.40494019000-34.49904996000 200132238532014.8513    16.44820017.177600  18.141400      20.04118.30817.78019.45417.673            15.95115.94412.100 8.87620.27719.535 6.260 0.472106.5 4 9.21300 37 37.0420074463-34 29 58.393249512S0DN032114009.40434169769-34.49955368042 20013223321142013.0003                  20.69622.072                                     517.61300 37 36.8792813192-34 30 18.325106834S0DN043652009.40842990000-34.50236240000 20013223436522010.5604                                        17.53016.80512.675 8.419           618.96000 37 37.0127105713-34 30 09.516906738S0DN007385009.40421962738-34.50264358521 2001322373851978.8100    22.048600                                               2.166 0.644103.2 727.77400 37 37.3366992000-34 30 19.458324000S0DN040196009.40556958000-34.50540509000 20013223401962014.3193                        20.212                                 %0a%0a%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"	WISE	RAJ2000 deg	DEJ2000 deg	eeMaj arcsec	eeMin arcsec	Im	W1mag mag	e_ mag	W2mag mag	e_ mag	W3mag mag	e_ mag	W4mag mag	e_ mag	Jmag mag	Hmag mag	Kmag mag	ccf	ex	var	d2M arcsec	2M
1	7.261	00 37 37.16932	-34 29 57.1963	J003737.16-342957.1	009.404872	-34.499221	0.368	0.328	Im	16.021	0.062	16.218	0.218	12.121	0.240	9.148					0000	0	1nnn		2M

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