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	0.412	10 48 55.40544	-59 21 43.9920	0300-10693553	162.230856	-59.362220			20.8	17.5	1979.639
2	5.129	10 48 55.97208	-59 21 46.0404	0300-10693980	162.233217	-59.362789			20.4	17.7	1979.639

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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	0.133	10 48 55.36272	-59 21 43.6104	S111301147861	162.230678	-59.362114	1997.123	17.04	1.09			3	1.87	0.22

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Full [****ClosingBrace(s)Inserted****]

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">  _r
arcsec _RAJ2000
"h:m:s" _DEJ2000
"d:m:s"USNO-B1.0

RAJ2000
degDEJ2000
dege_RAJ2000
mase_DEJ2000
masEpoch
yrpmRA
mas/yrpmDE
mas/yrNdet

B1mag
magR1mag
magB2mag
magR2mag
magImag
mag 1 0.63910 48 55.46352-59 21 43.60320306-0193864162.231098-59.3621127341171982.8 28 164  15.5117.1818.1615.76 2 5.20110 48 55.98480-59 21 46.01160306-0193870162.233270-59.362781194 241980.1 0 03  16.4517.10  16.93 %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	0.638	10 48 55.463328	-59 21 43.59996	0306-0213125	YM	162.2310972	-59.3621111	B	28.0	40.0	16.0	6.0	17.460	Y	17.170	Y	18.160	B	14.788	14.212	13.970
2	5.200	10 48 55.984656	-59 21 46.01016	0306-0213134	.M	162.2332694	-59.3627806	B	0.0	0.0	0.0	0.0	17.100	B			16.450	e	16.239	15.564	14.705

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3	RAJ2000 deg	DEJ2000 deg	Epoch [****ClosingBrace(s)Inserted****]
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Epoch

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

jmag
mag

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mag

Nmag
mag

Class

a
pix

e

1 0.13310 48 55.36296-59 21 43.6032S4AT047861162.230679-59.3621121997.12317.04    16.103 1.87 0.22 %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	0.056	10 48 55.37400	-59 21 43.5960	162.230725	-59.362110	-6.9	16.3	14.788	13.970		17.18	15.51	18.16	15.76	5	0
2	5.165	10 48 55.97400	-59 21 46.0908	162.233225	-59.362803	-2.9	-3.6	16.240	14.706		17.10	16.45		16.93	4	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	[****ClosingBrace(s)Inserted****]
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mag&%">\BegDIVclass='sort-down ' </A>decNmag
magJmag
mag

e_
mag

Hmag
mag

e_
mag

Kmag
mag

e_
mag

2Mkey

Bmag
mag

Rmag
mag

Fld

dT
yr

fg

fs

M

1 0.06510 48 55.37184-59 21 43.6102XPM 061-0375416162.230716-59.362114 -13.58 15.72 -15.60 15.46        14.788 0.05614.213 0.05113.970 0.075 78580649120.817.5 12820.41482700M 2 5.17710 48 55.97448-59 21 46.1088XPM 061-0375427162.233227-59.362808 0.23 -5.79 -1.78 -6.05        16.240 0.13315.564 0.12814.706   78580650120.417.7 12820.41482700M %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"	SPMID	RAJ2000 deg	e_ mas	DEJ2000 deg	e_ mas	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Epoch yr	N1	N2	Nc	Bmag mag	Vmag mag	Jmag mag	Hmag mag	Kmag mag	2M	igal	A
1	0.048	10 48 55.374312	-59 21 43.60824	1362279712	162.2307263	171.7	-59.3621134	174.5	-6.00	8.68	-1.80	9.24	1992.35	1	0	0	18.43	17.50	14.788	14.213	13.970	2M	0	A

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

%20

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

e_
mag

magG
mag

e_
mag

magGrvs
mag

e_
mag

alphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 0.05610 48 55.37401-59 21 43.5961162.230725-59.362110 0.066 0.06617.180 0.40017.038 0.30017.062 0.40016.872 0.5001994.45001994.4500 -6.9 7.5 16.3 7.5 2 5.16610 48 55.97403-59 21 46.0912162.233225-59.362803 0.077 0.07717.100 0.40016.450 0.40016.601 0.40016.026 0.5001993.39001993.3900 -2.9 8.0 -3.6 8.0 %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	pmRA mas/yr	pmDE mas/yr	RADEcor	Dup	<FG> e-/s	e_ e-/s	<Gmag> mag	Var
1	0.075	10 48 55.370283205	-59 21 43.63903768	162.2307095134	3.863	-59.3621219549	2.579	5350424757026718336				0.981	0	1.8660e+03	1.9637e+01	17.347	NOT_AVAILABLE
2	4.489	10 48 55.134793960	-59 21 39.54938856	162.2297283082	16.054	-59.3609859413	12.181	5350424761326075136				-0.571	0	1.5713e+02	2.8325e+00	20.034	NOT_AVAILABLE
3	5.166	10 48 55.973337205	-59 21 46.10118995	162.2332222384	4.034	-59.3628058861	2.700	5350424757030723328				0.982	0	7.3903e+02	2.5835e+00	18.353	NOT_AVAILABLE
4	7.391	10 48 54.420574103	-59 21 44.54607917	162.2267523921	24.045	-59.3623739109	14.397	5350424761326069376				0.865	0	7.8595e+01	2.5978e+00	20.786	NOT_AVAILABLE
5	9.403	10 48 56.072200268	-59 21 51.40139019	162.2336341678	1.297	-59.3642781639	0.588	5350424761322214016				-0.303	0	2.2689e+02	2.5503e+00	19.635	NOT_AVAILABLE

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