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	0.721	03 38 56.78016	-62 51 55.2924	0225-00916484	054.736584	-62.865359			20.6	17.9	1986.279

%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	0.768	03 38 56.79552	-62 51 55.3032	0271-0027140	054.736648	-62.865362	267	99	1986.1	26	16	3			21.39	19.25	18.29
2	0.786	03 38 56.65872	-62 51 55.0800	0271-0027139	054.736078	-62.865300	191	161	1989.3	-50	24	4		19.38	21.27	19.81	18.56
3	8.495	03 38 55.70880	-62 51 49.9716	0271-0027138	054.732120	-62.863881	116	59	1983.3	0	0	2			21.16	20.28
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%3cEM%3e3&%3cFONT%20COLOR=%27#CD5B45%27>%208.495&%3cFONT%20COLOR=%27#CD5B45%27>03%2038%2055.70880&%3cFONT%20COLOR=%27#CD5B45%27>-62%2051%2049.9716&0271-0027138&054.732120&-62.863881&116&%2059&1983.3&%20%20%20%20%200&%20%20%20%20%200&2&%20&%20&21.16&20.28&%20%3cBR%3e">\EndTABLESORT

Note: The Naval Observatory Merged Astrometric Dataset (NOMAD) contains astrometric and photometric data for over 1 billion stars derived from the Hipparcos (I/239), Tycho-2 (I/259), UCAC2 (I/289), and USNO-B1.0 (I/284) catalogs for astrometry and optical photometry, supplemented by 2MASS (II/246) near-infrared photometry.
An efficient remote query program findnomad1 is available in the cdsclient package, for Unix/Linux platforms

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	0.765	03 38 56.795328	-62 51 55.29996	0271-0027182	..	054.7366472	-62.8653611	B	26.0	17.0	16.0	6.0	21.390	B			19.250	B
2	0.787	03 38 56.658672	-62 51 55.08000	0271-0027181	..	054.7360778	-62.8653000	B	-50.0	16.0	24.0	14.0	21.270	B			19.810	B
3	8.497	03 38 55.708656	-62 51 49.97016	0271-0027180	..	054.7321194	-62.8638806	B	0.0	0.0	0.0	0.0	21.160	B			20.280	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

%22>RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 0.89903 38 56.70552-62 51 55.4472S1F1004204054.736273-62.8654021989.89019.5122.02  18.030 1.53 0.18 2 8.58103 38 55.70280-62 51 49.8780S1F1004219054.732095-62.8638551989.89019.8621.81    3 1.78 0.42 %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	0.597	03 38 56.67504	-62 51 54.9072	054.736146	-62.865252	-48.2	41.6				21.27	19.38	19.81	18.56	4	0
2	0.704	03 38 56.81064	-62 51 55.1700	054.736711	-62.865325	32.6	26.5				21.39		19.25	18.29	3	0
3	8.399	03 38 55.73160	-62 51 49.9104	054.732215	-62.863864	8.2	7.4				21.16		20.28		2	0

%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_ [****ClosingBrace(s)Inserted****]
">

e_

%20

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

e_
mag

magGrvs
mag

e_
mag

alphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 0.59603 38 56.67509-62 51 54.9068054.736146-62.865252 0.115 0.11522.024 0.30019.513 0.30019.534 0.40017.805 0.5001989.34001989.3400 -48.2 31.0 41.6 31.0 2 0.70403 38 56.81065-62 51 55.1699054.736711-62.865325 0.133 0.13321.390 0.40019.250 0.40019.404 0.40017.860 0.5001986.17001986.1700 32.6 18.7 26.5 18.7 3 8.39903 38 55.73158-62 51 49.9102054.732215-62.863864 0.163 0.16321.812 0.30019.855 0.30020.051 0.40018.608 0.5001983.30001983.3000 8.2 24.7 7.4 24.7 %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	0.513	03 38 56.713800	-62 51 55.05082	054.7363075	47.00	-62.8652919	68.00	34605+0004204	0	9.4	3.6	12.3	5.2	5	18.201	19.513	22.024	18.029
2	8.940	03 38 55.659800	-62 51 49.67202	054.7319158	525.00	-62.8637978	499.00	34605+0004219	4	-16.9	29.7	-0.5	28.2	3	13.146	19.855	21.812

%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	[****ClosingBrace(s)Inserted****]
">

mas&%">\BegDIVclass='sort-down ' </A>decpmRA
mas/yrpmDE
mas/yr

RADEcor

Dup

<FG>
e-/s

e_
e-/s

<Gmag>
mag

Var

1 0.66803 38 56.768271404-62 51 55.25767463054.7365344642 0.937-62.8653493541 1.5874674205246017536128       0.7300 2.8651e+02 1.6225e+0019.382NOT_AVAILABLE 2 8.16003 38 55.751161816-62 51 50.14136374054.7322965076 4.665-62.8639281566 5.0714674205246015417088       0.7040 1.0407e+02 3.5414e+0020.481NOT_AVAILABLE %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"	RAJ2000 deg	DEJ2000 deg	ipix	comp	pmRA mas/yr	pmDE mas/yr	Jmag mag	Hmag mag	Kmag mag	B1mag mag	B2mag mag	R1mag mag	R2mag mag	Imag mag	GaiaId	Gmag mag	Clone	Nosc
1	0.817	03 38 56.752708152	-62 51 55.41763572	054.7364696173	-62.8653937877	6688758247306240145		7.098	10.664					21.39		19.25	18.29	4674205246017536128	19.382
2	8.291	03 38 55.732465320	-62 51 50.09786496	054.7322186055	-62.8639160736	6688758614494632267		8.528	-2.899					21.16		20.28		4674205246015417088	20.482

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