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	3.784	00 20 20.32536	+59 18 38.3724	1425-00477915	005.084689	+59.310659			18.1	18.5	1954.747

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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	3.575	00 20 20.32488	+59 18 38.6532	1493-0009780	005.084687	+59.310737	138	170	1977.1	0	0	5	16.81	16.70	15.88	16.05	16.43

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>	\BegDIVclass='sort-down ' </A>
dec 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	3.315	00 20 19.567128	+59 18 41.11092	1493-0010170	.M	005.0815297	+59.3114197	M	0.0	0.0	0.0	0.0							16.574	15.714	16.138
2	3.576	00 20 20.324664	+59 18 38.64996	1493-0010185	YM	005.0846861	+59.3107361	B	0.0	0.0	0.0	0.0	15.880	B	17.340	Y	16.050	B	15.146	14.150	13.647
3	9.290	00 20 19.340400	+59 18 33.42204	1493-0010168	.M	005.0805850	+59.3092839	M	0.0	0.0	0.0	0.0							15.269	14.160	13.753

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	4.365	00 20 20.34264	+59 18 37.7316	005.084761	+59.310481	4.7	-18.1	15.146	13.647	16.81	15.88	16.70	16.05	16.43	6	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	Nmag mag	Jmag mag	[****ClosingBrace(s)Inserted****]
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mag&%">\BegDIVclass='sort-down ' </A>dece_
magHmag
mag

e_
magKmag
mage_
mag2Mkey

Bmag
magRmag
magFld

dT
yrfg

fs

M

1 4.42600 20 20.34216+59 18 37.6525XPM 298-0021997005.084759+59.310459 5.09 -16.09 5.05 -16.07        15.146 0.05514.150 0.05913.647 0.051117744009518.118.5 7945.96046500M %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	3.314	00 20 19.56722	+59 18 41.1140	005.081530	+59.311421	0.299	0.299	21.386	0.500	19.072	0.500	19.172	0.400	17.538	0.500	2000.7100	2000.7100	0.0	0.0	0.0
2	4.365	00 20 20.34267	+59 18 37.7319	005.084761	+59.310481	0.063	0.066	15.880	0.400	16.050	0.400	15.983	0.400	16.034	0.500	1991.9000	1991.9000	4.7	3.9	-18.1	3.9
3	9.289	00 20 19.34040	+59 18 33.4232	005.080585	+59.309284	0.299	0.299	19.660	0.500	17.268	0.500	17.338	0.400	15.665	0.500	2000.7100	2000.7100	0.0	0.0	0.0

%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"	URAT1	RAICRS deg	DEICRS deg	Epoch yr	f.mag [****ClosingBrace(s)Inserted****]
">

f.mag

%20

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

pmRA
mas/yr

pmDE
mas/yr

Jmag
mag

Hmag
mag

Kmag
mag

Bmag
mag

Vmag
mag

gmag
mag

rmag
mag

imag
mag

1 4.43900 20 20.341078+59 18 37.60866747-011985005.0847758+59.31046112013.50417.518 0.042 2.9 3.815.14614.15013.647           2 8.80500 20 21.059074+59 18 37.78808747-012000005.0877461+59.31049672013.57818.578 0.123                     3 9.21600 20 19.339989+59 18 33.41924747-011967005.0806125+59.30929922013.43719.506 0.101 4.0 4.315.26914.16113.753           4 9.92200 20 18.922949+59 18 46.74086747-011954005.0788456+59.31298362013.35218.278 0.205                     %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	0.097	00 20 20.010104390	+59 18 41.16283684	005.0833754350	4.210	+59.3114341213	5.118	428243187560672512				-0.967	0	2.7673e+02	2.8809e+00	19.420	NOT_AVAILABLE
2	1.941	00 20 20.250807434	+59 18 41.50030161	005.0843783643	4.202	+59.3115278616	5.207	428243187560672768				-0.949	0	2.5993e+02	3.9713e+00	19.488	NOT_AVAILABLE
3	4.366	00 20 19.846585237	+59 18 45.42520021	005.0826941052	4.606	+59.3126181112	10.526	428243187566515968				-0.462	0	1.0681e+02	2.5707e+00	20.453	NOT_AVAILABLE
4	4.372	00 20 20.336947215	+59 18 37.69100046	005.0847372801	4.368	+59.3104697224	5.564	428242947042507648				-0.935	0	5.7671e+02	6.5372e+00	18.622	NOT_AVAILABLE
5	8.790	00 20 21.056444719	+59 18 37.77839669	005.0877351863	0.867	+59.3104939991	1.070	428242981402247040				-0.690	0	4.8625e+02	3.3413e+00	18.808	NOT_AVAILABLE
6	9.245	00 20 19.342943843	+59 18 33.46334061	005.0805955993	3.283	+59.3092953724	3.982	428243148910399360				-0.973	0	5.7094e+02	8.3245e+00	18.633	NOT_AVAILABLE
7	9.860	00 20 18.933097382	+59 18 46.74367789	005.0788879058	4.155	+59.3129843550	4.967	428243187560663296				-0.981	0	4.0444e+02	2.7255e+00	19.008	NOT_AVAILABLE

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