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	0.478	20 04 23.12736	+44 20 29.9112	1275-13268746	301.096364	+44.341642			15.7	15.2	1954.569
2	15.994	20 04 24.15888	+44 20 18.9024	1275-13269588	301.100662	+44.338584			19.8	18.4	1954.569
3	20.583	20 04 24.50208	+44 20 43.8324	1275-13269827	301.102092	+44.345509			19.9	19.2	1954.569
4	21.059	20 04 22.40088	+44 20 10.2300	1275-13268178	301.093337	+44.336175			17.4	15.0	1954.569
5	28.481	20 04 20.61552	+44 20 19.4712	1275-13266754	301.085898	+44.338742			18.7	16.3	1954.569
6	29.889	20 04 25.62600	+44 20 17.7612	1275-13270693	301.106775	+44.338267			19.5	17.7	1954.569

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

%22>%5cFONT SIZE=-1pixe

121.44720 04 22.40760+44 20 09.7908N030222155106301.093365+44.3360531990.69615.44 0.4017.36 0.373 3.66 0.11 228.72920 04 20.60088+44 20 19.1976N030222155259301.085837+44.3386661990.69616.70 0.4018.87 0.373 3.35 0.21 %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	0.192	20 04 23.09016	+44 20 30.1524	1343-0383974	301.096209	+44.341709	66	55	1966.2	-6	6	3	15.66	15.76	20.22
2	10.555	20 04 22.58544	+44 20 39.0804	1343-0383967	301.094106	+44.344189	103	89	1992.7	0	0	2			21.04		19.09
3	16.017	20 04 24.14088	+44 20 18.6720	1343-0383991	301.100587	+44.338520	95	141	1977.0	0	0	5	20.52	18.84	20.68	19.23	18.32
4	20.330	20 04 24.47616	+44 20 43.7604	1343-0383999	301.101984	+44.345489	56	92	1972.3	0	0	4	20.68	19.81	20.64	19.72
5	21.102	20 04 22.38672	+44 20 10.2408	1343-0383964	301.093278	+44.336178	79	59	1977.0	0	0	5	17.51	15.63	16.82	15.31	14.58
6	25.543	20 04 25.33152	+44 20 21.5700	1343-0384007	301.105548	+44.339325	25	265	1972.6	0	0	2		19.62		19.62
7	26.450	20 04 23.78544	+44 20 04.6212	1343-0383985	301.099106	+44.334617	57	35	1990.1	0	0	2			20.54	19.23
8	28.772	20 04 20.58888	+44 20 19.4028	1343-0383943	301.085787	+44.338723	81	44	1977.0	0	0	5	19.17	16.92	18.27	16.41	15.88
9	29.837	20 04 25.61616	+44 20 17.6532	1343-0384012	301.106734	+44.338237	142	156	1977.0	0	0	5	20.18	18.22	19.90	17.79	17.47

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	NOMAD1 [****ClosingBrace(s)Inserted****]
">

NOMAD1

%20

%22>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 0.18920 04 23.089992+44 20 30.149881343-0389478..301.0962083+44.3417083B -6.0 1.0 6.0 1.020.220B    15.760e         210.55520 04 22.585344+44 20 39.080041343-0389471..301.0941056+44.3441889B 0.0 0.0 0.0 0.021.040B                 316.01620 04 24.140664+44 20 18.669841343-0389495..301.1005861+44.3385194B 0.0 0.0 0.0 0.020.680B    19.230B         420.32820 04 24.475992+44 20 43.760041343-0389504..301.1019833+44.3454889B 0.0 0.0 0.0 0.020.640B    19.720B         521.10320 04 22.386672+44 20 10.240081343-0389468YM301.0932778+44.3361778B 0.0 0.0 0.0 0.017.720Y    15.310B13.25612.52612.343   625.54120 04 25.331328+44 20 21.570001343-0389512..301.1055472+44.3393250B 0.0 0.0 0.0 0.0        19.620B         726.45120 04 23.785344+44 20 04.620121343-0389489..301.0991056+44.3346167B 0.0 0.0 0.0 0.020.540B    19.230B         828.77620 04 20.588664+44 20 19.399921343-0389447YM301.0857861+44.3387222B 0.0 0.0 0.0 0.018.260Y17.450Y16.410B14.65713.88013.608   929.83720 04 25.615992+44 20 17.649961343-0389517.M301.1067333+44.3382361B 0.0 0.0 0.0 0.019.900B    17.790B16.70515.88815.622   %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-30/%2b50deg%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC14	f_	RAICRS deg	DEICRS deg	r'mag mag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	21.692	20 04 22.37232	+44 20 09.6684	200422.3+442009		301.093218	+44.336019	15.734	4	13.257	12.527	12.344
2	29.047	20 04 20.56032	+44 20 19.4316	200420.5+442019		301.085668	+44.338731	17.095	4	14.658	13.880	13.609

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3	RAJ2000 deg	DEJ2000 deg	Epoch yr	Fmag mag	jmag mag	Vmag mag	Nmag mag	Class	a pix	e
1	0.621	20 04 23.13792	+44 20 29.7744	N2I1094293	301.096408	+44.341604	1989.655		21.00	18.97		0	1.91	0.22
2	5.500	20 04 22.80960	+44 20 34.6272	N2I1055531	301.095040	+44.342952	1990.696	19.58				3	1.48	0.12
3	10.308	20 04 22.59888	+44 20 38.8788	N2I1055629	301.094162	+44.344133	1990.696	19.25	21.86			3	1.56	0.17
[****ClosingBrace(s)Inserted****]
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%3cEM%3e3&%3cFONT%20COLOR=%27#CD5B45%27>10.308&%3cFONT%20COLOR=%27#CD5B45%27>20%2004%2022.59888&%3cFONT%20COLOR=%27#CD5B45%27>%2b44%2020%2038.8788&N2I1055629&301.094162&%2b44.344133&1990.696&19.25&21.86&%20&%20&3&%20%201.56&%200.17%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ664148e11e403&-out.add=.&-source=I/305/out&GSC2.3===N2I1055236&-out.orig=o' class='full'416.59520 04 24.18024+44 20 18.2760N2I1055236301.100751+44.3384101990.69618.7021.1419.0817.833 2.57 0.42 520.45020 04 24.47712+44 20 43.9260N2I1055786301.101988+44.3455351990.69619.2321.52    3 3.17 0.60 621.44620 04 22.40784+44 20 09.7908N2I1055106301.093366+44.3360531990.69615.4417.3615.9314.650 3.66 0.11 725.26620 04 25.31520+44 20 21.9120N2I1055258301.105480+44.3394201990.69619.2122.02    3 1.56 0.07 827.02820 04 23.82168+44 20 04.1352N2I1054915301.099257+44.3344821990.69618.7921.36    3 2.58 0.37 928.72520 04 20.60112+44 20 19.2012N2I1055259301.085838+44.3386671990.69616.7018.8717.5215.993 3.35 0.21 %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	0.137	20 04 23.09280	+44 20 29.8860	301.096220	+44.341635	-9.6	0.2			15.66	20.22	15.76			3	0
2	16.171	20 04 24.13320	+44 20 18.3732	301.100555	+44.338437	-5.6	-11.3			20.52	20.68	18.84	19.23	18.32	5	0
3	20.137	20 04 24.47304	+44 20 43.5120	301.101971	+44.345420	-4.8	-6.9			20.68	20.64	19.81	19.72		4	0
4	21.581	20 04 22.37784	+44 20 09.7656	301.093241	+44.336046	-4.6	-10.2	13.257	12.344	17.51	16.82	15.63	15.31	14.58	6	0
5	25.490	20 04 25.32912	+44 20 21.6564	301.105538	+44.339349	-5.4	2.1					19.62	19.62		2	0
6	28.912	20 04 20.57568	+44 20 19.3812	301.085732	+44.338717	-6.3	1.5	14.658	13.609	19.17	18.27	16.92	16.41	15.88	6	0

%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID [****ClosingBrace(s)Inserted****]
">

ID

%20

%22>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

e_
mag

Hmag
mag

e_
mag

Kmag
mag

e_
mag

2Mkey

Bmag
mag

Rmag
mag

Fld

dT
yr

fg

fs

M

121.63920 04 22.37926+44 20 09.6973XPM 268-0546547301.093247+44.336027 -3.50 -8.44 -2.86 -8.1215.44117.36315.93114.64813.257 0.02412.527 0.02312.344 0.021 38538857317.415.0 23344.21945900M 228.88520 04 20.57642+44 20 19.4352XPM 268-0546485301.085735+44.338732 -7.59 2.60 -6.95 2.9216.69518.87317.52415.98914.658 0.03613.880 0.04213.609 0.037 38538855918.716.3 23344.21945900M %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%0a%25%25%25%20Introduction%20to%20UCAC4%20VizieR%20page%0a%3cEM%3e%25Note:%20%0a%20%20see%20the%20UCAC4%20document,%20and%20the%0a%20%20the%20fix%20for%20high%20proper%20motion%20stars.%0a%20%20The%20UCAC%20home%20page%20is%20available%20at%0a%20%20http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/ucac.%0a%20%20%3cBR%3ePlease%20%3cB%3eacknowledge%20the%20usage%0a%20%20of%20the%20UCAC4%0a%0a%25%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	UCAC4	RAJ2000 deg	DEJ2000 deg	ePos mas	f.mag mag	of	db	pmRA mas/yr	pmDE mas/yr	Jmag mag	Kmag mag	Bmag mag	Vmag mag	rmag mag	imag mag	H	A	b	h	Z	B	L	N	S
1	21.760	20 04 22.374432	+44 20 09.58812	672-080983	301.0932268	+44.3359967	90	15.912	0	0	-0.8	-6.2	13.257	12.344					0	0	0	0	0	0	0	1	0

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	e_RAJ2000 (...)	[****ClosingBrace(s)Inserted****]
">

%28...%29&%">\BegDIVclass='sort-down ' </A>dece_DEJ2000
arcsecmagBJ
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 0.13720 04 23.09280+44 20 29.8860301.096220+44.341635 0.133 0.13321.001 0.30015.760 0.40011.985 0.40010.063 0.5001966.26001966.2600 -9.6 8.0 0.2 8.0 210.30720 04 22.59876+44 20 38.8772301.094162+44.344133 0.400 0.40021.857 0.30019.250 0.30019.225 0.40017.453 0.5001990.70001990.7000 0.0 0.0 0.0 0.0 316.17220 04 24.13319+44 20 18.3726301.100555+44.338437 0.103 0.10320.680 0.40019.230 0.40019.473 0.40018.339 0.5001977.04001977.0400 -5.6 5.6 -11.3 5.6 416.76620 04 24.18394+44 20 18.0739301.100766+44.338354 0.400 0.40021.138 0.30018.697 0.30018.748 0.40017.052 0.5001990.70001990.7000 4.4 5.4 -21.4 7.0 520.13820 04 24.47308+44 20 43.5120301.101971+44.345420 0.115 0.11520.640 0.40019.720 0.40019.920 0.40019.148 0.5001972.37001972.3700 -4.8 6.5 -6.9 6.5 620.44620 04 24.47702+44 20 43.9219301.101988+44.345534 0.400 0.40021.517 0.30019.232 0.30019.342 0.40017.723 0.5001990.70001990.7000 0.0 0.0 0.0 0.0 721.76020 04 22.37440+44 20 09.5883301.093227+44.335997 0.065 0.06117.363 0.30015.441 0.30015.644 0.40014.221 0.5001983.89001983.8900 -0.8 6.6 -6.2 6.5 825.49120 04 25.32915+44 20 21.6561301.105538+44.339349 0.163 0.16322.020 0.30019.210 0.30019.071 0.40017.215 0.5001972.63001972.6300 -5.4 9.0 2.1 9.0 927.03120 04 23.82139+44 20 04.1307301.099256+44.334481 0.400 0.40021.356 0.30018.794 0.30018.791 0.40017.039 0.5001990.70001990.7000 0.0 0.0 0.0 0.0 1028.76020 04 20.60097+44 20 19.1116301.085837+44.338642 0.400 0.40018.873 0.30016.695 0.30016.839 0.40015.274 0.5001990.70001990.7000 0.1 1.4 -9.4 1.5 1128.91220 04 20.57568+44 20 19.3807301.085732+44.338717 0.063 0.06318.270 0.40016.410 0.40016.623 0.40015.236 0.5001990.59001990.5900 -6.3 4.1 1.5 4.1 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-40/%2b50deg%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC15	RA_ICRS deg	DE_ICRS deg	r'mag mag	pflag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	21.692	20 04 22.37234	+44 20 09.6685	200422.3+442009	301.093218	+44.336019	15.734		4	13.257	12.527	12.344
2	29.046	20 04 20.56057	+44 20 19.4279	200420.5+442019	301.085669	+44.338730	17.095		4	14.658	13.880	13.609

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a