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	2.184	19 38 52.41552	+30 54 10.2420	1200-12434172	294.718398	+30.902845			18.2	16.6	1951.514
2	4.913	19 38 52.53336	+30 54 07.9704	1200-12434337	294.718889	+30.902214			15.3	14.8	1951.514
3	8.260	19 38 52.09152	+30 54 04.4604	1200-12433725	294.717048	+30.901239			17.7	16.8	1951.514

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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	0.327	19 38 52.31352	+30 54 11.8800	N030131123334	294.717973	+30.903300	1995.590	17.52	0.54	19.14	0.40	3	1.56	0.02
2	6.326	19 38 52.65168	+30 54 07.3440	N030131123287	294.719382	+30.902040	1995.590	15.11	0.47	17.44	0.38	3	4.60	0.51
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%206.326&%3cFONT%20COLOR=%27#CD5B45%27>19%2038%2052.65168&%3cFONT%20COLOR=%27#CD5B45%27>%2b30%2054%2007.3440&N030131123287&294.719382&%2b30.902040&1995.590&15.11&%200.47&17.44&%200.38&3&%20%204.60&%200.51%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663cb6c577a01&-out.add=.&-source=I/271/out&GSC2.2===N0301311120693' class='full'3 6.82819 38 52.39104+30 54 05.3460N0301311120693294.718296+30.9014851988.536    17.88 0.390 3.04 0.16 4 8.93719 38 52.05864+30 54 03.9024N030131123288294.716911+30.9010841995.59016.85 0.5118.50 0.393 3.38 0.57 %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	1.552	19 38 52.38600	+30 54 10.7532	1209-0376155	294.718275	+30.902987	132	297	1975.3	0	0	5	18.01	16.11	17.89	16.52	16.29
2	4.852	19 38 52.52208	+30 54 07.9524	1209-0376165	294.718842	+30.902209	166	124	1975.3	0	0	5	15.19	14.37	15.45	14.33	13.85
3	5.610	19 38 52.39488	+30 54 06.5808	1209-0376156	294.718312	+30.901828	72	174	1970.4	0	0	2	16.45				15.58
4	8.460	19 38 52.06800	+30 54 04.3704	1209-0376135	294.716950	+30.901214	149	61	1975.3	0	0	5	17.41	16.25	17.53	16.44	16.51

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

%22>%5cFONT SIZE=-1magr_

Vmag
magr_

Rmag
magr_

Jmag
magHmag
magKmag
magR

1 1.55519 38 52.386000+30 54 10.749961209-0383953.M294.7182750+30.9029861B 0.0 0.0 0.0 0.017.890B    16.520B15.96415.41915.287   2 4.85419 38 52.522008+30 54 07.949881209-0383963..294.7188417+30.9022083B 0.0 0.0 0.0 0.015.450B    14.330B         3 5.61019 38 52.394664+30 54 06.580081209-0383954.M294.7183111+30.9018278B 0.0 0.0 0.0 0.016.450o        15.85315.48315.079   4 6.16319 38 52.704672+30 54 08.290081209-0383977YM294.7196028+30.9023028Y -7.5 9.0 0.0 9.016.520Y15.770Y    14.74214.26914.093   5 8.46019 38 52.068000+30 54 04.370041209-0383932YM294.7169500+30.9012139B 0.0 0.0 0.0 0.016.740Y17.070Y16.440B15.93215.58615.230   %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	6.209	19 38 52.71000	+30 54 08.3016	193852.7+305408		294.719625	+30.902306	16.316	2	14.742	14.269	14.094
2	6.945	19 38 52.37976	+30 54 05.2128	193852.3+305405		294.718249	+30.901448	17.569	1	15.854
3	9.463	19 38 51.95928	+30 54 03.9564	193851.9+305403		294.716497	+30.901099	17.185	1	15.933

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20This%20version%20of%20the%20%0a%3cB%3eGSC-II%0ahas%20no%20proper%20motions,%20but%20the%20limits%20on%20brightness%20which%20existed%20on%0a%20%28F<18.5,%20B_j<19.5%29%20were%20removed.%0a%25The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%0a%25the%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a

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	0.323	19 38 52.31376	+30 54 11.8836	N2GL023334	294.717974	+30.903301	1995.590	17.52	19.14		17.00	3	1.56	0.02
2	6.326	19 38 52.65192	+30 54 07.3476	N2GL023287	294.719383	+30.902041	1995.590	15.11	17.44		15.41	3	4.60	0.51
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%206.326&%3cFONT%20COLOR=%27#CD5B45%27>19%2038%2052.65192&%3cFONT%20COLOR=%27#CD5B45%27>%2b30%2054%2007.3476&N2GL023287&294.719383&%2b30.902041&1995.590&15.11&17.44&%20&15.41&3&%20%204.60&%200.51%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663cb6c577a01&-out.add=.&-source=I/305/out&GSC2.3===N2GL120693&-out.orig=o' class='full'3 6.82419 38 52.39128+30 54 05.3496N2GL120693294.718297+30.9014861988.536  17.88  16.540 3.04 0.16 4 8.93419 38 52.05864+30 54 03.9060N2GL023288294.716911+30.9010851995.59016.8518.50  16.880 3.38 0.57 %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	0.618	19 38 52.33992	+30 54 11.5236	294.718083	+30.903201	-17.0	22.3	15.964	15.287	18.01	17.89	16.11	16.52	16.29	6	1
2	5.025	19 38 52.51104	+30 54 07.6752	294.718796	+30.902132	-4.7	-4.3			15.19	15.45	14.37	14.33	13.85	5	0
3	7.149	19 38 52.36896	+30 54 04.9968	294.718204	+30.901388	-10.9	-35.2	15.854	15.079	16.45				15.58	3	1
4	9.346	19 38 52.00032	+30 54 03.8016	294.716668	+30.901056	-23.6	-9.7	15.933	15.231	17.41	17.53	16.25	16.44	16.51	6	1

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID	RAICRS deg	DEICRS deg	pmRAp mas/yr	pmDEp [****ClosingBrace(s)Inserted****]
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pmDEp

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yr

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1 6.39219 38 52.72299+30 54 08.2186XPM 241-0557017294.719679+30.902283 81.40 -40.00 82.50 -40.3015.10917.435  15.41314.742 0.04814.269 0.04814.094 0.061 24047643218.216.6 33846.81219500M 2 7.20619 38 52.38504+30 54 04.9571XPM 241-0556989294.718271+30.901377 77.75 11.98 78.85 11.68        15.854 0.07815.484 0.12415.079 0.158 24047642317.716.8 33846.81219500M %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	6.190	19 38 52.712904	+30 54 08.38224	605-085662	294.7196371	+30.9023284	307	16.579	0	0	24.0	3.2	14.742	14.094					0	0	0	0	0	0	0	3	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****]
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arcsecmagBJ
mag

e_
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mag

e_
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e_
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alphaEpoch
yr

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mas/yr

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1 0.61819 38 52.33995+30 54 11.5240294.718083+30.903201 0.084 0.10319.142 0.30017.521 0.30017.759 0.40016.517 0.5001983.13001983.1300 -17.0 4.3 22.3 4.9 2 5.02619 38 52.51104+30 54 07.6749294.718796+30.902132 0.103 0.10315.450 0.40014.330 0.40014.555 0.40013.644 0.5001975.31001975.3100 -4.7 5.3 -4.3 5.3 3 6.18919 38 52.71286+30 54 08.3817294.719637+30.902328 0.244 0.15217.435 0.30015.109 0.30015.205 0.40013.564 0.5001983.89001983.8900 24.0 11.2 3.2 9.4 4 7.14919 38 52.36891+30 54 04.9970294.718204+30.901388 0.092 0.10117.884 0.30018.195 0.50018.086 0.40018.247 0.5001989.36001989.3600 -10.9 5.5 -35.2 5.5 5 9.34619 38 52.00035+30 54 03.8018294.716668+30.901056 0.103 0.08218.495 0.30016.847 0.30017.083 0.40015.824 0.5001983.80001983.8000 -23.6 4.8 -9.7 4.3 %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	6.214	19 38 52.71000	+30 54 08.2946	193852.7+305408	294.719625	+30.902304	16.316		2	14.742	14.269	14.094
2	6.945	19 38 52.37978	+30 54 05.2128	193852.3+305405	294.718249	+30.901448	17.569		1	15.854
3	7.838	19 38 52.18008	+30 54 04.5322	193852.1+305404	294.717417	+30.901259	16.512	:	1
4	9.464	19 38 51.95927	+30 54 03.9563	193851.9+305403	294.716497	+30.901099	17.185		1	15.933

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