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	3.066	16 34 59.50416	-20 22 15.7404	0675-16033748	248.747934	-20.371039			16.9	15.7	1982.451
2	8.453	16 34 59.66352	-20 22 10.6212	0675-16033838	248.748598	-20.369617			19.1	18.1	1954.496
3	13.690	16 34 58.88544	-20 22 29.2728	0675-16033395	248.745356	-20.374798			20.4	17.8	1982.451
4	16.022	16 35 00.07416	-20 22 04.8612	0675-16034084	248.750309	-20.368017			17.6	16.5	1982.451
5	29.765	16 34 59.75016	-20 22 48.3816	0675-16033879	248.748959	-20.380106			20.0	18.2	1982.451

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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	3.416	16 34 59.50224	-20 22 15.3912	S22303339999	248.747926	-20.370942	1996.295	15.72	0.33	17.30	0.33	3	5.42	0.29
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%203.416&%3cFONT%20COLOR=%27#CD5B45%27>16%2034%2059.50224&%3cFONT%20COLOR=%27#CD5B45%27>-20%2022%2015.3912&S22303339999&248.747926&-20.370942&1996.295&15.72&%200.33&17.30&%200.33&3&%20%205.42&%200.29%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6629061182145&-out.add=.&-source=I/271/out&GSC2.2===S223033310000' class='full'215.97216 35 00.05664-20 22 04.7820S223033310000248.750236-20.3679951996.29516.39 0.3318.01 0.330 3.86 0.05 %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	3.068	16 34 59.50080	-20 22 15.7404	0696-0357237	248.747920	-20.371039	157	265	1976.2	0	0	5	17.77	15.82	17.17	15.40	15.19
2	7.780	16 34 59.60472	-20 22 11.1324	0696-0357239	248.748353	-20.369759	105	367	1976.2	-12	-8	5	20.25	18.54	19.43	18.16	17.59
3	13.934	16 34 58.87800	-20 22 29.5032	0696-0357225	248.745325	-20.374862	89	90	1987.9	0	0	2			21.16		18.82
4	15.785	16 35 00.05880	-20 22 05.0124	0696-0357249	248.750245	-20.368059	95	70	1976.2	-12	-4	5	18.55	16.63	17.86	16.35	15.68
5	28.212	16 34 59.96736	-20 22 46.2828	0696-0357248	248.749864	-20.379523	999	999	1981.6	0	0	4		19.38	20.63	19.26	18.64

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

%22>%5cFONT SIZE=-1mas/yre_
(...)Bmag
magr_

Vmag
magr_

Rmag
magr_

Jmag
magHmag
magKmag
magR

1 3.06916 34 59.500656-20 22 15.740040696-0363924YM248.7479194-20.3710389B 0.0 0.0 0.0 0.018.130Y    15.400B14.16213.55313.352   2 7.78216 34 59.604672-20 22 11.129880696-0363926..248.7483528-20.3697583B -12.0 3.0 -8.0 12.019.430B    18.160B         313.93116 34 58.878000-20 22 29.499960696-0363912..248.7453250-20.3748611B 0.0 0.0 0.0 0.021.160B                 415.78616 35 00.058656-20 22 05.009880696-0363936YM248.7502444-20.3680583B -12.0 3.0 -4.0 2.017.760Y17.140Y16.350B14.66014.09913.929   528.21016 34 59.967336-20 22 46.279920696-0363935..248.7498639-20.3795222B 0.0 0.0 0.0 0.020.630B    19.260B         %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	3.555	16 34 59.52624	-20 22 15.2544	163459.5-202215		248.748026	-20.370904	15.915	3	14.162	13.553	13.352
2	15.924	16 35 00.06624	-20 22 04.9116	163500.0-202204		248.750276	-20.368031	16.401	3	14.661	14.099	13.930

%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	3.419	16 34 59.50248	-20 22 15.3876	S8JJ009999	248.747927	-20.370941	1996.295	15.72	17.30		15.28	3	5.42	0.29
2	9.093	16 34 59.63808	-20 22 09.8832	S8JJ035405	248.748492	-20.369412	1979.623		19.87			0	2.15	0.21
3	13.617	16 34 58.87872	-20 22 29.0964	S8JJ009830	248.745328	-20.374749	1996.295	19.67	21.13			3	1.85	0.20
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%3cEM%3e3&%3cFONT%20COLOR=%27#CD5B45%27>13.617&%3cFONT%20COLOR=%27#CD5B45%27>16%2034%2058.87872&%3cFONT%20COLOR=%27#CD5B45%27>-20%2022%2029.0964&S8JJ009830&248.745328&-20.374749&1996.295&19.67&21.13&%20&%20&3&%20%201.85&%200.20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6629061182145&-out.add=.&-source=I/305/out&GSC2.3===S8JJ010000&-out.orig=o' class='full'415.97716 35 00.05688-20 22 04.7784S8JJ010000248.750237-20.3679941996.29516.3918.01  15.910 3.86 0.05 529.48216 34 59.71344-20 22 48.1512S8JJ009697248.748806-20.3800421996.29519.5520.73  19.123 2.13 0.35 %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	3.481	16 34 59.51040	-20 22 15.3228	248.747960	-20.370923	3.6	5.5	14.162	13.352	17.77	17.17	15.82	15.40	15.19	6	0
2	7.947	16 34 59.60472	-20 22 10.9632	248.748353	-20.369712	-16.1	-12.5			20.25	19.43	18.54	18.16	17.59	5	0
3	13.926	16 34 58.87032	-20 22 29.4024	248.745293	-20.374834	-12.5	-4.1				21.16			18.82	2	0
4	15.923	16 35 00.06480	-20 22 04.9008	248.750270	-20.368028	-13.7	-6.7	14.661	13.930	18.55	17.86	16.63	16.35	15.68	6	0
5	28.037	16 34 59.70432	-20 22 46.7112	248.748768	-20.379642	-80.0	-149.2				20.63	19.38	19.26	18.64	4	1

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

%20

%22>%5cFONT SIZE=-1degpmRAp
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1 3.47516 34 59.50922-20 22 15.3298XPM 139-0595383248.747955-20.370925 0.97 24.65 -0.07 24.8215.71517.303  15.28314.162 0.03213.553 0.03913.352 0.039 3116755216.915.7 58516.03043900M 215.91916 35 00.06506-20 22 04.9078XPM 139-0595407248.750271-20.368030 -10.31 -1.67 -11.35 -1.5016.38618.005  15.90614.661 0.02914.099 0.02913.930 0.057 3116756217.616.5 58516.03043900M %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	3.418	16 34 59.514120	-20 22 15.38616	6480277749	248.7479755	71.9	-20.3709406	71.0	-4.15	3.19	3.60	3.11	1988.00	4	0	1	19.99	16.86	14.162	13.553	13.352	2M	0	A
2	15.968	16 35 00.068544	-20 22 04.87848	6480277754	248.7502856	64.4	-20.3680218	63.9	-29.91	4.05	-5.22	3.90	1995.54	4	0	1	19.99	17.20	14.661	14.099	13.930	2M	0	A

%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	[****ClosingBrace(s)Inserted****]
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mas/yr

Jmag
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1 3.44316 34 59.520864-20 22 15.36312349-080222248.7480036-20.3709342 18316.4230 0 0.6 4.814.16213.352        000000011 %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	3.443	16 34 59.52084	-20 22 15.3633	248.748003	-20.370934	0.072	0.069	17.303	0.300	15.715	0.300	15.954	0.400	14.732	0.500	1973.6400	1976.6000	0.6	4.5	4.8	4.2
2	7.947	16 34 59.60472	-20 22 10.9628	248.748353	-20.369712	0.103	0.103	19.873	0.300	18.160	0.400	18.391	0.400	17.092	0.500	1976.2500	1976.2500	-16.1	5.5	-12.5	5.5
3	13.926	16 34 58.87035	-20 22 29.4022	248.745293	-20.374834	0.163	0.163	21.129	0.300	19.673	0.300	19.915	0.400	18.778	0.500	1987.9900	1987.9900	-12.5	19.4	-4.1	19.4
4	15.923	16 35 00.06477	-20 22 04.9010	248.750270	-20.368028	0.063	0.063	18.005	0.300	16.386	0.300	16.623	0.400	15.383	0.500	1990.1000	1990.1000	-13.7	4.0	-6.7	4.0
5	28.036	16 34 59.70434	-20 22 46.7108	248.748768	-20.379642	0.115	0.133	20.731	0.300	19.547	0.300	19.777	0.400	18.822	0.500	1982.0400	1982.0400	-80.0	6.7	-149.2	6.7

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