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	15.240	19 21 50.69208	+15 09 12.6000	1050-13701176	290.461217	+15.153500			19.0	17.5	1952.396
2	15.942	19 21 49.06152	+15 09 30.9132	1050-13700494	290.454423	+15.158587			16.4	15.2	1953.622
3	22.027	19 21 49.64544	+15 09 46.1412	1050-13700752	290.456856	+15.162817			17.7	16.6	1953.622
4	28.972	19 21 50.18400	+15 09 53.9928	1050-13700958	290.459100	+15.164998			16.6	15.5	1953.622

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20construction%20of%20the%20%0a%3cB%3eGSC-II%20%0ais%20still%20in%20progress:%20this%0aversion%20has%20no%20proper%20motions,%20and%20the%20magnitude%20limits%20are%2018.5%20in%20F%20%28red%29%0aand%2019.5%20in%20J%20%28blue%29.%20The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%20%0athe%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a

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	15.614	19 21 50.70408	+15 09 12.2652	N023311211015	290.461267	+15.153407	1992.430	17.69	0.42			0	2.84	0.12
2	15.614	19 21 50.70408	+15 09 12.2652	N023311274111	290.461267	+15.153407	1992.430	17.69	0.42	19.49	0.42	0	2.84	0.12
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>15.614&%3cFONT%20COLOR=%27#CD5B45%27>19%2021%2050.70408&%3cFONT%20COLOR=%27#CD5B45%27>%2b15%2009%2012.2652&N023311274111&290.461267&%2b15.153407&1992.430&17.69&%200.42&19.49&%200.42&0&%20%202.84&%200.12%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66384fda2e9a43&-out.add=.&-source=I/271/out&GSC2.2===N023311211452' class='full'315.84319 21 49.06728+15 09 30.8556N023311211452290.454447+15.1585711992.43014.77 0.41    0 4.49 0.09 415.84319 21 49.06728+15 09 30.8556N023311274548290.454447+15.1585711992.43014.77 0.4116.72 0.410 4.49 0.09 521.76319 21 49.62840+15 09 45.7884N023311211742290.456785+15.1627191992.43016.52 0.42    0 3.16 0.01 621.76319 21 49.62840+15 09 45.7884N023311274838290.456785+15.1627191992.43016.52 0.4217.98 0.410 3.16 0.01 728.94819 21 50.17464+15 09 53.9748N023311211955290.459061+15.1649931992.43015.25 0.42    0 3.76 0.02 828.94819 21 50.17464+15 09 53.9748N023311275051290.459061+15.1649931992.43015.25 0.4217.01 0.410 3.76 0.02 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID	RAJ2000 "h:m:s"	DEJ2000 "d:m:s"	Vmag mag	o_RAs	o_DEs
1	15.686	19 21 49.070733	+15 09 30.54700	7DG30015	19 21 49.0707	+15 09 30.547	15.844	4	3

%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	15.389	19 21 50.70600	+15 09 12.5604	1051-0447325	290.461275	+15.153489	184	50	1977.8	4	6	5	18.42	16.48	18.94	17.17	16.26
2	16.052	19 21 49.05336	+15 09 30.9132	1051-0447289	290.454389	+15.158587	46	76	1978.1	0	0	5	16.20	14.43	16.61	14.58	13.94
3	16.435	19 21 51.16416	+15 09 30.1824	1051-0447333	290.463184	+15.158384	91	165	1983.9	10	0	4		18.31	19.53	18.63	17.38
4	22.150	19 21 49.61088	+15 09 46.1124	1051-0447303	290.456712	+15.162809	48	123	1978.1	-8	0	5	17.40	15.54	17.77	16.21	15.55
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>22.150&%3cFONT%20COLOR=%27#CD5B45%27>19%2021%2049.61088&%3cFONT%20COLOR=%27#CD5B45%27>%2b15%2009%2046.1124&1051-0447303&290.456712&%2b15.162809&%2048&123&1978.1&%20%20%20%20-8&%20%20%20%20%200&5&17.40&15.54&17.77&16.21&15.55%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66384fda2e9a43&-out.add=.&-source=I/284/out&USNO-B1.0===1051-0447350&-out.orig=o' class='full'526.70819 21 51.89880+15 09 20.14201051-0447350290.466245+15.1555951011131984.2 0 04  17.7219.5418.3317.13 629.02119 21 50.17200+15 09 54.05041051-0447315290.459050+15.165014 621101978.1 0 0516.2914.5616.8415.3014.17 729.92319 21 51.93408+15 09 11.67121051-0447351290.466392+15.1532428722611980.0 0 03  17.36  18.5817.20 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20More%20recent%20versions%20available:%20UCAC3%20%28I/315%29%20and%20UCAC4%20%28I/322%29;%20see%20also%20the%20UCAC%20home%20page%20at%20http://ad.usno.navy.mil/ucac/%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	2UCAC	RAJ2000 deg	e_ mas	DEJ2000 deg	e_ mas	UCmag mag	No	Nc	pmRA mas/yr	pmDE mas/yr	2Mkey	Jmag mag	Kmag mag
1	15.984	19 21 49.060032	+15 09 30.97224	37238279	290.4544168	17	+15.1586034	15	15.16	2	2	3.7	1.7	1133933364	12.734	12.041
2	28.867	19 21 50.166144	+15 09 53.89920	37238283	290.4590256	15	+15.1649720	15	15.50	2	2	0.0	-7.0	1133933466	13.183	9.652

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20Naval%20Observatory%20Merged%20Astrometric%20Dataset%20%28NOMAD%29%20contains%0aastrometric%20and%20photometric%20data%20for%20over%201%20billion%20stars%20derived%20from%0athe%20Hipparcos%20%28I/239%29,%20Tycho-2%20%28I/259%29,%20UCAC2%20%28I/289%29,%20and%20USNO-B1.0%0a%28I/284%29%20catalogs%20for%20astrometry%20and%20optical%20photometry,%20supplemented%0aby%202MASS%20%28II/246%29%20near-infrared%20photometry.%3cBR%3e%0a%3cFONT%20SIZE=%27-1%27%3eAn%20efficient%20remote%20query%20program%20%3cB%3efindnomad1%20is%0aavailable%20in%20the%20cdsclient%20%0apackage,%20for%20Unix/Linux%20platforms%0a%3cP%3e%0a

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

Rmag

%22>%5cFONT SIZE=-1magr_

Jmag
magHmag
magKmag
magR

115.26219 21 51.044592+15 09 31.392001051-0463578.M290.4626858+15.1587200M 0.0 0.0 0.0 0.0            15.36813.99613.250   215.38919 21 50.706000+15 09 12.560041051-0463562YM290.4612750+15.1534889B 4.0 6.0 6.0 1.018.350Y17.690Y17.170B15.39114.46814.314   315.98419 21 49.060008+15 09 30.971881051-0463488YM290.4544167+15.1586033C 3.6 6.1 1.7 6.116.310Y    14.580B12.73412.25212.041   416.43219 21 51.163992+15 09 30.179881051-0463581..290.4631833+15.1583833B 10.0 3.0 0.0 6.019.530B    18.630B         522.14819 21 49.610664+15 09 46.109881051-0463512YM290.4567111+15.1628083B -8.0 1.0 0.0 4.017.380Y16.480Y16.210B14.51813.93613.855   622.16019 21 51.616056+15 09 25.354081051-0463601.M290.4650669+15.1570428M 0.0 0.0 0.0 0.0            13.46411.58310.782   723.48419 21 50.944272+15 09 05.132881051-0463574.M290.4622678+15.1514258M 0.0 0.0 0.0 0.0            16.02115.04414.675   824.33519 21 50.510592+15 09 01.512001051-0463555.M290.4604608+15.1504200M 0.0 0.0 0.0 0.0            17.48415.06414.367   924.47319 21 49.948800+15 09 49.448881051-0463532.M290.4581200+15.1637358M 0.0 0.0 0.0 0.0            14.88414.41013.628   1025.15819 21 48.358800+15 09 22.250881051-0463460.M290.4514950+15.1561808M 0.0 0.0 0.0 0.0            14.98713.52912.945   1126.13719 21 49.451256+15 09 00.586081051-0463506.M290.4560469+15.1501628M 0.0 0.0 0.0 0.0            15.77514.31913.608   1226.70619 21 51.898656+15 09 20.139841051-0463612..290.4662444+15.1555944B 0.0 0.0 0.0 0.019.540B    18.330B         1328.86619 21 50.166144+15 09 53.898841051-0463539YM290.4590256+15.1649719C 0.0 6.1 -7.0 6.116.260Y15.390Y15.300B13.18310.474 9.652   1429.42419 21 51.462192+15 09 46.702081051-0463594.M290.4644258+15.1629728M 0.0 0.0 0.0 0.0            15.78213.81613.026   1529.92319 21 51.934008+15 09 11.670121051-0463613..290.4663917+15.1532417B 0.0 0.0 0.0 0.0        18.580B         %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	PM2000	RAJ2000 "h:m:s"	DEJ2000 "d:m:s"	pmRA mas/yr	pmDE mas/yr	Vmag mag	EpRA yr	EpDE yr	2MASS	TYC1	TYC2	TYC3
1	15.969	19 21 49.065939	+15 09 31.05441	1785940	19 21 49.0623	+15 09 31.017	6.0	4.3	15.755	1991.30	1989.24	19214906+1509309
2	29.154	19 21 50.166442	+15 09 54.29778	1785981	19 21 50.1675	+15 09 54.186	-1.3	9.2	15.833	1987.85	1986.05	19215017+1509538

%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	15.919	19 21 49.06488	+15 09 30.9744	192149.0+150930		290.454437	+15.158604	15.121	5	12.734	12.252	12.041
2	21.957	19 21 49.62816	+15 09 45.9900	192149.6+150945		290.456784	+15.162775	16.437	5	14.518	13.937	13.856
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>21.957&%3cFONT%20COLOR=%27#CD5B45%27>19%2021%2049.62816&%3cFONT%20COLOR=%27#CD5B45%27>%2b15%2009%2045.9900&192149.6%2b150945&%20&290.456784&%2b15.162775&16.437&%205&14.518&13.937&13.856%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66384fda2e9a43&-out.add=.&-source=I/304/out&CMC14===192150.1%2b150953&-out.orig=o' class='full'328.93019 21 50.17488+15 09 53.9568192150.1+150953  290.459062+15.16498815.364 513.183     %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	11.428	19 21 49.47408	+15 09 17.8308	N2C6074198	290.456142	+15.154953	1992.430	19.22			17.70	3	3.39	0.52
2	15.616	19 21 50.70432	+15 09 12.2652	N2C6074111	290.461268	+15.153407	1992.430	17.69	19.49	18.17	16.25	0	2.84	0.12
3	15.840	19 21 49.06752	+15 09 30.8556	N2C6074548	290.454448	+15.158571	1992.430	14.77	16.72	15.41	13.78	0	4.49	0.09
4	16.439	19 21 51.17208	+15 09 29.8296	N2C6074457	290.463217	+15.158286	1992.430	19.07	20.83		17.65	3	2.20	0.17
5	21.766	19 21 49.62864	+15 09 45.7920	N2C6074838	290.456786	+15.162720	1992.430	16.52	17.98	17.02	15.36	0	3.16	0.01
6	22.330	19 21 51.47160	+15 09 15.2604	N2C6129694	290.464465	+15.154239	1995.475				17.36	3	2.37	0.32
7	22.364	19 21 51.13272	+15 09 41.4972	N2C6074696	290.463053	+15.161527	1992.430	19.66			18.96	3	1.79	0.12
8	22.617	19 21 51.64224	+15 09 26.9568	N2C6147293	290.465176	+15.157488	1992.430	20.02			17.11	3	1.76	0.41
9	25.963	19 21 50.00688	+15 08 59.1180	N2C6073757	290.458362	+15.149755	1992.430	19.68				3	1.83	0.22
10	26.867	19 21 51.90600	+15 09 19.8432	N2C6074256	290.466275	+15.155512	1992.430	18.70	20.85	18.98	17.01	3	2.34	0.12
11	28.281	19 21 49.28904	+15 09 50.8788	N2C6147434	290.455371	+15.164133	1992.430	20.09				3	1.43	0.09
12	28.951	19 21 50.17488	+15 09 53.9784	N2C6075051	290.459062	+15.164994	1992.430	15.25	17.01	15.65	14.02	0	3.76	0.02

%0a%0a

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

%22h:m:s%22&%">\BegDIVclass='sort-down ' </A>string _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

115.58419 21 50.71656+15 09 12.4308290.461319+15.153453 5.3 3.515.39114.31518.4218.9416.4817.1716.26 6 0 215.86719 21 49.06728+15 09 30.9204290.454447+15.158589 0.6 0.512.73412.04116.2016.6114.4314.5813.94 6 0 316.53919 21 51.17520+15 09 30.0240290.463230+15.158340 9.5 -4.4      19.5318.3118.6317.38 4 0 421.87419 21 49.63224+15 09 45.9216290.456801+15.162756 -5.8 -4.914.51813.85617.4017.7715.5416.2115.55 6 0 526.83319 21 51.90624+15 09 20.0376290.466276+15.155566 -2.7 -2.1      19.5417.7218.3317.13 4 0 628.90119 21 50.18064+15 09 53.9244290.459086+15.164979 -2.4 -2.413.183 9.65216.2916.8414.5615.3014.17 6 0 729.47219 21 51.89856+15 09 11.6532290.466244+15.153237 -15.5 -1.1        17.3618.5817.20 3 1 %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	e_ mag	Hmag mag	e_ mag	Kmag mag	e_ mag	2Mkey	Bmag mag	Rmag mag	Fld	dT yr	fg	fs	M
1	15.585	19 21 50.71535	+15 09 12.4166	XPM 210-0654177	290.461314	+15.153449	5.09	1.29	5.42	1.20	17.688	19.492	18.167	16.246	15.391	0.069	14.469	0.063	14.315	0.093	1133933298	19.0	17.5	513	48.030899	0	0	M
2	15.930	19 21 49.06466	+15 09 30.9960	XPM 210-0654108	290.454436	+15.158610	2.28	2.59	2.61	2.51	14.768	16.718	15.408	13.775	12.734	0.029	12.252	0.036	12.041	0.032	1133933364	16.4	15.2	453	46.805069	0	0	M
3	21.894	19 21 49.63223	+15 09 45.9434	XPM 210-0654135	290.456801	+15.162762	-2.87	-3.50	-2.54	-3.59	16.516	17.978	17.019	15.361	14.518	0.035	13.937	0.054	13.856	0.057	1133933430	17.7	16.6	453	46.805069	0	0	M
4	28.866	19 21 50.17633	+15 09 53.8921	XPM 210-0654156	290.459068	+15.164970	-1.18	-1.35	-0.85	-1.43	15.246	17.010	15.646	14.022	13.183	0.035	10.474		9.652		1133933466	16.6	15.5	453	46.805069	0	0	M
[****ClosingBrace(s)Inserted****]
4	28.866	19 21 50.17633	+15 09 53.8921	XPM 210-0654156	290.459068	+15.164970	-1.18	-1.35	-0.85	-1.43	15.246	17.010	15.646	14.022	13.183	0.035	10.474		9.652		1133933466	16.6	15.5	453	46.805069	0	0	M

%22>\EndTABLESORT

Note: see the UCAC4 document, and the the fix for high proper motion stars. The UCAC home page is available at http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/ucac.
Please acknowledge the usage of the UCAC4