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	7.573	19 35 57.57480	-16 22 09.8832	0675-33693414	293.989895	-16.369412			15.5	14.4	1950.468
2	9.174	19 35 58.14672	-16 22 24.4128	0675-33693951	293.992278	-16.373448			15.4	14.2	1950.468
3	10.588	19 35 58.46472	-16 22 09.8832	0675-33694247	293.993603	-16.369412			18.9	17.8	1950.468
4	16.716	19 35 57.68016	-16 21 59.6520	0675-33693502	293.990334	-16.366570			18.9	17.2	1950.468
5	19.203	19 35 58.90200	-16 22 28.3332	0675-33694642	293.995425	-16.374537			17.2	15.9	1950.468
6	21.971	19 35 57.68016	-16 21 54.3420	0675-33693503	293.990334	-16.365095			14.9	13.8	1950.468
7	27.929	19 35 57.31536	-16 21 49.3812	0675-33693182	293.988814	-16.363717			18.7	17.8	1950.468

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eGuide%20Star%20Catalog%20has%20been%20constructed%20to%20support%20the%20%0aoperational%20need%20of%20the%20Hubble%20Space%20Telescope.%0aIt%20contains%20over%2025%20million%20positions%20for%20about%2019%20million%0aobjects,%20of%20which%20more%20than%2015%20million%20are%20classified%20as%20stars.%0aThe%20version%20%3cB%3e1.2%20is%20a%20new%20astrometric%20reduction%20which%20results%20in%0aabsolute%20position%20errors%20about%200.3-0.4%20arcsec.%0a%28see%20GSC%20pages%20at%20URL%20http://www-gsss.stsci.edu/gsc/gsc.html%29%0a%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Plate [****ClosingBrace(s)Inserted****]
">

Plate

%22>Epoch
yr 121.4219 35 57.6624-16 21 54.9360629800947293.99026-16.36526 0.315.03 0.40 0300CN1980.529 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eGSC-ACT%20%3cEM%3e%28or%20%3cB%3eGSC1.3%29%0ais%20a%20recalibration%20of%20the%20%3cB%3e<%25E%20I/220%7cGSC1.1>,%20the%20catalogue%20constructed%20%0ato%20support%20the%20operational%20need%20of%20the%20Hubble%20Space%20Telescope,%0awith%20the%20%3cB%3e<%25E%20I/246%7cACT>,%20the%20combination%20of%20the%20Astrographic%20Catalogue%0aand%20the%20%3cB%3e%3cEM%3eTycho%20catalogue%20derived%20from%20the%20%3cEM%3e<%25E%20I/239%7cHipparcos>%0amission;%20see%20http://www.projectpluto.com/gsc_act.htm%20for%20more%20details%0aabout%20this%20recalibration.%0a%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Epoch yr
1	21.64	19 35 57.6552	-16 21 54.720	0629800947	293.99023	-16.36520	0.3	15.07	0.43	0	3	1980.529

%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	7.257	19 35 57.55680	-16 22 10.4664	S303012115285	293.989820	-16.369574	1985.622	14.00	0.43	15.27	0.42	3	5.27	0.24
2	9.253	19 35 58.13112	-16 22 24.6036	S303012115284	293.992213	-16.373501	1985.622	14.15	0.43	15.51	0.42	3	4.85	0.18
3	9.998	19 35 58.43544	-16 22 10.3080	S303012114882	293.993481	-16.369530	1985.622	18.20	0.44	19.11	0.43	0	2.41	0.06
4	19.284	19 35 58.89024	-16 22 28.6608	S303012114607	293.995376	-16.374628	1985.622	16.06	0.43	17.25	0.42	0	3.26	0.07
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>19.284&%3cFONT%20COLOR=%27#CD5B45%27>19%2035%2058.89024&%3cFONT%20COLOR=%27#CD5B45%27>-16%2022%2028.6608&S303012114607&293.995376&-16.374628&1985.622&16.06&%200.43&17.25&%200.42&0&%20%203.26&%200.07%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663fe4b11ed948&-out.add=.&-source=I/271/out&GSC2.2===S303012131' class='full'521.79919 35 57.64920-16 21 54.5760S303012131293.990205-16.3651601985.62213.15 0.4314.75 0.420 6.73 0.22 %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	2.760	19 35 57.80880	-16 22 18.7500	0736-0758085	293.990870	-16.371875	100	351	1977.7	0	0	4		17.98	20.22	18.74	17.68
2	7.399	19 35 57.54336	-16 22 10.4412	0736-0758075	293.989764	-16.369567	131	57	1972.8	0	0	5	15.79	14.16	15.87	14.35	13.39
3	9.360	19 35 58.11408	-16 22 24.8232	0736-0758089	293.992142	-16.373562	163	100	1972.8	0	0	5	16.19	14.06	16.13	14.49	13.75
4	9.733	19 35 58.41744	-16 22 10.4016	0736-0758093	293.993406	-16.369556	173	36	1972.8	0	0	5	19.86	17.80	19.55	18.34	17.93
5	14.095	19 35 56.92416	-16 22 19.7328	0736-0758065	293.987184	-16.372148	580	300	1966.9	0	0	2		18.32	21.17
6	14.352	19 35 56.91936	-16 22 20.4204	0736-0758064	293.987164	-16.372339	299	374	1977.7	-20	-44	4		18.23	20.72	18.80	17.40
7	14.700	19 35 57.58944	-16 22 02.0100	0736-0758077	293.989956	-16.367225	175	160	1966.7	-20	-40	4	19.96	17.11	20.25	18.29
8	19.080	19 35 58.86480	-16 22 28.7724	0736-0758100	293.995270	-16.374659	134	37	1972.8	0	0	5	18.01	15.79	17.80	16.23	15.49
9	21.632	19 35 57.64608	-16 21 54.7524	0736-0758081	293.990192	-16.365209	108	85	1972.2	0	0	5	15.61	13.86	14.80	13.53	13.18
10	24.620	19 35 58.32216	-16 21 52.3908	0736-0758091	293.993009	-16.364553	14	164	1983.0	0	0	2			20.49	19.60
11	26.186	19 35 59.53344	-16 22 05.4912	0736-0758109	293.998056	-16.368192	441	90	1984.5	0	0	2			21.32	20.34
12	27.455	19 35 57.27936	-16 21 50.0400	0736-0758072	293.988664	-16.363900	114	219	1972.8	0	0	5	19.66	17.82	19.67	18.12	17.46
13	28.028	19 35 57.67008	-16 21 48.2616	0736-0758082	293.990292	-16.363406	187	74	1984.5	0	0	2			20.73	19.26
14	29.246	19 35 57.68016	-16 21 47.0232	0736-0758083	293.990334	-16.363062	853	329	1983.0	0	0	2			20.27	19.63
[****ClosingBrace(s)Inserted****]
14	29.246	19 35 57.68016	-16 21 47.0232	0736-0758083	293.990334	-16.363062	853	329	1983.0	0	0	2			20.27	19.63

%22>\EndTABLESORT

Note: More recent versions available: UCAC3 (I/315) and UCAC4 (I/322); see also the UCAC home page at http://ad.usno.navy.mil/ucac/

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	6.886	19 35 57.541152	-16 22 11.15400	25886229	293.9897548	28	-16.3697650	37	14.71	2	2	-9.5	-31.2	1288942735	13.115	12.465
2	8.961	19 35 58.126176	-16 22 24.31524	25886236	293.9921924	15	-16.3734209	18	14.34	3	2	-2.3	-4.3	1288942721	12.772	12.059
3	21.497	19 35 57.699480	-16 21 54.78516	25886233	293.9904145	24	-16.3652181	24	13.86	4	2	12.3	-16.1	1288942756	12.323	11.638

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

r_

%20

%22>Vmag
mag

r_

Rmag
mag

r_

Jmag
mag

Hmag
mag

Kmag
mag

R

1 2.76119 35 57.808656-16 22 18.750000736-0818643..293.9908694-16.3718750B 0.0 0.0 0.0 0.020.220B    18.740B         2 6.88719 35 57.541128-16 22 11.154000736-0818633YM293.9897547-16.3697650C -9.4 7.8 -31.2 7.914.710Y14.200Y14.350B13.11512.52312.465   3 8.96019 35 58.126128-16 22 24.314880736-0818647YM293.9921922-16.3734208C -2.3 7.6 -4.3 7.715.060Y14.720Y14.490B12.77212.16512.059   4 9.73319 35 58.417344-16 22 10.400160736-0818651..293.9934056-16.3695556B 0.0 0.0 0.0 0.019.550B    18.340B         514.09719 35 56.923992-16 22 19.729920736-0818622..293.9871833-16.3721472B 0.0 0.0 0.0 0.021.170B    18.320e         614.35219 35 56.919336-16 22 20.420040736-0818621.M293.9871639-16.3723389B -20.0 10.0 -44.0 13.020.720B    18.800B16.01015.81015.285   714.70119 35 57.589344-16 22 02.010000736-0818634..293.9899556-16.3672250B -20.0 4.0 -40.0 4.020.250B    18.290B         819.07719 35 58.864656-16 22 28.769880736-0818658YM293.9952694-16.3746583B 0.0 0.0 0.0 0.017.080Y16.210Y16.230B14.59214.13813.941   921.49719 35 57.699456-16 21 54.785160736-0818641YM293.9904144-16.3652181C 12.2 7.7 -16.1 7.714.440Y14.020Y13.530B12.32311.73511.638   1023.26919 35 57.344664-16 21 54.140040736-0818630YM293.9889361-16.3650389Y -194.6 9.0 -334.8 9.0    17.970Y    15.92913.37813.137   1124.62019 35 58.321992-16 21 52.390080736-0818649..293.9930083-16.3645528B 0.0 0.0 0.0 0.020.490B    19.600B         1226.18519 35 59.533344-16 22 05.490120736-0818667..293.9980556-16.3681917B 0.0 0.0 0.0 0.021.320B    20.340B         1327.45519 35 57.279336-16 21 50.040000736-0818629..293.9886639-16.3639000B 0.0 0.0 0.0 0.019.670B    18.120B         1428.03019 35 57.670008-16 21 48.260160736-0818639..293.9902917-16.3634056B 0.0 0.0 0.0 0.020.730B    19.260B         1529.25019 35 57.679992-16 21 47.019960736-0818640..293.9903333-16.3630611B 0.0 0.0 0.0 0.020.270B    19.630B         %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	6.911	19 35 57.54288	-16 22 11.0964	193557.5-162211		293.989762	-16.369749	14.677	2	13.115	12.523	12.465
2	8.965	19 35 58.12728	-16 22 24.3120	193558.1-162224		293.992197	-16.373420	14.490	2	12.772	12.165	12.059
3	19.231	19 35 58.88904	-16 22 28.5996	193558.8-162228		293.995371	-16.374611	16.205	2	14.593	14.139	13.941
4	21.548	19 35 57.69696	-16 21 54.7380	193557.6-162154		293.990404	-16.365205	13.975	2	12.323	11.735	11.638

%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	2.664	19 35 57.79368	-16 22 18.5592	SA3D015286	293.990807	-16.371822	1985.622	19.19	20.54			3	2.14	0.10
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%202.664&%3cFONT%20COLOR=%27#CD5B45%27>19%2035%2057.79368&%3cFONT%20COLOR=%27#CD5B45%27>-16%2022%2018.5592&SA3D015286&293.990807&-16.371822&1985.622&19.19&20.54&%20&%20&3&%20%202.14&%200.10%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663fe4b11ed948&-out.add=.&-source=I/305/out&GSC2.3===SA3D015285&-out.orig=o' class='full'2 7.26019 35 57.55704-16 22 10.4592SA3D015285293.989821-16.3695721985.62214.0015.27  13.320 5.27 0.24 3 9.25019 35 58.13112-16 22 24.6000SA3D015284293.992213-16.3735001985.62214.1515.51  13.630 4.85 0.18 410.00319 35 58.43568-16 22 10.3044SA3D014882293.993482-16.3695291985.62218.2019.11  17.740 2.41 0.06 513.96519 35 56.94240-16 22 20.1828SA3D014738293.987260-16.3722731985.62218.7921.08  17.363 2.76 0.28 614.38219 35 57.62904-16 22 02.1864SA3D056337293.990121-16.3672741980.533  21.21    0 1.78 0.21 719.28419 35 58.89048-16 22 28.6572SA3D014607293.995377-16.3746271985.62216.0617.25  15.470 3.26 0.07 821.80619 35 57.64944-16 21 54.5688SA3D000031293.990206-16.3651581985.62213.1514.75  12.883 6.73 0.22 924.98819 35 58.34568-16 21 52.1028SA3D015287293.993107-16.3644731985.62219.5221.02    3 2.03 0.10 1026.71919 35 59.57928-16 22 05.6712SA3D014933293.998247-16.3682421985.62220.2021.63    3 1.62 0.19 1128.12219 35 57.28032-16 21 49.3344SA3D056336293.988668-16.3637041980.533  19.94    3 2.41 0.23 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%20The%20limiting%20magnitude%20is%20about%2015.2%20in%20the%20GSC%20photometric%20system.%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	PPMX	RAJ2000 deg	DEJ2000 deg	pmRA mas/yr	pmDE mas/yr	Cmag mag	Rmag mag	Jmag mag	Hmag mag	Kmag mag	Nobs	P	sub
1	21.508	19 35 57.69744	-16 21 54.7776	193557.6-162154	293.990406	-16.365216	8.83	7.71	15.030	14.234	12.323	11.735	11.638	6		O

%0a%0a