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	1.008	20 08 38.76816	+12 39 14.1228	0975-18048405	302.161534	+12.653923			17.2	17.6	1951.645
2	14.803	20 08 38.48544	+12 39 27.9216	0975-18048111	302.160356	+12.657756			17.3	15.9	1951.645
3	21.952	20 08 39.96288	+12 39 28.5408	0975-18049658	302.166512	+12.657928			16.3	14.8	1951.645
4	24.386	20 08 37.94616	+12 38 53.4300	0975-18047530	302.158109	+12.648175			16.7	16.5	1951.645
5	26.166	20 08 37.11816	+12 39 06.8328	0975-18046678	302.154659	+12.651898			18.8	17.8	1951.645
6	29.947	20 08 40.67016	+12 39 00.7416	0975-18050421	302.169459	+12.650206			19.7	18.9	1951.645

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

pix&%">\BegDIVclass='sort-down ' </A>dece

1 8.25520 08 39.40032+12 39 14.3928N021122127971302.164168+12.6539981991.54318.37 0.38    3 2.64 0.06 214.70520 08 38.46888+12 39 27.7236N021122128199302.160287+12.6577011991.54315.79 0.3617.35 0.420 3.53 0.05 321.07620 08 39.92400+12 39 27.8604N021122128240302.166350+12.6577391991.54315.30 0.3616.48 0.420 4.35 0.16 425.28220 08 37.92120+12 38 52.6020N021122127679302.158005+12.6479451991.54316.51 0.3617.15 0.420 3.23 0.04 525.73320 08 37.12176+12 39 08.3700N021122127972302.154674+12.6523251991.54317.02 0.3718.80 0.423 6.97 0.63 %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	21.237	20 08 39.926933	+12 39 28.05700	7EA51381	20 08 39.9269	+12 39 28.057	15.930	4	3

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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	8.398	20 08 39.40800	+12 39 14.8428	1026-0664136	302.164200	+12.654123	53	51	1983.1	0	0	4		18.35	20.15	18.56	18.04
2	12.655	20 08 38.18352	+12 39 22.3308	1026-0664108	302.159098	+12.656203	296	280	1966.2	-172	172	3	17.36	17.59			18.53
3	15.047	20 08 38.48544	+12 39 28.1808	1026-0664116	302.160356	+12.657828	67	43	1976.8	2	8	5	17.37	15.90	17.33	16.00	15.44
4	21.524	20 08 39.93888	+12 39 28.2924	1026-0664145	302.166412	+12.657859	91	55	1976.8	0	0	5	16.55	15.36	16.69	15.60	14.88
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>21.524&%3cFONT%20COLOR=%27#CD5B45%27>20%2008%2039.93888&%3cFONT%20COLOR=%27#CD5B45%27>%2b12%2039%2028.2924&1026-0664145&302.166412&%2b12.657859&%2091&%2055&1976.8&%20%20%20%20%200&%20%20%20%20%200&5&16.55&15.36&16.69&15.60&14.88%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6641f132376ef6&-out.add=.&-source=I/284/out&USNO-B1.0===1026-0664098&-out.orig=o' class='full'522.76820 08 37.28544+12 39 15.73201026-0664098302.155356+12.654370 342051971.5 0 02  19.38  19.48   623.32720 08 37.68552+12 39 30.17161026-0664100302.157023+12.658381 63 441971.1 0 02  19.4820.88     724.41720 08 38.67336+12 38 49.74001026-0664120302.161139+12.647150183 491983.1 0 04  18.4420.7018.7617.76 824.82620 08 37.92888+12 38 53.07001026-0664107302.158037+12.648075 401081976.8 0 0517.0216.7317.2816.5716.01 925.02020 08 37.13952+12 39 11.05201026-0664094302.154748+12.653070 41151994.1 0 02      18.3617.92 1025.43920 08 37.10688+12 39 11.56321026-0664093302.154612+12.653212382 331993.2 -70 2623    20.0917.9717.80 1125.50420 08 39.97200+12 39 33.39001026-0664147302.166550+12.659275492 991971.1 0 02  18.6220.17     1226.39520 08 37.10352+12 39 06.75001026-0664092302.154598+12.651875 481011976.8 0 0519.2417.9418.8117.2817.02 1329.82520 08 37.85688+12 39 40.19041026-0664104302.157737+12.661164136 601994.1 0 02      19.0318.07 1429.90320 08 40.65672+12 39 00.45001026-0664160302.169403+12.6501251091251976.8 0 0520.2919.0720.8819.0318.52 %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	21.301	20 08 39.935160	+12 39 28.01628	36370356	302.1663965	73	+12.6577823	94	15.58	2	2	-1.8	-0.9	339356178	14.326	13.893

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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 mag	r_	Vmag mag	r_	Rmag mag	r_	Jmag mag	[****ClosingBrace(s)Inserted****]
">

mag&%">\BegDIVclass='sort-down ' </A>decHmag
magKmag
mag

R

1 8.39820 08 39.408000+12 39 14.839921026-0697493..302.1642000+12.6541222B 0.0 0.0 0.0 0.020.150B    18.560B         212.65720 08 38.183328+12 39 22.330081026-0697464..302.1590972+12.6562028B -172.0 7.0 172.0 7.017.360o    17.590e         315.04720 08 38.485344+12 39 28.180081026-0697472YM302.1603556+12.6578278B 2.0 2.0 8.0 1.015.870Y16.170Y16.000B14.44913.86713.685   421.30120 08 39.935136+12 39 28.015921026-0697502YM302.1663964+12.6577822C -1.7 6.4 -0.9 7.215.580Y15.580Y15.600B14.32613.98413.893   522.76920 08 37.285344+12 39 15.729841026-0697454..302.1553556+12.6543694B 0.0 0.0 0.0 0.0        19.480B         623.32820 08 37.685328+12 39 30.170161026-0697456..302.1570222+12.6583806B 0.0 0.0 0.0 0.020.880B    19.480e         724.41720 08 38.673336+12 38 49.740001026-0697477..302.1611389+12.6471500B 0.0 0.0 0.0 0.020.700B    18.760B         824.82720 08 37.928664+12 38 53.070001026-0697463.M302.1580361+12.6480750B 0.0 0.0 0.0 0.017.280B    16.570B15.99415.59815.243   925.02320 08 37.139328+12 39 11.049841026-0697449..302.1547472+12.6530694B 0.0 0.0 0.0 0.0        18.360B         1025.44320 08 37.106664+12 39 11.559961026-0697448..302.1546111+12.6532111B -70.0 54.0 262.0 4.020.090B    17.970B         1125.50420 08 39.972000+12 39 33.390001026-0697504..302.1665500+12.6592750B 0.0 0.0 0.0 0.020.170B    18.620e         1226.39720 08 37.103328+12 39 06.750001026-0697447YM302.1545972+12.6518750B 0.0 0.0 0.0 0.018.810B17.210Y17.280B16.35915.82715.846   1329.82620 08 37.856664+12 39 40.190041026-0697460..302.1577361+12.6611639B 0.0 0.0 0.0 0.0        19.030B         1429.90220 08 40.656672+12 39 00.450001026-0697518..302.1694028+12.6501250B 0.0 0.0 0.0 0.020.880B    19.030B         %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	21.293	20 08 39.925996	+12 39 28.03104	2191214	20 08 39.9309	+12 39 28.075	-9.7	-5.9	15.999	1992.55	1990.50	20083993+1239281

%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	14.896	20 08 38.48856	+12 39 28.0368	200838.4+123928		302.160369	+12.657788	16.124	3	14.450	13.867	13.685
2	21.358	20 08 39.93696	+12 39 28.0728	200839.9+123928		302.166404	+12.657798	15.700	3	14.326	13.984	13.893
3	24.965	20 08 37.93608	+12 38 52.8396	200837.9+123852		302.158067	+12.648011	16.594	3	15.995

%0a%22>ts_init('!ext/cmc14_8');">\Endscript

Note: This version of the GSC-II has no proper motions, but the limits on brightness which existed on GSC2.2 (F<18.5, B_j<19.5) were removed.

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	8.255	20 08 39.40032	+12 39 14.3964	N1UX027971	302.164168	+12.653999	1991.543	18.37	19.98	19.04	18.11	3	2.64	0.06
2	11.896	20 08 38.21376	+12 39 21.6792	N1UX062467	302.159224	+12.656022	1991.543	20.35				3	1.91	0.64
3	14.704	20 08 38.46912	+12 39 27.7236	N1UX028199	302.160288	+12.657701	1991.543	15.79	17.35	16.49	15.34	0	3.53	0.05
4	21.078	20 08 39.92424	+12 39 27.8604	N1UX028240	302.166351	+12.657739	1991.543	15.30	16.48	15.96	15.08	0	4.35	0.16
5	22.921	20 08 37.27584	+12 39 15.8940	N1UX064638	302.155316	+12.654415	1990.571		21.12			3	1.56	0.36
6	23.107	20 08 37.67928	+12 39 29.7540	N1UX028186	302.156997	+12.658265	1991.543	20.25	21.07			3	1.49	0.40
7	24.923	20 08 38.67816	+12 38 49.2252	N1UX027615	302.161159	+12.647007	1991.543	18.70	20.54		17.82	3	2.29	0.04
8	25.277	20 08 37.92144	+12 38 52.6056	N1UX027679	302.158006	+12.647946	1991.543	16.51	17.15	17.04	16.51	0	3.23	0.04
9	25.730	20 08 37.12200	+12 39 08.3700	N1UX027972	302.154675	+12.652325	1991.543	17.02	18.80	18.12	16.91	3	6.97	0.63
10	29.415	20 08 37.84080	+12 39 39.5892	N1UX028331	302.157670	+12.660997	1991.543	19.08			18.23	3	2.12	0.09
11	29.778	20 08 40.65624	+12 39 00.7128	N1UX027758	302.169401	+12.650198	1992.741	19.26	20.27			3	1.76	0.03

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