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	6.504	11 20 00.73416	+61 58 55.8012	1500-05418935	170.003059	+61.982167			19.4	18.4	1953.209
2	7.908	11 19 59.94816	+61 59 02.8428	1500-05418909	169.999784	+61.984123			16.9	16.8	1953.209

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cB%3e%3cFONT%20COLOR=%27#CD5B45%27>%20The%20current%20version%20includes%20only%20the%20North%20%28POSS-I%20plates%29%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	APM-ID	RAJ2000 deg	DEJ2000 deg	rmag mag	l_	rClass	rStel	rDiam arcsec	rEll	bmag mag	l_	bClass	bStel	bDiam arcsec	b-r mag	Mflag
1	6.705	11 20 00.01800	+61 59 01.5432	EO0712-0013065	170.000075	+61.983762	16.61		2	21.59	18.2	0.44	17.69		1	20.04	16.6	1.08
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%206.705&%3cFONT%20COLOR=%27#CD5B45%27>11%2020%2000.01800&%3cFONT%20COLOR=%27#CD5B45%27>%2b61%2059%2001.5432&EO0712-0013065&170.000075&%2b61.983762&16.61&%20&%202&%20%2021.59&%20%2018.2&%200.44&17.69&%20&%201&%20%2020.04&%20%2016.6&%20%201.08&%20%3cBR%3e">\EndTABLESORT

Note: The construction of the GSC-II is still in progress: this version has no proper motions, and the magnitude limits are 18.5 in F (red) and 19.5 in J (blue). The data are copyrighted, check the data use Policy.

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	8.399	11 19 59.98632	+61 59 03.3036	N21213031892	169.999943	+61.984251	1993.305	17.15	0.42	17.37	0.42	3	5.80	0.44

%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	3.335	11 20 00.09552	+61 58 57.6912	1519-0193582	170.000398	+61.982692	999	999	1976.2	0	0	2	19.34				18.29
2	5.249	11 19 59.73000	+61 59 00.2004	1519-0193578	169.998875	+61.983389	418	999	1986.7	-160	90	4	19.65		19.75	17.23	18.49
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%205.249&%3cFONT%20COLOR=%27#CD5B45%27>11%2019%2059.73000&%3cFONT%20COLOR=%27#CD5B45%27>%2b61%2059%2000.2004&1519-0193578&169.998875&%2b61.983389&418&999&1986.7&%20%20-160&%20%20%20%2090&4&19.65&%20&19.75&17.23&18.49%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ662ac47b18557c&-out.add=.&-source=I/284/out&USNO-B1.0===1519-0193580&-out.orig=o' class='full'3 5.84911 19 59.91000+61 59 00.80161519-0193580169.999625+61.9835561091691982.1 16 83  19.06  18.9718.15 4 6.46511 20 00.73272+61 58 55.52041519-0193585170.003053+61.982089 99 191982.5 8 -14319.73  20.2019.35   5 7.10711 20 00.81288+61 58 56.17201519-0193586170.003387+61.982270534 451973.5 16 4419.8718.6119.7619.74   6 8.33311 19 59.93280+61 59 03.28201519-0193581169.999720+61.984245 623401979.5 0 0516.7616.5616.1416.4918.05 %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 mag	r_	Jmag mag	Hmag mag	Kmag mag	R
1	3.333	11 20 00.095328	+61 58 57.69012	1519-0200654	..	170.0003972	+61.9826917	B	0.0	0.0	0.0	0.0	19.340	o
2	5.249	11 19 59.730000	+61 59 00.20004	1519-0200650	..	169.9988750	+61.9833889	B	-160.0	17.0	90.0	63.0	19.750	B			17.230	B
3	5.848	11 19 59.910000	+61 59 00.80016	1519-0200652	..	169.9996250	+61.9835556	B	16.0	4.0	8.0	6.0					18.970	B
4	6.465	11 20 00.732672	+61 58 55.52004	1519-0200657	..	170.0030528	+61.9820889	B	8.0	3.0	-14.0	0.0	20.200	B			19.350	B
5	7.105	11 20 00.812664	+61 58 56.16984	1519-0200658	..	170.0033861	+61.9822694	B	16.0	16.0	4.0	1.0	19.760	B			19.740	B
6	8.331	11 19 59.932656	+61 59 03.27984	1519-0200653	Y.	169.9997194	+61.9842444	B	0.0	0.0	0.0	0.0	18.350	Y	17.770	Y	16.490	B
[****ClosingBrace(s)Inserted****]
6	8.331	11 19 59.932656	+61 59 03.27984	1519-0200653	Y.	169.9997194	+61.9842444	B	0.0	0.0	0.0	0.0	18.350	Y	17.770	Y	16.490	B

%22>\EndTABLESORT

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	7.371	11 20 00.85800	+61 58 55.8012	N7LF001890	170.003575	+61.982167	1993.305	19.58	20.70			3	2.54	0.22
2	8.403	11 19 59.98632	+61 59 03.3072	N7LF001892	169.999943	+61.984252	1993.305	17.15	17.37	18.25	18.53	3	5.80	0.44

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

fl

%22> 1 3.99611 19 59.90160+61 58 58.9404169.999590+61.983039 -35.5 29.9    19.34      18.29 2 0 2 4.95911 19 59.71272+61 58 59.8908169.998803+61.983303 -168.7 86.6    19.6519.75  17.2318.49 4 0 3 5.63811 19 59.91384+61 59 00.5856169.999641+61.983496 10.3 6.1        19.0618.9718.15 3 0 4 6.43011 20 00.73032+61 58 55.2216170.003043+61.982006 2.7 -16.1    19.7320.20  19.35   3 0 5 7.03411 20 00.80808+61 58 55.9056170.003367+61.982196 14.3 2.6    19.8719.7618.6119.74   4 0 6 8.49511 19 59.93424+61 59 03.4440169.999726+61.984290 -5.0 6.8    16.7616.1416.5616.4918.05 5 0 %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	4.959	11 19 59.71275	+61 58 59.8911	169.998803	+61.983303	0.115	0.133	19.750	0.400	17.230	0.400	17.247	0.400	15.514	0.500	1984.9900	1984.9900	-168.7	5.9	86.6	6.2
2	6.703	11 20 00.76853	+61 58 55.3158	170.003202	+61.982032	0.067	0.124	20.200	0.400	19.350	0.400	19.584	0.092	18.748	0.119	2001.3700	2001.3700	2.7	6.4	-16.1	6.4
3	7.034	11 20 00.80807	+61 58 55.9059	170.003367	+61.982196	0.115	0.115	20.698	0.300	19.575	0.300	19.800	0.400	18.887	0.500	1973.5000	1973.5000	14.3	5.7	2.6	5.7
4	8.412	11 19 59.97145	+61 59 03.3307	169.999881	+61.984259	0.035	0.029	17.374	0.300	17.149	0.300	17.679	0.082	16.949	0.111	2001.3700	2001.3700	-5.0	4.8	6.8	4.8

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a