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	1.238	10 26 42.40536	+36 40 50.6820	1200-06519334	156.676689	+36.680745			18.5	18.2	1954.255
2	4.637	10 26 42.03888	+36 40 53.4324	1200-06519314	156.675162	+36.681509			15.8	14.9	1954.255
3	12.456	10 26 41.37888	+36 40 55.5600	1200-06519273	156.672412	+36.682100			19.3	19.4	1954.255

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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 [****ClosingBrace(s)Inserted****]
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b-r

%22>%5cFONT SIZE=-1magMflag

1 4.25110 26 42.06672+36 40 53.2200EO1032-0043454156.675278+36.68145016.64   1 40.72 19.0 0.2817.01   1 21.37 24.0 0.37   213.08810 26 43.26336+36 40 56.5104EO1032-0043428156.680264+36.68236420.00L 0      21.62   1 2.16 3.9 1.62   %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	4.418	10 26 42.03048	+36 40 52.9968	N2322110845	156.675127	+36.681388	1989.176	14.83	0.28	15.24	0.27	3	9.81	0.39

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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	2.716	10 26 42.47472	+36 40 52.0428	1266-0184944	156.676978	+36.681123	124	272	1966.2	22	32	3	19.28	18.27		18.03
2	4.464	10 26 42.64080	+36 40 52.2300	1266-0184945	156.677670	+36.681175	999	999	1972.2	0	0	4	20.23	18.87	19.54	20.90
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%204.464&%3cFONT%20COLOR=%27#CD5B45%27>10%2026%2042.64080&%3cFONT%20COLOR=%27#CD5B45%27>%2b36%2040%2052.2300&1266-0184945&156.677670&%2b36.681175&999&999&1972.2&%20%20%20%20%200&%20%20%20%20%200&4&20.23&18.87&19.54&20.90&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663bf95836544a&-out.add=.&-source=I/284/out&USNO-B1.0===1266-0184940&-out.orig=o' class='full'3 4.50210 26 42.03744+36 40 53.22001266-0184940156.675156+36.6814501231201977.3 22 0516.4316.3213.5913.7316.80 4 5.26810 26 41.98872+36 40 53.71321266-0184938156.674953+36.6815876971331974.4 -14 10416.1814.80  14.6717.15 5 6.48110 26 42.80544+36 40 52.76281266-0184946156.678356+36.6813232529351978.2 0 03  19.7319.0919.54   6 8.27410 26 41.75736+36 40 55.05241266-0184936156.673989+36.681959 907021980.4 -28 323  17.3717.02  18.03 7 9.73210 26 41.57088+36 40 54.06241266-0184935156.673212+36.6816848373701974.4 0 0419.8418.38  18.5417.44 814.87910 26 41.11536+36 40 53.92201266-0184934156.671314+36.6816453869551966.2 -50 -40320.5619.94  20.24   %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	2.714	10 26 42.474672	+36 40 52.03992	1266-0188814	Y.	156.6769778	+36.6811222	B	22.0	3.0	32.0	7.0	18.280	o	17.970	Y	18.030	B
2	4.463	10 26 42.640656	+36 40 52.23000	1266-0188815	..	156.6776694	+36.6811750	B	0.0	0.0	0.0	0.0	19.540	B			20.900	B
3	4.503	10 26 42.037344	+36 40 53.22000	1266-0188810	Y.	156.6751556	+36.6814500	B	22.0	4.0	0.0	4.0	18.350	Y			13.730	B
4	5.266	10 26 41.988672	+36 40 53.70996	1266-0188808	Y.	156.6749528	+36.6815861	B	-14.0	21.0	10.0	4.0	16.180	o	17.460	Y	14.670	B
5	6.479	10 26 42.805344	+36 40 52.75992	1266-0188816	..	156.6783556	+36.6813222	B	0.0	0.0	0.0	0.0	19.090	B			19.540	B
6	8.272	10 26 41.757336	+36 40 55.04988	1266-0188806	..	156.6739889	+36.6819583	B	-28.0	3.0	32.0	25.0	17.020	B			17.370	e
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6	8.272	10 26 41.757336	+36 40 55.04988	1266-0188806	..	156.6739889	+36.6819583	B	-28.0	3.0	32.0	25.0	17.020	B			17.370	e

%22>\Ahref='VizieR-5?-ref=VIZ663bf95836544a&-out.add=.&-source=I/297/out&NOMAD1===1266-0188805' class='full'7 9.73310 26 41.570664+36 40 54.059881266-0188805..156.6732111+36.6816833B 0.0 0.0 0.0 0.019.840o    18.540B         814.87810 26 41.115336+36 40 53.919841266-0188804..156.6713139+36.6816444B -50.0 10.0 -40.0 25.020.560o    20.240B         %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	4.418	10 26 42.03072	+36 40 53.0004	N978000845	156.675128	+36.681389	1989.176	14.83	15.24	16.45	16.75	3	9.81	0.39

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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	2.548	10 26 42.47976	+36 40 51.7152	156.676999	+36.681032	17.2	18.5			19.28		18.27	18.03		3	0
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%202.548&%3cFONT%20COLOR=%27#CD5B45%27>10%2026%2042.47976&%3cFONT%20COLOR=%27#CD5B45%27>%2b36%2040%2051.7152&156.676999&%2b36.681032&%20%20%20%2017.2&%20%20%20%2018.5&%20&%20&19.28&%20&18.27&18.03&%20&%203&%200%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663bf95836544a&-out.add=.&-source=I/317/sample&PPMXL===4289308278531931390' class='full'2 4.41410 26 42.03168+36 40 53.0076156.675132+36.681391 14.7 -10.6    16.4313.5916.3213.7316.80 5 0 3 4.79710 26 42.70080+36 40 51.2256156.677920+36.680896 62.6 -83.1    20.2319.5418.8720.90   4 1 4 5.27310 26 41.96976+36 40 53.4540156.674874+36.681515 -21.8 -1.3    16.18  14.8014.6717.15 4 0 5 6.54610 26 42.79224+36 40 53.2380156.678301+36.681455 -10.1 5.6      19.0919.7319.54   3 1 6 8.38810 26 41.75016+36 40 55.1280156.673959+36.681980 -35.9 26.4      17.0217.37  18.03 3 0 710.87610 26 41.46456+36 40 53.9508156.672769+36.681653 -35.6 -13.7    19.84  18.3818.5417.44 4 0 814.71010 26 41.12208+36 40 53.5476156.671342+36.681541 -52.7 -58.6    20.56  19.9420.24   3 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	2.547	10 26 42.47972	+36 40 51.7150	156.676999	+36.681032	0.133	0.133	19.280	0.400	18.030	0.400	18.266	0.400	17.266	0.500	1966.2400	1966.2400	17.2	7.8	18.5	7.8
2	4.414	10 26 42.03163	+36 40 53.0080	156.675132	+36.681391	0.103	0.103	15.241	0.300	14.830	0.300	14.926	0.400	14.529	0.500	1977.3800	1977.3800	14.7	5.4	-10.6	5.4
3	4.797	10 26 42.70082	+36 40 51.2258	156.677920	+36.680896	0.133	0.133	19.540	0.400	20.900	0.400	20.499	0.400	21.470	0.500	1972.2400	1972.2400	62.6	7.4	-83.1	7.4
4	4.854	10 26 41.99862	+36 40 53.2183	156.674994	+36.681450	0.052	0.087	16.180	0.400	14.670	0.400	16.601	0.081	15.810	0.110	2004.1200	2004.1200	-21.8	5.6	-1.3	5.6
5	6.546	10 26 42.79226	+36 40 53.2381	156.678301	+36.681455	0.133	0.133	19.090	0.400	19.540	0.400	19.389	0.400	19.658	0.500	1978.2300	1978.2300	-10.1	7.8	5.6	7.8
6	8.388	10 26 41.75016	+36 40 55.1280	156.673959	+36.681980	0.133	0.133	17.020	0.400	17.370	0.400	17.249	0.400	17.440	0.500	1980.4600	1980.4600	-35.9	7.0	26.4	7.0
7	10.877	10 26 41.46452	+36 40 53.9513	156.672769	+36.681653	0.115	0.115	19.840	0.400	18.540	0.400	18.778	0.400	17.744	0.500	1974.4300	1974.4300	-35.6	5.6	-13.7	5.6
8	14.710	10 26 41.12206	+36 40 53.5479	156.671342	+36.681541	0.133	0.133	20.560	0.400	20.240	0.400	20.312	0.400	19.985	0.500	1966.2400	1966.2400	-52.7	7.8	-58.6	7.8

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>	\BegDIVclass='sort-down ' </A>
dec Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAICRS deg	e_ mas	DEICRS deg	e_ mas	ID	Type	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Nobs	Dt yr	Rmag mag	Bmag mag	Nmag mag	Vmag mag	Jmag mag	Hmag mag	Kmag mag
1	4.694	10 26 42.020245	+36 40 53.27625	156.6750844	193.00	+36.6814656	88.00	61076+0000845	4	-0.6	7.4	2.3	3.3	7	45.765	14.830	15.241	16.745	16.454

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	DE_ICRS deg	rmag mag	pmRA mas/yr	e_ (...)	pmxRA mas/yr	e_ (...)	Chi2RA	pmGRA mas/yr	pmDE mas/yr	e_ (...)	pmxDE mas/yr	e_ (...)	Chi2DE	pmGDE mas/yr	Nobs	Flag	PS1	Gaia	DR9+DR12	Sloan	2M
1	4.951	10 26 41.9944516414	+36 40 53.299274319	156.67494859131	+36.68144678379	19.651043	-8.168	13.512	-11.800	14.122	1.26863e-01		-9.085	8.402	-8.655	8.412	1.34293e-01		5	0	PS1	Gaia	DR9+DR12	Sloan	2M

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