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	6.316	09 24 23.05944	+28 17 45.9024	1125-05890283	141.096081	+28.296084			13.2	14.8	1955.227

%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	3.612	09 24 23.36760	+28 17 46.4100	N23302302644	141.097365	+28.296225	1994.184			13.49	0.35	3	9.98	0.21

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

%22>"h:m:s" ">\BegDIVclass='sort-down ' </A>string _DEJ2000
"d:m:s"USNO-B1.0

RAJ2000
degDEJ2000
dege_RAJ2000
mase_DEJ2000
masEpoch
yrpmRA
mas/yrpmDE
mas/yrNdet

B1mag
magR1mag
magB2mag
magR2mag
magImag
mag 1 2.51509 24 23.32608+28 17 44.44081182-0196079141.097192+28.2956785859991970.1 40 2313.5515.22    14.75 2 2.52709 24 23.39280+28 17 41.02081182-0196081141.097470+28.2947283551171984.4 4 -483  15.80  14.7714.76 3 5.43509 24 23.10408+28 17 45.03121182-0196071141.096267+28.295842 267561984.1 -42 -83  14.45  11.2614.07 4 6.76709 24 23.11344+28 17 47.76001182-0196072141.096306+28.2966002509991977.1 20 46413.6314.22  16.0914.52 5 6.77209 24 23.08008+28 17 39.14161182-0196068141.096167+28.294206 699991984.0 156 -112317.20   9.45  13.51 6 9.78109 24 22.99536+28 17 35.92321182-0196066141.095814+28.293312208 461980.7 24 -103 9.71   9.34 8.82   %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	2.516	09 24 23.326008	+28 17 44.44008	1182-0200121	..	141.0971917	+28.2956778	B	40.0	16.0	2.0	29.0	13.550	o			15.220	e
2	2.529	09 24 23.392656	+28 17 41.02008	1182-0200123	..	141.0974694	+28.2947278	B	4.0	13.0	-48.0	4.0					14.770	B
3	5.436	09 24 23.104008	+28 17 45.03012	1182-0200113	..	141.0962667	+28.2958417	B	-42.0	1.0	-8.0	29.0					11.260	B
4	6.768	09 24 23.113344	+28 17 47.76000	1182-0200114	..	141.0963056	+28.2966000	B	20.0	7.0	46.0	36.0	13.630	o			16.090	B
5	6.773	09 24 23.080008	+28 17 39.14016	1182-0200110	..	141.0961667	+28.2942056	B	156.0	2.0	-112.0	83.0	9.450	B
6	9.784	09 24 22.995336	+28 17 35.91996	1182-0200108	..	141.0958139	+28.2933111	B	24.0	7.0	-10.0	1.0	9.340	B			8.820	B

%0a%0a%3cP%3e%0a%0a%5b%2a%2a%2a%2aClosingBrace%28s%29Inserted%2a%2a%2a%2a%5d

">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. %The data are copyrighted, check %the data use Policy.

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	3.614	09 24 23.36784	+28 17 46.4136	N9BG002644	141.097366	+28.296226	1994.184		13.49	14.89		3	9.98	0.21

%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
1	2.445	09 24 23.32848	+28 17 44.3544	141.097202	+28.295654	39.8	-11.7			13.55		15.22		14.75	3	0
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%202.445&%3cFONT%20COLOR=%27#CD5B45%27>09%2024%2023.32848&%3cFONT%20COLOR=%27#CD5B45%27>%2b28%2017%2044.3544&141.097202&%2b28.295654&%20%20%20%2039.8&%20%20%20-11.7&%20&%20&13.55&%20&15.22&%20&14.75&%203&%200%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ66388c04228ac6&-out.add=.&-source=I/317/sample&PPMXL===4196242532153451977' class='full'2 2.67709 24 23.38272+28 17 40.9272141.097428+28.294702 -4.2 -53.6        15.8014.7714.76 3 0 3 5.45109 24 23.10744+28 17 45.1932141.096281+28.295887 -46.3 -8.0        14.4511.2614.07 3 0 4 6.25309 24 23.08128+28 17 40.0596141.096172+28.294461 150.9 -95.1    17.20      13.51 3 1 5 7.08009 24 23.11008+28 17 48.1668141.096292+28.296713 15.4 48.0    13.63  14.2216.0914.52 4 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	2.359	09 24 23.63428	+28 17 44.6001	141.098476	+28.295722	0.030	0.033	20.726	0.203	20.742	0.204	20.377	0.099	19.899	0.125	2004.2100	2004.2100	0.0	0.0	0.0
2	5.334	09 24 23.24730	+28 17 47.4394	141.096864	+28.296511	1.294	1.899	13.630	0.400	16.090	0.400	17.824	0.118	18.725	0.140	2004.2100	2004.2100	15.4	5.2	48.0	5.2

%0a%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"	RA_ICRS deg	DE_ICRS deg	rmag mag	pmRA mas/yr	[****ClosingBrace(s)Inserted****]
">

mas/yr&%">\BegDIVclass='sort-down ' </A>dece_
(...)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 6.31009 24 23.1466721176+28 17 47.411822274141.09641080404+28.2965127789119.089678 -10.671 46.518 36.149 92.158 1.92318e-02   3.418 40.994 -31.948 44.669 1.38356e-03   4 0PS1Gaia DR9+DR12Sloan2M %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2	RA_ICRS deg	DE_ICRS deg	objID	Epoch yr	Class	Gmag mag	OMag mag	Bjmag mag	Fpgmag mag	Epgmag mag	Npgmag mag	Umag mag	Bmag mag	Vmag mag	umag mag	gmag mag	rmag mag	imag mag	zmag mag	ymag mag	Jmag mag	Hmag mag	Ksmag mag	Zmag mag	Ymag mag	W1mag mag	W2mag mag	W3mag mag	W4mag mag	FUVmag mag	NUVmag mag	a pix	e pix	PA pix
1	2.441	09 24 23.6461584000	+28 17 44.518416000	N9BG034668	141.09852566000	+28.29569956000	1233023034668	2012.976	3										21.486	16.964	16.404	20.428	20.370
[****ClosingBrace(s)Inserted****]
1	2.441	09 24 23.6461584000	+28 17 44.518416000	N9BG034668	141.09852566000	+28.29569956000	1233023034668	2012.976	3										21.486	16.964	16.404	20.428	20.370

%22>\Ahref='VizieR-5?-ref=VIZ66388c04228ac6&-out.add=.&-source=I/353/gsc242&-c=141.09742402000%20%2b28.29621715000,eq=ICRS,rs=2&-out.orig=o' class='full'2 3.50609 24 23.3948308722+28 17 46.221752396N9BG002644141.09742402000+28.29621715000 1233023026442011.2223  15.24460013.489500            21.84919.24319.61421.06721.036                         9.977 0.212 26.3 3 4.81909 24 23.1376997930+28 17 41.995425086N9BG021335141.09640708247+28.29499872919 12330230213352004.2113                  21.97524.67124.80224.36222.827                               4 6.21009 24 23.1353328000+28 17 47.247324000N9BG034667141.09639722000+28.29645759000 12330230346672011.3973                  17.79318.99218.85518.79918.964                               5 8.37109 24 23.9658223223+28 17 48.735859628N9BG028868141.09985759301+28.29687107212 12330230288682004.2113                  22.43324.65724.49424.07122.513                               %0a%0a%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	e_ 10-5deg	DEJ2000 deg	e_ 10-5deg	mag mag	e_ mag	emag mag	Nobs	N1	Ndet	flag
1	8.38	09 24 23.0304	+28 17 37.428	141.09596	41	+28.29373	50	13.895	0.067	0.062	223	249	249	0

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20SDSS%20is%20also%20available%20from%20http://www.sdss.org/%3cP%3e%0a