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	0.556	04 34 15.43536	-54 21 19.3428	0300-01373950	068.564314	-54.355373			17.6	17.6	1980.827

%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	0.544	04 34 15.40272	-54 21 19.2240	S01112022522	068.564178	-54.355340	1994.989	18.04	0.37	18.57	0.25	3	4.04	0.34

%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 0.51504 34 15.44136-54 21 19.30320356-0034637068.564339-54.355362 37 851987.1 0 04  17.2217.7716.5918.27 %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	0.512	04 34 15.441336	-54 21 19.29996	0356-0034830	..	068.5643389	-54.3553611	B	0.0	0.0	0.0	0.0	17.770	B			16.590	B

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

Nmag

%20

%22>%5cFONT SIZE=-1magClass

a
pix

e

1 0.54104 34 15.40272-54 21 19.2204S12A002522068.564178-54.3553391994.98918.0418.57  18.633 4.04 0.34 %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	0.432	04 34 15.44016	-54 21 19.2204	068.564334	-54.355339	11.1	5.8				17.77	17.22	16.59	18.27	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_ [****ClosingBrace(s)Inserted****]
">

e_

%20

%22>%5cFONT SIZE=-1magalphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 0.43204 34 15.44014-54 21 19.2202068.564334-54.355339 0.115 0.11518.565 0.30018.039 0.30018.162 0.40017.680 0.5001987.16001987.1600 11.1 17.4 5.8 17.4 %0a%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	0.540	04 34 15.3968926596	-54 21 19.194517172	S12A002522	068.56417846680	-54.35533905029	201112022522	1994.990	3			18.565300	18.039800		18.629700										17.394	16.841	16.577			16.289	16.068	12.988	9.635			4.043	0.337	92.5
[****ClosingBrace(s)Inserted****]
1	0.540	04 34 15.3968926596	-54 21 19.194517172	S12A002522	068.56417846680	-54.35533905029	201112022522	1994.990	3			18.565300	18.039800		18.629700										17.394	16.841	16.577			16.289	16.068	12.988	9.635			4.043	0.337	92.5

%22>\Ahref='VizieR-5?-ref=VIZ6635e11c38d15f&-out.add=.&-source=I/353/gsc242&-c=068.56421500110%20-54.35541571160,eq=ICRS,rs=2&-out.orig=o' class='full'2 0.75004 34 15.4116002640-54 21 19.496561760S12A022539068.56421500110-54.35541571160 20111202225392012.0003                               17.036 16.502 16.086                       3 1.86404 34 15.3238513680-54 21 17.224330680S12A021868068.56384938070-54.35478453630 20111202218682012.0003                               19.066                           4 5.99104 34 15.3113690640-54 21 12.903267240S12A030953068.56379737110-54.35358424090 20111202309532012.0003                               19.916                           %0a%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"	WISE	RAJ2000 deg	DEJ2000 deg	eeMaj arcsec	eeMin arcsec	Im	W1mag mag	e_ mag	W2mag mag	e_ mag	W3mag mag	e_ mag	W4mag mag	e_ mag	Jmag mag	Hmag mag	Kmag mag	ccf	ex	var	d2M arcsec	2M
1	0.468	04 34 15.39476	-54 21 19.0395	J043415.39-542119.0	068.564145	-54.355289	0.263	0.244	Im	16.450	0.048	16.296	0.103	13.494		10.212					0000	0	11nn		2M

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

%3cEM%3e%20%3cFONT%20COLOR=%27#CD5B45%27>_DEJ2000

%20

%22>%5cFONT SIZE=-1"d:m:s"AllWISE

RAJ2000
deg

DEJ2000
deg

Im

W1mag
mag

e_
mag

W2mag
mag

e_
mag

W3mag
mag

e_
mag

W4mag
mag

e_
mag

Jmag
mag

e_
mag

Hmag
mag

e_
mag

Kmag
mag

e_
mag

ccf

ex

var

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

qph

d2M
arcsec

2M

1 0.33604 34 15.405636-54 21 18.94034J043415.40-542118.9068.5641901-54.3552612Im16.289 0.03916.068 0.07812.988   9.635              000001nnn 244 195 48 196AAUU  2M %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	DES	CoadID	Aimg pix	Bimg pix	PA deg	S/Gg	S/Gr	S/Gi	S/Gz	S/GY	gmag mag	rmag mag	imag mag	zmag mag	Ymag mag	gFlag	rFlag	iFlag	zFlag	YFlag
1	0.694	04 34 15.40488000	-54 21 19.4112000	068.564187000	-54.355392000	J043415.40-542119.4	473664836	6.170	3.691	4.48405	0.035	0.031	0.030	0.028	0.001	19.0135	18.6218	18.4368	18.3137	18.2780	2	2	2	2	2
2	5.933	04 34 15.32184000	-54 21 12.9456000	068.563841000	-54.353596000	J043415.32-542112.9	473665041	1.932	1.803	71.81265	0.400	0.076	0.292	0.109	0.091	24.6671	23.6777	21.9606	21.4486	21.0262	3	3	3	3	3
3	7.712	04 34 16.15824000	-54 21 23.2668000	068.567326000	-54.356463000	J043416.15-542123.2	473665200	1.963	1.848	73.94936	0.098	0.023	0.009	0.000	0.001	23.6440	22.8221	22.6985	21.9937	22.8521	0	0	0	0	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