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	3.979	19 33 34.98216	-17 38 45.5712	0675-33552908	293.395759	-17.645992			19.1	18.8	1950.468
2	9.465	19 33 34.62936	-17 38 42.2304	0675-33552505	293.394289	-17.645064			19.8	17.9	1982.086

%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	0.525	19 33 35.22240	-17 38 45.1248	S303012227030	293.396760	-17.645868	1991.584	16.34	0.21	17.01	0.14	3	4.33	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 [****ClosingBrace(s)Inserted****]

">

%22> Full

">  _r
arcsec _RAJ2000
"h:m:s" _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 0.90519 33 35.19600-17 38 45.24000723-1072756293.396650-17.645900219 341984.1 0 02    17.6516.06   2 3.03519 33 35.05488-17 38 45.99240723-1072754293.396062-17.646109185 901984.1 0 02    19.0817.77   3 5.06319 33 34.92408-17 38 46.80240723-1072748293.395517-17.6463341123491972.2 -18 -18520.4718.9020.0819.0118.44 4 9.41719 33 34.63200-17 38 42.27000723-1072736293.394300-17.645075 85 431972.2 0 03  19.0520.7919.80   %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	0.905	19 33 35.196000	-17 38 45.24000	0723-1116501	..	293.3966500	-17.6459000	B	0.0	0.0	0.0	0.0	17.650	B			16.060	B
2	3.038	19 33 35.054664	-17 38 45.98988	0723-1116499	..	293.3960611	-17.6461083	B	0.0	0.0	0.0	0.0	19.080	B			17.770	B
3	5.063	19 33 34.924008	-17 38 46.79988	0723-1116493	..	293.3955167	-17.6463333	B	-18.0	3.0	-18.0	10.0	20.080	B			19.010	B
4	9.417	19 33 34.632000	-17 38 42.27000	0723-1116481	..	293.3943000	-17.6450750	B	0.0	0.0	0.0	0.0	20.790	B			19.800	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 [****ClosingBrace(s)Inserted****]
">

%3cEM%3e%20%3cFONT%20COLOR=%27#CD5B45%27>_RAJ2000

%20

%22>%5cFONT SIZE=-1"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 0.52519 33 35.22240-17 38 45.1176SA3E027030293.396760-17.6458661991.58416.3417.01  18.503 4.33 0.21 2 5.33419 33 35.12520-17 38 40.1784SA3E063275293.396355-17.6444941985.62220.50      3 1.46 0.23 3 9.68519 33 34.61424-17 38 42.1836SA3E027012293.394226-17.6450511991.58419.6720.37    3 2.05 0.11 %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	1.080	19 33 35.18376	-17 38 45.2508	293.396599	-17.645903	-12.9	3.5				17.65		16.06		2	0
2	2.772	19 33 35.07240	-17 38 45.9096	293.396135	-17.646086	13.3	7.5				19.08		17.77		2	0
3	5.033	19 33 34.93080	-17 38 46.9788	293.395545	-17.646383	-18.9	-25.7			20.47	20.08	18.90		18.44	4	0
4	9.298	19 33 34.63824	-17 38 42.3816	293.394326	-17.645106	-1.5	-2.3				20.79	19.05			2	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	[****ClosingBrace(s)Inserted****]
">

mag&%">\BegDIVclass='sort-down ' </A>dece_
magmagRF
mag

e_
mag

magG
mag

e_
mag

magGrvs
mag

e_
mag

alphaEpoch
yr

deltaEpoch
yr

pmRA
mas/yr

e_
(...)

pmDE
mas/yr

e_
(...)

1 1.08119 33 35.18372-17 38 45.2512293.396599-17.645903 0.163 0.16317.007 0.30016.337 0.30016.492 0.40015.902 0.5001984.14001984.1400 -12.9 21.9 3.5 21.9 2 2.77219 33 35.07242-17 38 45.9099293.396135-17.646086 0.163 0.16319.080 0.40017.770 0.40018.009 0.40016.969 0.5001984.14001984.1400 13.3 21.9 7.5 21.9 3 5.03319 33 34.93080-17 38 46.9790293.395545-17.646383 0.115 0.11520.080 0.40018.900 0.40019.131 0.40018.178 0.5001968.95001968.9500 -18.9 6.0 -25.7 6.0 4 9.29719 33 34.63829-17 38 42.3819293.394326-17.645106 0.163 0.16320.369 0.30019.665 0.30019.827 0.40019.212 0.5001965.49001965.4900 -1.5 10.8 -2.3 10.8 %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	e_ mas	DE_ICRS deg	e_ mas	Source	Plx mas	pmRA mas/yr	pmDE mas/yr	RADEcor	Dup	<FG> e-/s	e_ e-/s	<Gmag> mag	Var
1	4.641	19 33 35.104999870	-17 38 41.07232101	293.3962708328	6.678	-17.6447423114	7.726	4179993053006098304				0.962	0	1.1264e+02	2.0541e+00	20.396	NOT_AVAILABLE
2	4.779	19 33 34.945272387	-17 38 46.80886878	293.3956053016	1.695	-17.6463357969	1.973	4179992292807268608				0.942	0	4.2188e+02	2.3187e+00	18.962	NOT_AVAILABLE
3	9.176	19 33 34.643410551	-17 38 42.55692152	293.3943475440	3.496	-17.6451547004	3.929	4179993048712956800				0.952	0	1.8320e+02	2.0241e+00	19.867	NOT_AVAILABLE

%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"	RAJ2000 deg	DEJ2000 deg	ipix	comp	pmRA mas/yr	pmDE mas/yr	[****ClosingBrace(s)Inserted****]
">

mas/yr&%">\BegDIVclass='sort-down ' </A>decJmag
magHmag
mag

Kmag
mag

B1mag
mag

B2mag
mag

R1mag
mag

R2mag
mag

Imag
mag

GaiaId

Gmag
mag

Clone

Nosc

1 4.56419 33 34.955591280-17 38 46.57780536293.3956482970-17.64627161265076112860332293774   -9.834 -15.406      20.4720.0818.90  18.44417999229280726860818.962     2 9.20219 33 34.643085168-17 38 42.48336948293.3943461882-17.64513426935076112860780538032   0.310 -4.903        20.7919.05    417999304871295680019.867     %0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	e_ mas	DE_ICRS deg	e_ mas	Source	Plx mas	e_ mas	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Dup	FG e-/s	e_ e-/s	Gmag mag	e_ mag	FBP e-/s	e_ e-/s	BPmag mag	e_ mag	FRP e-/s	e_ e-/s	RPmag mag	e_ mag	BP-RP mag	RV km/s	e_ km/s	Teff K	AG mag	E(BP-RP) mag	Rad solRad	[****ClosingBrace(s)Inserted****]
solRad
">
	\BegDIVclass='sort-down '
</A>
decLum solLum
1	4.639	19 33 35.1066748542	-17 38 40.949581798	293.39627133527	0.9963	-17.64474273566	1.0928	4179993053006098304	0.8820	1.3200	-1.433	2.269	-8.017	2.123	1	1.2394e+02	1.3142e+00	20.4553	0.0115	4.6126e+01	4.6511e+00	21.1915	0.1095	1.4602e+02	8.9535e+00	19.3509	0.0666	1.8406
2	4.782	19 33 34.9533178011	-17 38 46.709100730	293.39560455245	0.3135	-17.64633624432	0.3427	4179992292807268608	-0.1972	0.4473	-7.585	0.643	-6.541	0.581	0	4.3917e+02	1.6285e+00	19.0818	0.0040	1.9860e+02	8.3149e+00	19.6064	0.0455	3.9814e+02	1.0166e+01	18.2618	0.0277	1.3446
3	9.174	19 33 34.6510888644	-17 38 42.487106761	293.39434874622	0.6026	-17.64515279057	0.6611	4179993048712956800	-0.5883	0.8892	-6.815	1.181	-4.061	1.023	0	1.8953e+02	1.4220e+00	19.9942	0.0081	1.0823e+02	6.4249e+00	20.2655	0.0645	1.6603e+02	5.6744e+00	19.2115	0.0371	1.0540

%0a%0a