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	0.629	05 07 30.20880	-06 10 16.0320	0825-01323515	076.875870	-06.171120			16.2	13.9	1955.955

%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	0.767	05 07 30.21408	-06 10 16.4424	0838-0052579	076.875892	-06.171234	253	293	1971.2	0	0	3	15.61	12.24			12.23
2	1.373	05 07 30.19608	-06 10 17.4324	0838-0052578	076.875817	-06.171509	275	420	1965.5	-56	-24	3	18.19	15.53	13.35
3	6.078	05 07 30.27936	-06 10 21.9720	0838-0052580	076.876164	-06.172770	999	999	1970.5	0	0	2		18.26		11.36
[****ClosingBrace(s)Inserted****]
">

%3cEM%3e3&%3cFONT%20COLOR=%27#CD5B45%27>%206.078&%3cFONT%20COLOR=%27#CD5B45%27>05%2007%2030.27936&%3cFONT%20COLOR=%27#CD5B45%27>-06%2010%2021.9720&0838-0052580&076.876164&-06.172770&999&999&1970.5&%20%20%20%20%200&%20%20%20%20%200&2&%20&18.26&%20&11.36&%20%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6638832accd54&-out.add=.&-source=I/284/out&USNO-B1.0===0838-0052581&-out.orig=o' class='full'4 6.32705 07 30.58152-06 10 17.48280838-0052581076.877423-06.1715239994551978.9 0 0219.69      16.72 5 8.96405 07 29.71416-06 10 22.02240838-0052575076.873809-06.1727843389991978.9 0 0219.54      17.33 6 9.76005 07 29.72688-06 10 23.35080838-0052576076.873862-06.173153755 501978.9 0 02  18.44    17.38 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20More%20recent%20versions%20available:%20UCAC3%20%28I/315%29%20and%20UCAC4%20%28I/322%29;%20see%20also%20the%20UCAC%20home%20page%20at%20http://ad.usno.navy.mil/ucac/%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	2UCAC	RAJ2000 deg	e_ mas	DEJ2000 deg	e_ mas	UCmag mag	No	Nc	pmRA mas/yr	pmDE mas/yr	2Mkey	Jmag mag	Kmag mag
1	0.152	05 07 30.166536	-06 10 15.97800	29585575	076.8756939	21	-06.1711050	21	14.09	3	2	-3.0	2.3	130078506	10.822	8.611

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

Jmag

%22>%5cFONT SIZE=-1magHmag
magKmag
magR

1 0.15205 07 30.166536-06 10 15.978000838-0053092YM076.8756939-06.1711050C -2.9 7.6 2.3 7.616.720Y15.310Y15.530e10.822 9.572 8.611   2 6.07505 07 30.279336-06 10 21.969840838-0053093..076.8761639-06.1727694B 0.0 0.0 0.0 0.0        11.360B         3 6.32305 07 30.581328-06 10 17.479920838-0053094..076.8774222-06.1715222B 0.0 0.0 0.0 0.019.690o                 4 8.96405 07 29.713992-06 10 22.019880838-0053089..076.8738083-06.1727833B 0.0 0.0 0.0 0.019.540o                 5 9.76105 07 29.726664-06 10 23.350080838-0053090..076.8738611-06.1731528B 0.0 0.0 0.0 0.0        18.440e         %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-30/%2b50deg%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC14	f_	RAICRS deg	DEICRS deg	r'mag mag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	0.135	05 07 30.17472	-06 10 16.0572	050730.1-061016		076.875728	-06.171127	14.642	2	10.822	9.572	8.611

%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	0.078	05 07 30.17232	-06 10 16.1184	S1N9019364	076.875718	-06.171144	2001.863				11.62	0	12.69	0.28

%0a%0a

Full	_r arcsec	[****ClosingBrace(s)Inserted****]
">

%22>arcsec ">\BegDIVclass='sort-down ' </A>string _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 0.27005 07 30.17832-06 10 16.3416076.875743-06.171206 -65.4 -2.610.822 8.61118.1913.3515.53     4 1 2 0.33005 07 30.18912-06 10 16.1616076.875788-06.171156 -12.0 -3.110.822 8.61115.61  12.24  12.23 4 0 3 6.38805 07 30.59088-06 10 17.0580076.877462-06.171405 23.9 6.1    19.69      16.72 2 0 4 8.99005 07 29.70528-06 10 21.9072076.873772-06.172752 -7.1 -68.7    19.54      17.33 2 0 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%0a%25%25%25%20Introduction%20to%20UCAC4%20VizieR%20page%0a%3cEM%3e%25Note:%20%0a%20%20see%20the%20UCAC4%20document,%20and%20the%0a%20%20the%20fix%20for%20high%20proper%20motion%20stars.%0a%20%20The%20UCAC%20home%20page%20is%20available%20at%0a%20%20http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/ucac.%0a%20%20%3cBR%3ePlease%20%3cB%3eacknowledge%20the%20usage%0a%20%20of%20the%20UCAC4%0a%0a%25%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	UCAC4	RAJ2000 deg	DEJ2000 deg	ePos mas	f.mag mag	of	db	pmRA mas/yr	pmDE mas/yr	Jmag mag	Kmag mag	Bmag mag	Vmag mag	rmag mag	imag mag	H	A	b	h	Z	B	L	N	S
1	0.158	05 07 30.165888	-06 10 15.97224	420-008173	076.8756912	-06.1711034	47	14.197	0	0	5.9	-16.8	10.822	8.611	17.015	15.470	14.674	13.883	0	0	0	0	0	0	0	1	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 [****ClosingBrace(s)Inserted****]
">

e_RAJ2000

%20

%22>%5cFONT SIZE=-1(...)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 0.15905 07 30.16588-06 10 15.9721076.875691-06.171103 0.038 0.02813.350 0.40015.530 0.40014.262 0.08012.521 0.1101983.89001983.8900 5.9 17.0 -16.8 14.8 2 0.33105 07 30.18917-06 10 16.1618076.875788-06.171156 0.115 0.11515.610 0.40012.240 0.40011.660 0.400 9.625 0.5001978.15001978.1500 -12.0 5.2 -3.1 5.2 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-40/%2b50deg%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC15	RA_ICRS deg	DE_ICRS deg	r'mag mag	pflag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	0.140	05 07 30.17424	-06 10 16.0390	050730.1-061016	076.875726	-06.171122	14.531		4	10.822	9.572	8.611

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