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	8.445	06 28 10.79616	-49 08 53.6928	0375-02545043	097.044984	-49.148248			13.2	13.1	1980.579
2	23.803	06 28 10.13472	-49 09 12.0924	0375-02544918	097.042228	-49.153359			19.8	17.6	1980.579
3	26.692	06 28 14.19072	-49 09 03.2724	0375-02545684	097.059128	-49.150909			16.2	15.5	1980.579
4	29.227	06 28 14.52288	-49 08 45.5928	0375-02545740	097.060512	-49.145998			18.7	17.5	1980.579

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eGuide%20Star%20Catalog%20has%20been%20constructed%20to%20support%20the%20%0aoperational%20need%20of%20the%20Hubble%20Space%20Telescope.%0aIt%20contains%20over%2025%20million%20positions%20for%20about%2019%20million%0aobjects,%20of%20which%20more%20than%2015%20million%20are%20classified%20as%20stars.%0aThe%20version%20%3cB%3e1.2%20is%20a%20new%20astrometric%20reduction%20which%20results%20in%0aabsolute%20position%20errors%20about%200.3-0.4%20arcsec.%0a%28see%20GSC%20pages%20at%20URL%20http://www-gsss.stsci.edu/gsc/gsc.html%29%0a%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Plate	Epoch yr
1	8.34	06 28 10.8072	-49 08 53.880	0811101651	097.04503	-49.14830	0.3	14.18	0.37	0	0	01W3	1977.045

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eGSC-ACT%20%3cEM%3e%28or%20%3cB%3eGSC1.3%29%0ais%20a%20recalibration%20of%20the%20%3cB%3e<%25E%20I/220%7cGSC1.1>,%20the%20catalogue%20constructed%20%0ato%20support%20the%20operational%20need%20of%20the%20Hubble%20Space%20Telescope,%0awith%20the%20%3cB%3e<%25E%20I/246%7cACT>,%20the%20combination%20of%20the%20Astrographic%20Catalogue%0aand%20the%20%3cB%3e%3cEM%3eTycho%20catalogue%20derived%20from%20the%20%3cEM%3e<%25E%20I/239%7cHipparcos>%0amission;%20see%20http://www.projectpluto.com/gsc_act.htm%20for%20more%20details%0aabout%20this%20recalibration.%0a%3cP%3e%0a%22>

>	\BegDIVclass='sort-down ' </A>
dec Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Epoch yr
1	8.43	06 28 10.7976	-49 08 53.772	0811101651	097.04499	-49.14827	0.3	14.19	0.37	0	0	1977.045

Note: The construction of the GSC-II is still in progress: this version has no proper motions, and the magnitude limits are 18.5 in F (red) and 19.5 in J (blue). The data are copyrighted, check the data use Policy.

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	8.543	06 28 10.78608	-49 08 53.5164	S1120020458	097.044942	-49.148199	1992.085	12.93	0.38	13.49	0.26	0	10.01	0.18
2	26.479	06 28 14.17248	-49 09 03.1428	S11200202500	097.059052	-49.150873	1992.085	15.53	0.38	16.25	0.26	0	4.14	0.06
3	29.365	06 28 14.52576	-49 08 45.1968	S11200202554	097.060524	-49.145888	1992.085	18.09	0.38	19.34	0.28	3	3.22	0.07

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

Imag

%22>%5cFONT SIZE=-1mag 1 2.33806 28 11.42016-49 08 53.83320408-0058219097.047584-49.1482875555201980.5 0 02  19.4319.82     2 8.63006 28 10.77744-49 08 53.73240408-0058217097.044906-49.148259186 571984.6 0 04  13.1713.0612.4612.60 319.51906 28 12.97200-49 09 08.20080408-0058224097.054050-49.152278618 651984.5 0 02    20.8220.56   423.85006 28 10.13352-49 09 12.14280408-0058215097.042223-49.153373142 741984.6 0 04  18.5920.5019.1018.97 526.67606 28 14.18736-49 09 03.31200408-0058227097.059114-49.150920 64 431984.6 0 04  15.2316.1615.3314.73 629.25606 28 14.52480-49 08 45.55320408-0058229097.060520-49.145987130 761984.6 0 04  18.1818.9717.9017.39 %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	26.667	06 28 14.187408	-49 09 03.28500	10565363	097.0591142	15	-49.1509125	35	15.66	2	2	-4.5	-2.8	700124036	14.500	14.092

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

mag&%">\BegDIVclass='sort-down ' </A>decHmag
magKmag
mag

R

1 2.34006 28 11.419992-49 08 53.829960408-0058521..097.0475833-49.1482861B 0.0 0.0 0.0 0.019.820B    19.430e         2 8.63106 28 10.777344-49 08 53.729880408-0058519.M097.0449056-49.1482583B 0.0 0.0 0.0 0.013.060B    12.460B14.50013.85213.432   319.51806 28 12.972000-49 09 08.200080408-0058526..097.0540500-49.1522778B 0.0 0.0 0.0 0.020.820B    20.560B         423.84906 28 10.133328-49 09 12.139920408-0058517..097.0422222-49.1533722B 0.0 0.0 0.0 0.020.500B    19.100B         526.66706 28 14.187408-49 09 03.285000408-0058529YM097.0591142-49.1509125C -4.5 6.0 -2.8 6.215.950Y15.520Y15.330B14.50014.19614.092R 629.25606 28 14.524656-49 08 45.549960408-0058531YM097.0605194-49.1459861B 0.0 0.0 0.0 0.018.110Y    17.900B16.65816.03316.274   %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	8.541	06 28 10.78632	-49 08 53.5128	S4CO000458	097.044943	-49.148198	1992.085	12.93	13.49		13.12	0	10.01	0.18
2	14.492	06 28 11.36112	-49 08 39.3576	S4CO014287	097.047338	-49.144266	1992.085	20.43				3	2.69	0.75
3	19.189	06 28 12.94200	-49 09 08.0208	S4CO002484	097.053925	-49.152228	1992.085	19.93	21.00			3	2.28	0.23
4	23.440	06 28 10.14504	-49 09 11.7072	S4CO002466	097.042271	-49.153252	1992.085	18.70	20.76		18.48	3	4.23	0.26
5	26.479	06 28 14.17272	-49 09 03.1392	S4CO002500	097.059053	-49.150872	1992.085	15.53	16.25		14.84	0	4.14	0.06
6	29.367	06 28 14.52576	-49 08 45.1896	S4CO002554	097.060524	-49.145886	1992.085	18.09	19.34		17.34	3	3.22	0.07

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%20The%20limiting%20magnitude%20is%20about%2015.2%20in%20the%20GSC%20photometric%20system.%3cP%3e%0a