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	3.463	01 24 56.96472	-26 01 38.1900	0600-00544670	021.237353	-26.027275			18.1	17.6	1987.372

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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	2.270	01 24 56.98920	-26 01 39.3636	S00110113859	021.237455	-26.027601	1996.713	18.23	0.44	18.64	0.25	0	3.92	0.29

%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 3.22001 24 56.98200-26 01 38.35200639-0016706021.237425-26.0273201031931974.0 -12 8520.0917.8518.9118.1417.66 %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	3.222	01 24 56.982000	-26 01 38.34984	0639-0016801	..	021.2374250	-26.0273194	B	-12.0	3.0	8.0	6.0	18.910	B			18.140	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 2.27701 24 56.98920-26 01 39.3564S091003859021.237455-26.0275991996.71318.2318.64  17.733 3.92 0.29 %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	2.789	01 24 56.99976	-26 01 38.7192	021.237499	-26.027422	-5.6	5.7			20.09	18.91	17.85	18.14	17.66	5	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 2.79001 24 56.99976-26 01 38.7190021.237499-26.027422 0.103 0.10318.640 0.30018.228 0.30018.324 0.40017.927 0.5001974.07001974.0700 -5.6 5.5 5.7 5.5 %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"	RAICRS deg	e_ mas	DEICRS deg	e_ mas	ID	Type	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Nobs	Dt yr	Rmag mag	Bmag mag	Nmag mag	Vmag mag	Jmag mag	Hmag mag	Kmag mag
1	2.967	01 24 56.995068	-26 01 38.55294	021.2374794	84.00	-26.0273758	156.00	33093+0003859	0	-6.2	2.6	6.2	4.9	5	45.024	18.228	18.640	17.733

%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	e_ (...)	pmxRA [****ClosingBrace(s)Inserted****]
">

pmxRA

%20

%22>%5cFONT SIZE=-1mas/yre_
(...)

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 2.81301 24 57.0042352457-26 01 38.528264376021.23749662796-26.0274157623819.646180 -6.799 6.988 -7.837 7.007 4.40389e-01   -16.848 9.303 -15.715 9.350 1.47995e-01   5 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	0.155	01 24 57.0840454102	-26 01 41.225280762	S091013116	021.23785018921	-26.02811813354	2001101113116	2013.000	3														19.882
[****ClosingBrace(s)Inserted****]
1	0.155	01 24 57.0840454102	-26 01 41.225280762	S091013116	021.23785018921	-26.02811813354	2001101113116	2013.000	3														19.882

%22>\Ahref='VizieR-5?-ref=VIZ6641f4583d0c4d&-out.add=.&-source=I/353/gsc242&-c=021.23756306000%20-26.02741394000,eq=ICRS,rs=2&-out.orig=o' class='full'2 2.74901 24 57.0270943517-26 01 38.614229580S091003859021.23756306000-26.02741394000 2001101138592012.7653  20.02040018.64020018.228800  17.734000      20.67219.85219.50219.14818.89218.5877                  22.13422.119 3.919 0.289 65.9 3 2.86701 24 57.0114072000-26 01 38.582400000S091020435021.23754753000-26.02738400000 20011011204352011.5453                      18.96518.84319.24018.7455          15.30614.83811.176 8.993           %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	3.192	01 24 56.99112	-26 01 38.3332	J012456.99-260138.3	021.237463	-26.027315	0.221	0.202	Im	15.285	0.043	14.904	0.080	11.288	0.127	9.274	0.538				0000	0	00nn		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