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	3.481	12 26 41.39808	-03 55 09.4728	0825-07740365	186.672492	-03.919298			18.5	17.3	1954.394
2	4.910	12 26 41.35536	-03 55 10.7616	0825-07740354	186.672314	-03.919656			18.6	16.9	1955.300

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	APM-ID	RAJ2000 deg	DEJ2000 deg	rmag mag	l_	rClass	rStel	rDiam arcsec	rEll	bmag mag	l_	bClass	bStel	bDiam arcsec	b-r mag	Mflag
1	4.531	12 26 41.34408	-03 55 10.1820	EO1405-0224594	186.672267	-03.919495	20.00	L	0				19.35		1	8.57	11.1	-0.65
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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	4.068	12 26 41.38152	-03 55 10.0128	S20002233399	186.672423	-03.919448	1992.164	16.88	0.43	17.91	0.36	3	5.49	0.53

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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	2.326	12 26 41.49216	-03 55 08.8608	0860-0231206	186.672884	-03.919128	999	935	1973.2	0	0	2		17.32		19.72
2	4.274	12 26 41.37480	-03 55 10.1928	0860-0231205	186.672395	-03.919498	105	91	1976.6	0	0	5	19.55	16.96	18.93	17.23	16.83
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%204.274&%3cFONT%20COLOR=%27#CD5B45%27>12%2026%2041.37480&%3cFONT%20COLOR=%27#CD5B45%27>-03%2055%2010.1928&0860-0231205&186.672395&-03.919498&105&%2091&1976.6&%20%20%20%20%200&%20%20%20%20%200&5&19.55&16.96&18.93&17.23&16.83%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ662b9eaf592ff&-out.add=.&-source=I/284/out&USNO-B1.0===0860-0231203&-out.orig=o' class='full'3 7.06912 26 41.17752-03 55 11.31240860-0231203186.671573-03.9198098105511972.7 0 0418.6218.9920.34  18.74 %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	2.326	12 26 41.491992	-03 55 08.86008	0860-0236099	..	186.6728833	-03.9191278	B	0.0	0.0	0.0	0.0					19.720	B
2	4.272	12 26 41.374656	-03 55 10.18992	0860-0236098	YM	186.6723944	-03.9194972	B	0.0	0.0	0.0	0.0	18.930	B	17.970	Y	17.230	B	16.042	15.240	14.631
3	7.070	12 26 41.177328	-03 55 11.30988	0860-0236096	..	186.6715722	-03.9198083	B	0.0	0.0	0.0	0.0	20.340	B			18.990	e

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3 [****ClosingBrace(s)Inserted****]
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GSC2.3

%22>RAJ2000
degDEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 4.06312 26 41.38176-03 55 10.0092S6CR003399186.672424-03.9194471992.16416.8817.91  16.803 5.49 0.53 %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	4.087	12 26 41.40000	-03 55 10.2000	186.672500	-03.919500	8.8	-31.2	16.043	14.632			17.32			2	0
2	4.120	12 26 41.39208	-03 55 10.1712	186.672467	-03.919492	-0.7	-3.6	16.043	14.632	19.55	18.93	16.96		16.83	5	0
3	8.056	12 26 41.10312	-03 55 11.5140	186.671263	-03.919865	-26.8	-20.5			18.62	20.34	18.99		18.74	4	0

%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ID	RAICRS deg	DEICRS deg	pmRAp mas/yr	pmDEp mas/yr	pmRAx mas/yr	pmDEx mas/yr	Fmag [****ClosingBrace(s)Inserted****]
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Fmag

%20

%22>%5cFONT SIZE=-1magBjmag
mag

Vmag
mag

Nmag
mag

Jmag
mag

e_
mag

Hmag
mag

e_
mag

Kmag
mag

e_
mag

2Mkey

Bmag
mag

Rmag
mag

Fld

dT
yr

fg

fs

M

1 4.06612 26 41.39643-03 55 10.1459XPM 172-0353990186.672485-03.919485 10.99 -0.01 10.46 0.1116.87917.907  16.79816.043 0.09915.241 0.09914.632 0.107 24973384318.617.1 67644.16398200M %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_ mag	alphaEpoch yr	deltaEpoch yr	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)
1	4.120	12 26 41.39208	-03 55 10.1708	186.672467	-03.919492	0.072	0.072	17.907	0.300	16.879	0.300	17.094	0.400	16.246	0.500	1988.6900	1988.6900	-0.7	4.2	-3.6	4.2
2	8.055	12 26 41.10317	-03 55 11.5140	186.671263	-03.919865	0.115	0.115	20.340	0.400	18.990	0.400	19.230	0.400	18.163	0.500	1972.7800	1972.7800	-26.8	6.2	-20.5	6.2

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