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	2.891	16 20 43.37016	+37 19 53.9724	1200-07838756	245.180709	+37.331659			16.0	15.2	1954.485

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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	2.841	16 20 43.36944	+37 19 53.9220	EO1093-0055971	245.180706	+37.331645	15.39		1	14.59	13.3	0.20	17.08		1	9.29	16.8	1.69
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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	2.784	16 20 43.37448	+37 19 53.8320	N13222201281	245.180727	+37.331620	1991.283	14.78	0.43	15.41	0.42	3	6.25	0.31

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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	2.849	16 20 43.35672	+37 19 53.9904	1273-0304851	245.180653	+37.331664	70	108	1977.4	0	0	5	16.18	15.03	14.81	14.59	14.12
2	5.626	16 20 43.04952	+37 19 46.3728	1273-0304848	245.179373	+37.329548	307	999	1978.3	-42	-240	3		19.52	20.29	19.71
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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	2.848	16 20 43.356672	+37 19 53.99004	1273-0308006	YM	245.1806528	+37.3316639	B	0.0	0.0	0.0	0.0	17.370	Y	16.640	Y	14.590	B	16.131	15.340	14.907
2	5.630	16 20 43.049328	+37 19 46.36992	1273-0308003	..	245.1793722	+37.3295472	B	-42.0	11.0	-240.0	41.0	20.290	B			19.710	B
3	8.608	16 20 43.458000	+37 19 59.63988	1273-0308007	..	245.1810750	+37.3332333	B	0.0	0.0	0.0	0.0	20.610	B			19.600	e

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	[****ClosingBrace(s)Inserted****]
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%22d:m:s%22&%">\BegDIVclass='sort-down ' </A>stringGSC2.3

RAJ2000
deg

DEJ2000
degEpoch
yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 2.78816 20 43.37472+37 19 53.8356N620001281245.180728+37.3316211991.28314.7815.4116.4114.883 6.25 0.31 %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	3.036	16 20 43.38384	+37 19 54.0588	245.180766	+37.331683	4.5	2.3	16.131	14.908	16.18	14.81	15.03	14.59	14.12	6	0
2	5.377	16 20 43.04256	+37 19 46.7076	245.179344	+37.329641	-49.3	-230.9				20.29	19.52	19.71		3	0
3	9.178	16 20 43.49736	+37 20 00.0996	245.181239	+37.333361	71.3	12.2				20.61	19.60			2	0

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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 3.17916 20 43.39439+37 19 54.1559XPM 254-0353753245.180810+37.331710 4.54 8.59 4.89 8.9614.77515.41416.41314.87516.131 0.10715.341 0.11514.908 0.131 22642356616.015.2 27643.83934000M %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	3.646	16 20 43.557480	+37 19 52.71708	637-051953	245.1814895	+37.3313103	1215	16.559	0	0	47.3	-19.6							0	0	0	0	0	0	0	1	0

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