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	4.422	08 16 45.92208	+15 05 51.7308	1050-05655940	124.191342	+15.097703			18.4	16.2	1951.092
2	7.742	08 16 45.66744	+15 05 50.9424	1050-05655915	124.190281	+15.097484			19.2	18.0	1951.092

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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	5.055	08 16 45.86136	+15 05 51.6912	EO0236-0497402	124.191089	+15.097692	16.25		1	13.97	12.9	0.33	18.63		2	14.73	11.4	2.38
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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	4.522	08 16 45.94704	+15 05 51.3420	N231210211897	124.191446	+15.097595	1989.851	16.75	0.42	18.46	0.42	3	4.31	0.23
2	8.374	08 16 45.61728	+15 05 50.9172	N231210211898	124.190072	+15.097477	1989.851	18.29	0.42			0	3.40	0.26

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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	5.002	08 16 45.87888	+15 05 51.5112	1050-0165283	124.191162	+15.097642	165	57	1975.4	0	0	5	19.02	16.31	17.97	15.63	15.53
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%205.002&%3cFONT%20COLOR=%27#CD5B45%27>08%2016%2045.87888&%3cFONT%20COLOR=%27#CD5B45%27>%2b15%2005%2051.5112&1050-0165283&124.191162&%2b15.097642&165&%2057&1975.4&%20%20%20%20%200&%20%20%20%20%200&5&19.02&16.31&17.97&15.63&15.53%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ6635debe33f4f5&-out.add=.&-source=I/284/out&USNO-B1.0===1050-0165279&-out.orig=o' class='full'2 7.34708 16 45.69888+15 05 50.97121050-0165279124.190412+15.0974924501171975.4 0 0519.9918.1919.0916.8017.26 %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	5.005	08 16 45.878664	+15 05 51.51012	1050-0168374	YM	124.1911611	+15.0976417	B	0.0	0.0	0.0	0.0	17.970	B	17.250	Y	15.630	B	16.271	15.377	14.967
2	7.350	08 16 45.698664	+15 05 50.97012	1050-0168370	..	124.1904111	+15.0974917	B	0.0	0.0	0.0	0.0	19.090	B			16.800	B

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3	RAJ2000 deg	DEJ2000 deg	Epoch [****ClosingBrace(s)Inserted****]
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Epoch

%22>%5cFONT SIZE=-1yrFmag
magjmag
magVmag
magNmag
magClass

a
pixe

1 4.51908 16 45.94704+15 05 51.3456N902011897124.191446+15.0975961989.85116.7518.4617.8016.423 4.31 0.23 2 8.36908 16 45.61752+15 05 50.9208N902011898124.190073+15.0974781989.85118.29    17.873 3.40 0.26 %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	4.853	08 16 45.91104	+15 05 51.3060	124.191296	+15.097585	4.5	-5.0	16.272	14.968	19.02	17.97	16.31	15.63	15.53	6	0
2	7.137	08 16 45.71640	+15 05 50.9748	124.190485	+15.097493	11.9	-2.9			19.99	19.09	18.19	16.80	17.26	5	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 mag	Bjmag mag	Vmag [****ClosingBrace(s)Inserted****]
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Vmag

%20

%22>%5cFONT SIZE=-1magNmag
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 4.77008 16 45.92325+15 05 51.2771XPM 210-0277917124.191347+15.097577 81.48 8.99 81.75 9.2616.75418.46317.80216.41516.272 0.11115.377 0.11114.968 0.140 86021472819.218.0 42548.86938500M %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	4.490	08 16 45.93372	+15 05 51.5136	124.191391	+15.097643	0.007	0.007	18.463	0.300	16.754	0.300	17.584	0.081	16.314	0.111	2004.9500	2004.9500	4.5	3.8	-5.0	3.8
2	8.447	08 16 45.60831	+15 05 50.9973	124.190035	+15.097499	0.006	0.006	19.090	0.400	18.287	0.300	19.184	0.083	17.941	0.113	2004.9500	2004.9500	11.9	5.1	-2.9	5.1

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