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	0.668	07 40 21.36288	+21 24 34.0020	1050-05323053	115.089012	+21.409445			18.9	18.7	1954.972
2	9.708	07 40 20.96808	+21 24 42.0012	1050-05322985	115.087367	+21.411667			19.0	16.6	1954.972

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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	0.916	07 40 21.36072	+21 24 34.3908	EO1310-0359083	115.089003	+21.409553	19.50		1	6.65	5.6	0.34	20.16		1	4.59	7.0	0.66
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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	1.109	07 40 21.39984	+21 24 33.4080	N22300317144	115.089166	+21.409280	1998.075			19.45	0.43	3	3.25	0.29
2	7.529	07 40 21.10704	+21 24 40.5504	N22300317169	115.087946	+21.411264	1998.004	16.81	0.43	18.85	0.42	3	3.00	0.09

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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	0.437	07 40 21.35352	+21 24 33.6816	1114-0159976	115.088973	+21.409356	269	118	1950.0	-2	-2	5	19.03	19.18	19.55	18.71	17.13
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.437&%3cFONT%20COLOR=%27#CD5B45%27>07%2040%2021.35352&%3cFONT%20COLOR=%27#CD5B45%27>%2b21%2024%2033.6816&1114-0159976&115.088973&%2b21.409356&269&118&1950.0&%20%20%20%20-2&%20%20%20%20-2&5&19.03&19.18&19.55&18.71&17.13%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663d6ea4321343&-out.add=.&-source=I/284/out&USNO-B1.0===1114-0159975&-out.orig=o' class='full'2 8.36707 40 21.04608+21 24 41.07241114-0159975115.087692+21.4114095203271950.0 0 0519.0616.8018.6817.0314.99 %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	0.434	07 40 21.353328	+21 24 33.68016	1114-0165718	..	115.0889722	+21.4093556	B	-2.0	0.0	-2.0	0.0	19.550	B			18.710	B
2	8.365	07 40 21.046008	+21 24 41.06988	1114-0165717	YM	115.0876917	+21.4114083	B	0.0	0.0	0.0	0.0	18.680	B	17.620	Y	17.030	B	13.653	13.032	12.807

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC14	f_	RAICRS deg	DEICRS [****ClosingBrace(s)Inserted****]
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DEICRS

%22>%5cFONT SIZE=-1degr'mag
magNt

Jmag
magHmag
magKsmag
mag 1 7.49507 40 21.10488+21 24 40.5000074021.1+212440  115.087937+21.41125016.955 213.65413.03312.808 %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	0.505	07 40 21.32568	+21 24 33.1452	N8I5007144	115.088857	+21.409207	1998.004	18.58	19.45	18.64	18.43	3	2.78	0.18
2	7.532	07 40 21.10704	+21 24 40.5540	N8I5007169	115.087946	+21.411265	1998.004	16.81	18.85	17.80	15.02	3	3.00	0.09

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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 [****ClosingBrace(s)Inserted****]
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fl

%20

%22> 1 0.43907 40 21.35040+21 24 33.4512115.088960+21.409292 -6.6 -10.9    19.0319.5519.1818.7117.13 5 0 2 7.58807 40 21.09552+21 24 40.5432115.087898+21.411262 33.9 -26.213.65412.80819.0618.6816.8017.0314.99 6 1 %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 mag	Bjmag 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	7.423	07 40 21.11235	+21 24 40.4678	XPM 222-0264933	115.087968	+21.411241	40.36	-25.94	40.64	-25.69	16.807	18.854	17.795	15.019	13.654	0.024	13.033	0.025	12.808	0.025	145341896	19.0	16.6	366	42.951859	0	0	M

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