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	0.873	20 32 46.74600	+00 55 36.9228	0900-18671530	308.194775	+00.926923			19.3	19.2	1953.622

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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	0.846	20 32 46.75416	+00 55 36.8400	0909-0511174	308.194809	+00.926900	205	128	1973.0	0	0	4	19.56	19.41	20.09	19.45

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%22> Full

">  _r
arcsec _RAJ2000
"h:m:s" _DEJ2000
"d:m:s"NOMAD1

YM

RAJ2000
degDEJ2000
degr

pmRA
mas/yre_
(...)pmDE
mas/yre_
(...)Bmag
magr_

Vmag
magr_

Rmag
magr_

Jmag
magHmag
magKmag
magR

1 0.84720 32 46.753992+00 55 36.840000909-0574095..308.1948083+00.9269000B 0.0 0.0 0.0 0.020.090B    19.450B         %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	1.016	20 32 46.77144	+00 55 36.5124	N1T0022284	308.194881	+00.926809	1994.524	19.43	20.22		19.09	3	2.62	0.27

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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
1	0.820	20 32 46.75752	+00 55 36.8328	308.194823	+00.926898	7.0	-2.2			19.56	20.09	19.41	19.45		4	0
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%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.820&%3cFONT%20COLOR=%27#CD5B45%27>20%2032%2046.75752&%3cFONT%20COLOR=%27#CD5B45%27>%2b00%2055%2036.8328&308.194823&%2b00.926898&%20%20%20%20%207.0&%20%20%20%20-2.2&%20&%20&19.56&20.09&19.41&19.45&%20&%204&%200%3cBR%3e">\EndTABLESORT

Note:

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	0.462	20 32 46.77286	+00 55 37.1088	308.194887	+00.926975	0.063	0.080	20.223	0.300	19.433	0.300	19.229	0.096	18.199	0.122	2001.7100	2001.7100	7.0	5.9	-2.2	5.9

%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****]
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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 0.46120 32 46.7702238536+00 55 36.847635156308.19489776096+00.9269682021420.660677 7.857 14.930 -6.040 21.439 4.47569e-01   23.789 18.933 25.896 18.999 3.97184e-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	0.594	20 32 46.7659243799	+00 55 37.045996921	N1T0022284	308.19486721000	+00.92694354000	1021021022284	2012.307	3		20.292400	20.223100	19.433200		19.093300				21.778	21.219	20.703	20.458	20.396	19.4912						17.198	16.450	12.032	9.007	22.383	21.509	2.623	0.274	93.4
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1	0.594	20 32 46.7659243799	+00 55 37.045996921	N1T0022284	308.19486721000	+00.92694354000	1021021022284	2012.307	3		20.292400	20.223100	19.433200		19.093300				21.778	21.219	20.703	20.458	20.396	19.4912						17.198	16.450	12.032	9.007	22.383	21.509	2.623	0.274	93.4

%22>\EndTABLESORT

Note: