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	0.921	15 05 13.49016	-43 31 00.4728	0450-19333637	226.306209	-43.516798			17.8	17.7	1982.315
2	3.344	15 05 13.41888	-43 30 56.3004	0450-19333571	226.305912	-43.515639			14.4	17.5	1982.315

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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	2.320	15 05 13.47384	-43 30 57.3012	S2331302117173	226.306141	-43.515917	1979.248			16.08	0.43	3	9.35	0.55
2	6.164	15 05 13.15776	-43 30 54.3960	S2331302101443	226.304824	-43.515110	1989.584	13.94	0.43			3	15.94	0.44

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>	\BegDIVclass='sort-down ' </A>
dec 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	1.824	15 05 13.48200	-43 31 01.4232	0464-0356287	226.306175	-43.517062	355	650	1989.9	0	0	2		17.64		18.53
2	2.399	15 05 13.38936	-43 30 57.3408	0464-0356285	226.305789	-43.515928	278	999	1986.4	0	0	3		17.02	14.83	18.11
3	2.502	15 05 13.37688	-43 31 01.9524	0464-0356284	226.305737	-43.517209	133	104	1986.4	-56	-88	3		18.21	16.98	18.63

Note: The Naval Observatory Merged Astrometric Dataset (NOMAD) contains astrometric and photometric data for over 1 billion stars derived from the Hipparcos (I/239), Tycho-2 (I/259), UCAC2 (I/289), and USNO-B1.0 (I/284) catalogs for astrometry and optical photometry, supplemented by 2MASS (II/246) near-infrared photometry.
An efficient remote query program findnomad1 is available in the cdsclient package, for Unix/Linux platforms

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	1.821	15 05 13.482000	-43 31 01.41996	0464-0367598	..	226.3061750	-43.5170611	B	0.0	0.0	0.0	0.0					18.530	B
2	2.399	15 05 13.389336	-43 30 57.34008	0464-0367596	..	226.3057889	-43.5159278	B	0.0	0.0	0.0	0.0	14.830	B			18.110	B
3	2.501	15 05 13.376664	-43 31 01.94988	0464-0367595	..	226.3057361	-43.5172083	B	-56.0	8.0	-88.0	6.0	16.980	B			18.630	B

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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 2.32415 05 13.47408-43 30 57.2976S9DE117173226.306142-43.5159161979.248  16.08    3 9.35 0.55 2 6.17115 05 13.15776-43 30 54.3888S9DE101443226.304824-43.5151081989.58413.94      3 15.94 0.44 %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	2.608	15 05 13.36248	-43 31 02.0028	226.305677	-43.517223	-55.7	-89.2				16.98	18.21	18.63		3	0
2	3.067	15 05 13.36896	-43 30 56.7108	226.305704	-43.515753	3.3	13.0				14.83	17.02	18.11		3	0

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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_ [****ClosingBrace(s)Inserted****]
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e_

%20

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

e_
mag

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yr

deltaEpoch
yr

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mas/yr

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pmDE
mas/yr

e_
(...)

1 2.60915 05 13.36246-43 31 02.0032226.305677-43.517223 0.133 0.13316.980 0.40018.630 0.40018.174 0.40019.359 0.5001986.41001986.4100 -55.7 21.0 -89.2 21.0 2 3.06615 05 13.36893-43 30 56.7113226.305704-43.515753 0.133 0.13314.830 0.40018.110 0.40017.827 0.40020.027 0.5001986.41001986.4100 3.3 21.0 13.0 21.0 %0a%0a%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	e_ mas	DE_ICRS deg	e_ mas	Source	Plx mas	e_ mas	PM mas/yr	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	RUWE	FG e-/s	e_ e-/s	Gmag mag	e_ mag	FBP e-/s	e_ e-/s	BPmag mag	e_ mag	FRP e-/s	e_ e-/s	RPmag mag	e_ mag	BP-RP mag	RVDR2 km/s	e_ km/s	Tefftemp K	loggtemp [****ClosingBrace(s)Inserted****]
loggtemp ">
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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%203.720&%3cFONT%20COLOR=%27#CD5B45%27>15%2005%2013.3157433087&%3cFONT%20COLOR=%27#CD5B45%27>-43%2030%2056.239167644&226.30548226379&%205.7539&-43.51562199101&%204.3674&5908345342410482304&%20&%20&%20&%20&%20&%20&%20&%20&%206.6332e%2b01&%201.5010e%2b00&21.133057&%3cFONT%20COLOR=%27#CD5B45%27>%200.024723&%201.2714e%2b02&%202.8418e%2b01&20.077812&%3cFONT%20COLOR=%27#CD5B45%27>%200.242693&%201.0986e%2b02&%201.6600e%2b01&19.645828&%3cFONT%20COLOR=%27#CD5B45%27>%200.164100&%200.431984&%20&%20&%20&%20&%3cFONT%20COLOR=%27#CD5B45%27>%20&%3cFONT%20COLOR=%27#CD5B45%27>%20&%3cFONT%20COLOR=%27#CD5B45%27>%20&%3cFONT%20COLOR=%27#CD5B45%27>%20&%3cFONT%20COLOR=%27#CD5B45%27>21.133057&%3cFONT%20COLOR=%27#CD5B45%27>%200.024723&%3cFONT%20COLOR=%27#CD5B45%27>%206.6332e%2b01&%3cFONT%20COLOR=%27#CD5B45%27>226.30548226379&%3cFONT%20COLOR=%27#CD5B45%27>-43.51562199101%3cBR%3e%0a %0a%0a