VizieR

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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.

I/252/out The USNO-A2.0 Catalogue (Monet+ 1998)
ReadMe+ftp

metaI/252/out

The Full Catalogue (526280881 rows) (Note)

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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	4.068	02 38 16.19544	+40 04 12.3924	1275-01626540	039.567481	+40.070109			18.0	18.5	1951.971

Note: The USNO-B Catalog presents positions, proper motions, magnitudes un blue, red and infrared, as well as star/galaxy estimators for 1,045,175,762 objects derived from 3,648,832,040 separate observations. The data were taken from scans of 7,435 Schmidt plates taken from various sky surveys during the last 50 years.
USNO-B1.0 catalog was created by Dave Monet and collaborators at http://www.nofs.navy.mil/data/fchpix/
Note that the star/galaxy estimators may be mixed up in dense regions.

I/284/out The USNO-B1.0 Catalog (Monet+ 2003)
ReadMe+ftp
2003AJ....125..984M
metaI/284/out

The Whole-Sky USNO-B1.0 Catalog of 1,045,913,669 sources (1045175762 rows)

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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	4.315	02 38 16.11288	+40 04 14.8800	1300-0045534	039.567137	+40.070800	786	489	1965.9	-16	46	3	18.28	18.46	15.93
2	8.489	02 38 15.81744	+40 04 11.1108	1300-0045531	039.565906	+40.069753	30	109	1973.8	0	0	2	17.98				16.12

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

I/297/out NOMAD Catalog (Zacharias+ 2005)
ReadMe+ftp
2004AAS...205.4815Z
metaI/297/out

The NOMAD-1 Catalog (1117612732 rows)

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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	4.318	02 38 16.112664	+40 04 14.88000	1300-0045942	..	039.5671361	+40.0708000	B	-16.0	19.0	46.0	12.0	15.930	B			18.460	e
2	8.491	02 38 15.817344	+40 04 11.11008	1300-0045939	..	039.5659056	+40.0697528	B	0.0	0.0	0.0	0.0	17.980	o

I/317/sample

The PPMXL Catalog (Roeser+ 2010)

ReadMe+ftp

2010AJ....139.2440R

PPMXL catalog of positions and proper motions on the ICRS (910469430 rows)

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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	4.143	02 38 16.12752	+40 04 14.6352	039.567198	+40.070732	-9.7	42.1			18.28	15.93	18.46			3	0
2	8.413	02 38 15.82896	+40 04 11.0100	039.565954	+40.069725	1.0	2.3			17.98				16.12	2	0

Note:

I/324/igsl3 The Initial Gaia Source List (IGSL) (Smart, 2013)
ReadMe+ftp
2014A&A...570A..87S
metaI/324/igsl3

IGSL3 data release (1,222,598,530 sources) (1222598530 rows)

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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_ mag	magGrvs mag	e_ mag	alphaEpoch yr	deltaEpoch yr	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)
1	4.143	02 38 16.12753	+40 04 14.6348	039.567198	+40.070732	0.133	0.133	15.930	0.400	18.460	0.400	17.972	0.400	19.755	0.500	1965.9100	1965.9100	-9.7	6.7	42.1	6.7

I/353/gsc242

The Guide Star Catalog, Version 2.4.2 (GSC2.4.2) (STScI, 2020)

ReadMe+ftp

2008AJ....136..735L

Guide Star Catalogue, Version 2.4.2 (original column names in green) (3485671481 rows)

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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	5.391	02 38 16.0328448000	+40 04 13.373400000	NCLL058658	039.56680352000	+40.07038150000	1333302158658	2012.386	3													20.043
2	6.379	02 38 16.9953432000	+40 04 17.295852000	NCLL050009	039.57081393000	+40.07147107000	1333302150009	2012.749	3													21.497	20.997

Note:

II/311/wise WISE All-Sky Data Release (Cutri+ 2012)
ReadMe+ftp
2012wise.rept....1C
metaII/311/wise

The WISE All-Sky data Release; please acknowledge the usage of the WISE data products (563921584 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	WISE	RAJ2000 deg	DEJ2000 deg	eeMaj arcsec	eeMin arcsec	Im	W1mag mag	e_ mag	W2mag mag	e_ mag	W3mag mag	e_ mag	W4mag mag	e_ mag	Jmag mag	Hmag mag	Kmag mag	ccf	ex	var	d2M arcsec	2M
1	7.018	02 38 15.92068	+40 04 12.0774	J023815.92+400412.0	039.566336	+40.070022	0.220	0.183	Im	14.263	0.047	14.043	0.065	10.831	0.108	8.225					0000	3	nnnn		2M

Note:

II/349/ps1 The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)
ReadMe+ftp
2016arXiv161205560C
metaII/349/ps1

Pan-STARRS DR1 catalogue (original column names in green) (1919106885 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	objID	f_objID	Qual	e_RAJ2000 (...)	e_DEJ2000 arcsec	Epoch d	Ns	Nd	gmag mag	e_ mag	gKmag mag	e_ mag	gFlags	rmag mag	e_ mag	rKmag mag	e_ mag	rFlags	imag mag	e_ mag	iKmag mag	e_ mag	iFlags	zmag mag	e_ mag	zKmag mag	e_ mag	zFlags	ymag mag	e_ mag	yKmag mag	e_ mag	yFlags
1	5.391	02 38 16.03284480	+40 04 13.3734000	039.566803520	+40.070381500	156080395668135137	310456320	37	0.0577	0.0577	56227.386076390	0	3					0					0	20.0426	0.0558	18.2463	0.0299	16777496					0					0
2	6.379	02 38 16.99534320	+40 04 17.2958520	039.570813930	+40.071471070	156080395708576381	436527104	52	0.1009	0.3708	56254.748981480	4	9					16416					114720	21.4974	0.0346	21.1249	0.1426	115000	20.9970	0.1692			115000					114720

V/158/morxv2

Millions of Optical Radio/X-ray Associations (MORX) v2 (Flesch, 2023)

ReadMe+ftp

2023yCat.5158....0F

The catalogue (3115575 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	Name	Type	Rmag mag	Bmag mag	Comment	R	B	z	Cite	Zcite	RXpct pct	QSOpct pct	galpct pct	starpct pct	Xraypct pct	CX-ID	XMM-ID	Swift-ID	OtherXID	radiopct pct	VLASS-ID	FIRST-ID	LoTSS-ID	RACS-ID	NVSS-ID	Lobe1	Lobe2	Lobedist arcsec
1	4.383	02 38 16.106688	+40 04 14.80008	039.5671112	+40.0707778	J023816.10+400414.8	R	18.55	18.60	p	-	-		MQ		68	64	3	1						68			ILDJ023816.09+400412.3

VI/42/out

Identification of a Constellation From Position (Roman 1987)

ReadMe+ftp

1987PASP...99..695R

Compute constellation name from Position (357 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA1875 deg	DE1875 deg	Cst
1	0.1	02 38 16.488	+40 04 14.78	037.6062	+39.5267	And

Target Name (resolved by Sesame) or Position:	Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)	Radius Box size