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	3.361	13 27 56.37886	-31 00 27.7632	0525-16200561	201.984912	-31.007712			19.1	17.9	1981.667

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	7.017	13 27 56.57209	-31 00 31.1398	0589-0300738	201.985717	-31.008650	664	999	1977.1	-202	542	3	19.62		16.52	19.62
2	7.906	13 27 56.56534	-31 00 32.6521	0589-0300737	201.985689	-31.009070	702	885	1986.7	0	0	2			18.91	19.61

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	RAJ2000 deg	DEJ2000 deg	YM	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	7.016	13 27 56.572008	-31 00 31.14000	0589-0309737	201.9857167	-31.0086500	..	B	-202.0	24.0	542.0	154.0	16.520	B			19.620	B
2	7.904	13 27 56.565336	-31 00 32.64984	0589-0309736	201.9856889	-31.0090694	..	B	0.0	0.0	0.0	0.0	18.910	B			19.610	B

Note: This version of the GSC-II has no proper motions, but the limits on brightness which existed on GSC2.2 (F<18.5, B_j<19.5) were removed.

I/305/out The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)
ReadMe+ftp
2008AJ....136..735L
metaI/305/out

The Full GSC2.3.2 Catalogue (945592683 objects) (945592683 rows)

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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	9.686	13 27 55.38216	-31 00 29.0520	S988007523	201.980759	-31.008070	1977.218		22.25			3	2.27	0.70

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	6.328	13 27 56.54663	-31 00 30.3695	201.985611	-31.008436	-208.6	539.3			19.62	16.52		19.62		3	1
2	7.610	13 27 56.48809	-31 00 33.1560	201.985367	-31.009210	-43.6	-46.5				18.91		19.61		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	6.329	13 27 56.54669	-31 00 30.3699	201.985611	-31.008436	0.133	0.163	16.520	0.400	19.620	0.400	19.264	0.400	21.373	0.500	1977.2000	1977.2000	-208.6	8.5	539.3	8.5
2	7.610	13 27 56.48804	-31 00 33.1560	201.985367	-31.009210	0.163	0.163	18.910	0.400	19.610	0.400	19.384	0.400	19.848	0.500	1986.7200	1986.7200	-43.6	17.1	-46.5	17.1

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	Bjmag mag	Ymag mag	W1mag mag	W2mag mag	W3mag mag	W4mag mag	a pix	e pix	PA pix
1	6.836	13 27 56.3899375200	-31 00 33.081495480	S988079753	201.98495807300	-31.00918930430	2232232079753	2012.000	3		18.732
2	7.429	13 27 55.4082674455	-31 00 41.609842492	S988105121	201.98251060000	-31.00582950000	22322320105121	2010.560	4			17.301	16.820	12.814	8.453
3	9.688	13 27 55.3820800781	-31 00 29.058837891	S988007523	201.98075866699	-31.00807189941	223223207523	1977.220	0	22.250200						2.267	0.702	100.0
4	9.712	13 27 56.7116932800	-31 00 33.242908680	S988074328	201.98629872200	-31.00923414130	2232232074328	2012.000	3		19.265

Note:

II/328/allwise AllWISE Data Release (Cutri+ 2013)
ReadMe+ftp
2014yCat.2328....0C
metaII/328/allwise

The AllWISE data Release (updated version, 16-Feb-2021); please acknowledge the usage of the WISE data products (747634026 rows) (Note)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	AllWISE	RAJ2000 deg	DEJ2000 deg	Im	W1mag mag	e_ mag	W2mag mag	e_ mag	W3mag mag	e_ mag	W4mag mag	e_ mag	Jmag mag	e_ mag	Hmag mag	e_ mag	Kmag mag	e_ mag	ccf	ex	var	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	qph	d2M arcsec	2M
1	7.429	13 27 55.802536	-31 00 20.98625	J132755.80-310020.9	201.9825106	-31.0058295	Im	17.301	0.121	16.820	0.336	12.814		8.453								0000	0	nnnn	480	1053	1953	1138	BBUU		2M

Note:

II/359/vhs_dr4 The VISTA Hemisphere Survey (VHS) catalog DR4.1 (McMahon+, 2013)
ReadMe+ftp
2013Msngr.154...35M
metaII/359/vhs_dr4

The VISTA Hemisphere Survey band-merged multi-waveband catalogues (VHS) DR4.1 of 1,155,634,198 sources (original column names in green) (1155634198 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	SrcID	RAJ2000 deg	DEJ2000 deg	FrameID	PriOrSec	Y-Jpnt mag	J-Hpnt mag	H-Kspnt mag	J-Kspnt mag	Y-Jext mag	J-Hext mag	H-Ksext mag	J-Ksext mag	Mclass	Ypmag mag	Yap3 mag	Yapc3 mag	Yavgap3	Yperrbits	Jpmag mag	Jap3 mag	Japc3 mag	Javgap3	Jperrbits	Hpmag mag	Hap3 mag	Hapc3 mag	Havgap3	Hperrbits	Kspmag mag	Ksap3 mag	Ksapc3 mag	Ksavgap3	Ksperrbits
1	6.836	13 27 56.38994	-31 00 33.0815	472479170409	201.984958	-31.009189	472446402828										1	18.7315	20.1930	20.6390	100.651	0					0					0					0
2	9.712	13 27 56.71169	-31 00 33.2429	472479170410	201.986299	-31.009234	472446402828										1	19.2653	20.3655	20.8115	99.980	0					0					0					0

Note:

II/367/vhs_dr5 The VISTA Hemisphere Survey (VHS) catalog DR5 (McMahon+, 2020)
ReadMe+ftp
2013Msngr.154...35M
metaII/367/vhs_dr5

The VISTA Hemisphere Survey band-merged multi-waveband catalogues (VHS) DR5 of 1,374,207,485 sources (original column names in green) (1374207485 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	SrcID	RAJ2000 deg	DEJ2000 deg	Name	PriOrSec	Y-Jpnt mag	J-Hpnt mag	H-Kspnt mag	J-Kspnt mag	Y-Jext mag	J-Hext mag	H-Ksext mag	J-Ksext mag	Mclass	AY mag	AJ mag	AH mag	AKs mag	Ypmag mag	Yap3 mag	Yapc3	Yavgap3	Yperrbits	Jpmag mag	Jap3 mag	Japc3 mag	Javgap3	Jperrbits	Hpmag mag	Hap3 mag	Hapc3 mag	Havgap3	Hperrbits	Kspmag mag	Ksap3 mag	Ksapc3 mag	Ksavgap3	Ksperrbits
1	6.836	13 27 56.38994	-31 00 33.0815	473664201014	201.984958	-31.009189	VHS J132756.38-310033.0	0									1	0.0699	0.0495	0.0316	0.0207	18.7315	20.1930	20.6390	100.651	0					0					0					0
2	9.712	13 27 56.71169	-31 00 33.2429	473664201015	201.986299	-31.009234	VHS J132756.71-310033.2	0									1	0.0699	0.0495	0.0316	0.0207	19.2653	20.3655	20.8115	99.980	0					0					0					0

Note:

II/385/vst_atlas4 VLT Survey Telescope ATLAS DR4 (Shanks+, 2025)
ReadMe+ftp
2015MNRAS.451.4238S
metaII/385/vst_atlas4

VST-ATLAS DR4 catalog (original column names in green) (155778147 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	Name	Mclass	Uap3 mag	e_ mag	Gap3 mag	e_ mag	Rap3 mag	e_ mag	Iap3 mag	e_ mag	Zap3 mag	e_ mag
1	8.708	13 27 56.51626262523	-31 00 34.2569166185	201.985484427605	-31.009515810172	vst-atlas J132756.52-310034.26	1							21.7520	1.45566e-01

Note:

II/391/ks4dr1 KMTNet Synoptic Survey of Southern Sky (KS4) DR1 (Chang+, 2026)
ReadMe+ftp
2026JKAS...59..179C
metaII/391/ks4dr1

The band-merged single_master catalog (original column names in green) (279909360 rows) (Note)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CoaddID	RAJ2000 deg	DEJ2000 deg	Ndet	GLON deg	GLAT deg	E(B-V) mag	MJD-B d	MJD-V d	MJD-R d	MJD-I d	Bmag mag	e_ mag	Imag mag	e_ mag	Bmag3 mag	e_ mag	Imag3 mag	e_ mag	Bmag5 mag	e_ mag	Imag5 mag	e_ mag	Bmag10 mag	e_ mag	Imag10 mag	e_ mag	FWHM-B arcsec	S/G-B	Rh-B arcsec	Krad-B	Fmax-B ct	PA-B deg	Ell-B	Aimg-B pix	Bimg-B pix	FWHM-I arcsec	S/G-I	Rh-I arcsec	Krad-I	Fmax-I ct	PA-I deg	Ell-I	Aimg-I pix	Bimg-I pix	Flags-B	Ndith-B	SsCt30-B	Ndith-V	SsCt30-V	Ndith-R	SsCt30-R	Flags-I	Ndith-I	SsCt30-I
1	5.207	13 27 56.525618	-31 00 27.50075	6169771098238877824	201.9855234	-31.0076391	1	312.0780947	31.2149816	0.05338	59619.014771	59619.015868	59610.532112	58893.105877			18.7238	0.0534			21.0649	0.0918			20.4790	0.0703			19.5558	0.0548										19.944	0.000	1.2744e+01	7.380	1.5967e+02	-5.60	0.191	3.696	2.990		4	1	4	0	8	0	3	4	1
2	5.506	13 27 56.541243	-31 00 28.26597	6169771098238877952	201.9855885	-31.0078517	1	312.0781180	31.2147627	0.05338	59617.042934	59617.040810	59648.095295	59679.150822	19.5996	0.0676			22.1923	0.1340			21.8363	0.1164			20.6396	0.0740			23.815	0.169	1.6072e+01	7.643	7.9049e+01	-77.40	0.508	5.655	2.785										3	2	17	2	7	2	2		2	17
3	6.014	13 27 55.896543	-31 00 32.45605	6169770995159664000	201.9829023	-31.0090156	1	312.0752383	31.2139947	0.05339	59617.042934	59617.040810	59648.095295	59679.150822	20.1744	0.0771			22.0361	0.1159			21.6414	0.0973			21.0996	0.1101			15.075	0.074	1.3721e+01	8.183	6.5252e+01	42.45	0.284	2.971	2.127										3	2	19	2	7	2	1		2	16
4	6.599	13 27 56.627224	-31 00 28.30418	6169771098238878080	201.9859468	-31.0078623	1	312.0784701	31.2147016	0.05338	59619.014771	59619.015868	59610.532112	58893.105877	18.5279	0.0393			22.1185	0.1384			21.5520	0.0911			20.5089	0.0593			36.469	0.002	2.9946e+01	8.342	5.9381e+01	-11.49	0.434	8.078	4.570										3	4	1	4	0	8	0		4	1
5	7.949	13 27 55.507574	-31 00 28.13814	6169771063879141504	201.9812816	-31.0078161	1	312.0738677	31.2154069	0.05340	59617.042934	59617.040810	59648.095295	59679.150822			18.6200	0.0622			21.8111	0.1160			21.2349	0.1003			19.9759	0.0741										27.738	0.000	1.9291e+01	7.590	1.1056e+02	-6.19	0.356	5.757	3.710		2	15	2	5	2	1	3	2	18

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	13 27 56.114	-31 00 27.13	200.2342	-30.3581	Cen

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