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)

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	0.470	20 21 21.12888	-20 21 41.2632	0675-35288783	305.338037	-20.361462			16.1	16.7	1953.619

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.

I/271/out

The GSC 2.2 Catalogue (STScI, 2001) ReadMe+ftp metaI/271/out The Full GSC2.2.1 Catalogue (455851237 objects) (455851237 rows)

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	0.327	20 21 21.13488	-20 21 41.8572	S331133331079	305.338062	-20.361627	1977.688			17.17	0.35	0	2.95	0.04

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)

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	0.097	20 21 21.12072	-20 21 41.7420	0696-0808427	305.338003	-20.361595	130	160	1961.6	0	0	3	16.70	16.95	17.15

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)

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	0.095	20 21 21.120672	-20 21 41.73984	0696-0882621	..	305.3380028	-20.3615944	B	0.0	0.0	0.0	0.0	17.150	B			16.950	e

Note: Zone -30/+50deg

I/304/out

Carlsberg Meridian Catalog 14 (CMC14) (CMC, 2006) ReadMe+ftp metaI/304/out The full CMC-14 catalog (around 95.85million sources in the region -30 to +50°) (95858475 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC14	f_	RAICRS deg	DEICRS deg	r'mag mag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	0.164	20 21 21.12504	-20 21 41.6088	202121.1-202141		305.338021	-20.361558	17.285	1

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)

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	0.325	20 21 21.13488	-20 21 41.8536	SC5B031079	305.338062	-20.361626	1977.688		17.17			0	2.95	0.04

I/317/sample

The PPMXL Catalog (Roeser+ 2010) ReadMe+ftp 2010AJ....139.2440R metaI/317/sample PPMXL catalog of positions and proper motions on the ICRS (910469430 rows)

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	0.274	20 21 21.11904	-20 21 41.9580	305.337996	-20.361655	-4.4	-12.1			16.70	17.15	16.95			3	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)

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	0.274	20 21 21.11904	-20 21 41.9580	305.337996	-20.361655	0.133	0.133	17.168	0.300	16.950	0.400	16.996	0.400	16.746	0.500	1961.6300	1961.6300	-4.4	11.7	-12.1	11.7

Note: Zone -40/+50deg

I/327/cmc15

Carlsberg Meridian Catalog 15 (CMC15) (CMC, 2011) ReadMe+ftp metaI/327/cmc15 The full CMC-15 catalog (134653515 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CMC15	RA_ICRS deg	DE_ICRS deg	r'mag mag	pflag	Nt	Jmag mag	Hmag mag	Ksmag mag
1	0.172	20 21 21.12551	-20 21 41.6052	202121.1-202141	305.338023	-20.361557	17.285		1

I/337/gaia

Gaia DR1 (Gaia Collaboration, 2016) ReadMe+ftp 2016A&A...595A...1G metaI/337/gaia Sample of GaiaSource data (Download Gaia Sources as vo table, fits or csv here) (original column names in green) (1142679769 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	e_ mas	DE_ICRS deg	e_ mas	Source	Plx mas	pmRA mas/yr	pmDE mas/yr	RADEcor	Dup	<FG> e-/s	e_ e-/s	<Gmag> mag	Var
1	0.044	20 21 21.117972298	-20 21 41.69498292	305.3379915512	15.240	-20.3615819397	4.993	6860123972233506176				0.174	0	1.0218e+02	2.6122e+00	20.501	NOT_AVAILABLE

Note:

I/339/hsoy

Hot Stuff for One Year (HSOY) (Altmann+, 2017) ReadMe+ftp 2017A&A...600L...4A metaI/339/hsoy The HSOY catalogue (583001653 sources) (original column names in green) (583001653 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	ipix	comp	pmRA mas/yr	pmDE mas/yr	Jmag mag	Hmag mag	Kmag mag	B1mag mag	B2mag mag	R1mag mag	R2mag mag	Imag mag	GaiaId	Gmag mag	Clone	Nosc
1	0.112	20 21 21.121712040	-20 21 41.63257692	305.3380071335	-20.3615646047	5122403675172499166		-3.508	-4.162				16.70	17.15	16.95			6860123972233506176	20.501

I/345/gaia2

Gaia DR2 (Gaia Collaboration, 2018) ReadMe+ftp 2018A&A...616A...1G metaI/345/gaia2 Gaia data release 2 (Gaia DR2). (Download all Gaia Sources as VOTable, FITS or CSV here. Query from the command line using find_gaia_dr2 available in cdsclient here) (original column names in green) (1692919135 rows)

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	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Dup	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	RV km/s	e_ km/s	Teff K	AG mag	E(BP-RP) mag	Rad solRad	Lum solLum
1	0.043	20 21 21.1179350125	-20 21 41.692195039	305.33799139589	13.7200	-20.36158116529	5.4161	6860123976531511552							1	1.0040e+02	3.7299e+00	20.6841	0.0403	8.5498e+01	1.8965e+01	20.5215	0.2408	8.9233e+01	2.2240e+01	19.8856	0.2706	0.6359

I/350/gaiaedr3

Gaia EDR3 (Gaia Collaboration, 2020) ReadMe+ftp 2021A&A...649A...1G metaI/350/gaiaedr3 Gaia data early release 3 (Gaia EDR3). (Download all Gaia Sources as VOTable, FITS or CSV here. Query from the command line using find_gaia_edr3 available in cdsclient here) (original column names in green) (1811709771 rows)

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 [cm/s2]	PS1	SDSSDR13	SkyMapper2	URAT1	GmagCorr mag	e_ mag	FGCorr mag	RAJ2000 deg	DEJ2000 deg
1	0.046	20 21 21.1181222166	-20 21 41.699074877	305.33799217590	5.3591	-20.36158307635	1.7846	6860123976531511552									1.0936e+02	3.6894e+00	20.590237	0.036733	7.3662e+01	2.0890e+01	20.670427	0.307912	6.8969e+01	1.4408e+01	20.151255	0.226852	0.519173					83563053379916476				20.590237	0.036733	1.0936e+02	305.33799217590	-20.36158307635

Note:

I/351/gps1_p

The extended Gaia-PS1-SDSS (GPS1+) proper motion catalog (Tian+, 2020) ReadMe+ftp 2020ApJS..248...28T metaI/351/gps1_p Extended Gaia-PS1-SDSS (GPS1+) proper motion catalog (original column names in green) (390405023 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	DE_ICRS deg	rmag mag	pmRA mas/yr	e_ (...)	pmxRA mas/yr	e_ (...)	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	0.069	20 21 21.1126197928	-20 21 41.617998946	305.33796314417	-20.36156828952	21.099947	-2.060	5.431	-2.148	5.432	2.72735e-01		-2.784	3.865	-2.640	3.868	4.20338e-01		6	20	PS1	Gaia	DR9+DR12	Sloan	2M

I/353/gsc242

The Guide Star Catalog, Version 2.4.2 (GSC2.4.2) (STScI, 2020) ReadMe+ftp 2008AJ....136..735L metaI/353/gsc242 Guide Star Catalogue, Version 2.4.2 (original column names in green) (3485671481 rows)

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	0.043	20 21 21.1179350125	-20 21 41.692195039	SC5B036712	305.33799139589	-20.36158116529	2331133336712	2015.500	0	20.684055										21.667	21.145	20.539	20.282	18.5483	18.087		17.898
2	0.363	20 21 21.1709124176	-20 21 42.821618408	SC5B031079	305.33807373047	-20.36162757874	2331133331079	1977.690	0			17.168400																								2.951	0.040	157.9
3	2.035	20 21 21.0370844360	-20 21 43.405543876	SC5B132433	305.33765451848	-20.36205709552	23311333132433	2006.000	4																										21.927
4	4.036	20 21 20.9227248000	-20 21 44.688276000	SC5B116120	305.33717802000	-20.36241341000	23311333116120	2012.370	3												21.841	21.535

I/355/gaiadr3

Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022) ReadMe+ftp 2022yCat.1355....0G metaI/355/gaiadr3 Gaia data release 3 (Gaia DR3). (original column names in green) timeSerie spectrum (1811709771 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	DE_ICRS deg	Source	e_RA_ICRS mas	e_DE_ICRS mas	Plx mas	e_ mas	PM mas/yr	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	RUWE	FG e-/s	e_ e-/s	Gmag mag	FBP e-/s	e_ e-/s	BPmag mag	FRP e-/s	e_ e-/s	RPmag mag	BP-RP mag	RV km/s	e_ km/s	Vbroad km/s	GRVSmag mag	QSO	Gal	NSS	XPcont	XPsamp	RVS	EpochPh	EpochRV	MCMCGSP	MCMCMSC	And	Teff K	logg [cm/s2]	[Fe/H] [-]	Dist pc	A0 mag	HIP	PS1	SDSS13	SKYM2	TYC2	URAT1	AllWISE	APASS9	GSC23	RAVE5	2MASS	RAVE6	RAJ2000 deg	DEJ2000 deg
1	0.046	20 21 21.1181222166	-20 21 41.699074877	305.33799217590	-20.36158307635	6860123976531511552	5.3591	1.7846									109.08761	3.6803e+00	20.592928	7.3662e+01	2.0890e+01	20.670427	6.8969e+01	1.4408e+01	20.151255	0.519173					0	0	0	0	0	0	0	0	0	0	0							83563053379916476							SC5B031079				305.33799217590	-20.36158307635

I/355/paramp

Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022) ReadMe+ftp 2022yCat.1355....0G metaI/355/paramp 1D astrophysical parameters produced by the Apsis processing chain developed in Gaia DPAC CU8 (1590932717 sources) (astrophysical_parameters) (original column names in green) (1590932717 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	Source	RA_ICRS deg	DE_ICRS deg	PQSO	PGal	Pstar	PWD	Pbin	Teff K	logg [cm/s2]	[Fe/H] [-]	Dist pc	A0 mag	AG mag	ABP mag	ARP mag	E(BP-RP) mag	GMAG mag	Rad solRad	Rad-Flame Rsun	Lum-Flame Lsun	Mass-Flame Msun	Age-Flame Gyr	z-Flame km/s
1	0.046	20 21 21.1181222166	-20 21 41.699074877	6860123976531511552	305.33799217590	-20.36158307635	0.00302769	0.00000000	0.98692220	0.01005014	0.00000000

Note:

II/312/ais

GALEX-DR5 (GR5) sources from AIS and MIS (Bianchi+ 2011) ReadMe+ftp 2011Ap&SS.335..161B metaII/312/ais Sample of the AIS (All-sky Imaging Survey) (out of 65,266,291 sources) (77864203 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	FUV mag	e_ mag	NUV mag	e_ mag	r.fov deg	b	Fafl	Nafl	Fexf	Nexf	Fr arcsec	Nr arcsec
1	2.508	20 21 21.02062	-20 21 43.8188	305.337586	-20.362172			21.968	0.350	0.352209	1	0	0	0	0		12.20

Note:

II/335/galex_ais

Revised catalog of GALEX UV sources (GUVcat_AIS GR6+7) (Bianchi+ 2017) ReadMe+ftp 2017ApJS..230...24B metaII/335/galex_ais Sample of the revised GALEX catalog of UV sources (GUVcat_AIS) from GR6+7 (82,992,086 sources) (original column names in green) (82992086 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAJ2000 deg	DEJ2000 deg	Name	r.fov deg	b	FUVmag mag	e_ mag	NUVmag mag	e_ mag	Fafl	Nafl	Fexf	Nexf	Fr deg	Nr deg
1	2.035	20 21 21.03708	-20 21 43.4055	305.337655	-20.362057	GALEX J202121.0-202143	0.351781	1			21.9273	0.3150	0	0	0	0		0.002929

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)

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	0.043	20 21 21.11793120	-20 21 41.6948400	305.337991380	-20.361581900	83563053379916476	436527232	52	0.0111	0.0028	56141.153587960	5	75	21.6672	0.0794	21.4827	0.1496	115000	21.1446	0.0712	21.2463	0.1478	115000	20.5386	0.0408	20.3720	0.0766	115000	20.2818	0.0541	20.2990	0.2904	115000	18.5483	0.0389	18.0385	0.0033	16892216
2	4.036	20 21 20.92272480	-20 21 44.6882760	305.337178020	-20.362413410	83563053371515441	436527104	52	0.0871	0.0447	56176.370497690	4	15					114720	21.8415	0.1496	22.1361	0.2873	115000	21.5345	0.0531	21.2198	0.2339	115000					114720					16416

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)

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	0.083	20 21 21.11449	-20 21 41.6075	472938474043	305.337977	-20.361558	472446406377					0.1888				0.3071	-1					0	18.1166	18.0865	18.5018	110.931	0					0	18.4587	17.8978	18.1947	111.079	0

Note:

II/363/unwise

The band-merged unWISE Catalog (Schlafly+, 2019) ReadMe+ftp 2019ApJS..240...30S metaII/363/unwise The band-merged unWISE catalog (original column names in green) (2214734224 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	objID	RAJ2000 deg	DEJ2000 deg	FW1 309.05nJy	FW2 167.66nJy	e_FW1 309.05nJy	e_FW2 167.66nJy	q_W1	q_W2	fFW1	fFW2
1	0.468	20 21 21.146763	-20 21 41.82320	3056m197o0100273	305.3381115	-20.3616176	4.4714e+01	0.0000e+00	8.4387e+00	0.0000e+00	1.00000	0.00000	0.2500	0.0000

II/365/catwise

The CatWISE2020 catalog (updated version 28-Jan-2021) (Marocco+, 2021) ReadMe+ftp 2021ApJS..253....8M metaII/365/catwise The CatWISE2020 catalog (original column names in green) (1890715640 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	e_ arcsec	DE_ICRS deg	e_ arcsec	Name	nW1	mW1	nW2	mW2	RAPMdeg deg	e_ arcsec	DEPMdeg deg	e_ arcsec	pmRA arcsec/yr	e_ (...)	pmDE arcsec/yr	e_ (...)	snrW1pm	snrW2pm	FW1pm ct	e_ ct	FW2pm ct	e_ ct	W1mproPM mag	W2mproPM mag	pmQual	Dist arcsec	snrdELON	snrdELAT	chi2pmRA	chi2pmDE	ka	k1	k2	km	Sep arcsec	abf	WISEA
1	0.278	20 21 21.113252	-20 21 41.96684	305.3379719	0.5402	-20.3616575	0.5731	J202121.11-202141.9	2	12	0	12	305.3379616	0.6888	-20.3616346	0.7018	-0.44267	0.2732	0.29648	0.2645	4.4	3.5	3.6e+01	8e+00	9.1e+01	3e+01	18.619	17.603	1N000	0.561	0.114	0.451	1.64e+00	2.21e-01	3	3	3	3		00	WISEA

II/366/catalog

ASAS-SN catalog of variable stars (Jayasinghe+, 2018-2020) ReadMe+ftp 2018MNRAS.477.3145J metaII/366/catalog ASAS-SN catalog of variable stars (from the ASAS-SN Variable Stars Database (AVSD); http://asas-sn.osu.edu/variables on 23-Oct-2020) (22-Oct-2019 version) (666502 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	ASASSN-V	RAJ2000 deg	DEJ2000 deg	Vmag mag	Amp mag	Per d	Type	Prob	HJD d	Gaia	pmRA mas/yr	pmDE mas/yr	Vt km/s	Dist pc	WISEA	J-K mag	W1-W2 mag	APASS	B-V mag	E(B-V) mag	Ref	URL	2M
1	1.57	20 21 21.0288	-20 21 42.696	J202121.03-202142.7	305.33762	-20.36186	16.04	0.69	NON PERIODIC	UG		2457684.62171											0.078	II	https://asas-sn.osu.edu/variables/612757	2M

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)

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	0.083	20 21 21.11449	-20 21 41.6075	473234156419	305.337977	-20.361558	VHS J202121.11-202141.6	0				0.1888				0.3071	-1	0.1023	0.0724	0.0462	0.0303					0	18.1166	18.0865	18.5018	110.931	0					0	18.4587	17.8978	18.1947	111.079	0

Note:

II/379/smssdr4

SkyMapper Southern Sky Survey. DR4 (Onken+, 2024) ReadMe+ftp 2024arXiv240202015O metaII/379/smssdr4 SkyMapper DR4 (original column names in green) (724329344 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	SMSS	RAICRS deg	DEICRS deg	ObjectId	e_RAICRS mas	e_DEICRS mas	EpMean d	flags	ClassStar	RadrPetro pix	uPSF mag	uPetro mag	vPSF mag	vPetro mag	gPSF mag	gPetro mag	rPSF mag	rPetro mag	iPSF mag	iPetro mag	zPSF mag	zPetro mag
1	0.023	20 21 21.11498	-20 21 41.7134	202121.11-202141.5	305.337979	-20.361587	1340399602	118	81	58519.4446	0	0.913	5.77									17.5986	17.6085	17.7644	17.9133

Note:

IV/38/tic

TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019) ReadMe+ftp 2019AJ....158..138S metaIV/38/tic Transiting Exoplanet Survey Satellite (TESS) Input Catalog - v8.0 (TIC-8) (original column names in green) (1727987580 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	TIC	RAJ2000 deg	DEJ2000 deg	TYC	UCAC4	2MASS	GAIA	S/G	Ref	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	r_pm	Teff K	s_ K	logg [cm/s2]	s_ (...)	[M/H] [Sun]	e_ (...)	Rad Rsun	s_ Rsun	Mass Msun	s_ Msun	LClass	Dist pc	s_ pc	Ncont	Rcont	e_Mass Msun	E_Mass Msun	e_Rad Rsun	E_Rad Rsun	e_logg [cm/s2]	E_logg [cm/s2]	e_Dist pc	E_Dist pc	r_Dist	e_Teff K	E_Teff K	r_Teff	e_RAJ2000 mas	e_DEJ2000 mas	RAOdeg deg	DEOdeg deg	e_RAOdeg mas	e_DEOdeg mas	Sloan
1	0.043	20 21 21.1179350124	-20 21 41.692195039	1994284221	305.33799139589	-20.36158116529				6860123976531511552	STAR	gaia2																																	13.71995081999	5.41612942990	305.33799139589	-20.36158116529	13.71995081999	5.41612942990	Sloan

Note:

IV/39/tic82

TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021) ReadMe+ftp 2021arXiv210804778P metaIV/39/tic82 Transiting Exoplanet Survey Satellite (TESS) Input Catalog - v8.2 (TIC-8.2) (original column names in green) (1727987580 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	TIC	RAJ2000 deg	DEJ2000 deg	TYC	UCAC4	2MASS	GAIA	S/G	Ref	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	r_pm	Teff K	s_ K	logg [cm/s2]	s_ (...)	[M/H] [Sun]	e_ (...)	Rad Rsun	s_ Rsun	Mass Msun	s_ Msun	LClass	Dist pc	s_ pc	Ncont	Rcont	e_Mass Msun	E_Mass Msun	e_Rad Rsun	E_Rad Rsun	e_logg [cm/s2]	E_logg [cm/s2]	e_Dist pc	E_Dist pc	r_Dist	e_Teff K	E_Teff K	r_Teff	e_RAJ2000 mas	e_DEJ2000 mas	RAOdeg deg	DEOdeg deg	e_RAOdeg mas	e_DEOdeg mas	Sloan
1	0.043	20 21 21.1179350124	-20 21 41.692195039	1994284221	305.33799139589	-20.36158116529				6860123976531511552	STAR	gaia2																																	13.719951	5.416129	305.33799139589	-20.36158116529	13.719951	5.416129	Sloan

VI/42/out

Identification of a Constellation From Position (Roman 1987) ReadMe+ftp 1987PASP...99..695R metaVI/42/out Compute constellation name from Position (357 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA1875 deg	DE1875 deg	Cst
1	0.1	20 21 21.112	-20 21 41.76	303.5217	-20.7552	Cap

B/vsx/vsx

AAVSO International Variable Star Index VSX (Watson+, 2006-) ReadMe+ftp metaB/vsx/vsx Variable Star indeX, Version 2024-04-22 (original column names in green) (2278885 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	OID	n_	Name	V	Type	l_	max mag	u_	n_	f_	l_	min mag	u_	n_	l_	Period d	u_	Sp	RAJ2000 deg	DEJ2000 deg
1	0.29	20 21 21.1200	-20 21 41.976	282731	B	MLS 120530:202121-202142	0	UG		17.000		CV			20.900		CV					305.33800	-20.36166

J/A+A/675/A195/lz-ztfr

ZTF DR11 classification in ZTF/4MOST sky (Sanchez-Saez+, 2023) ReadMe+ftp 2023A&A...675A.195S metaJ/A+A/675/A195/lz-ztfr Labeled set (LS) for ZTF r-band model (936145 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	SourceId	SperS d	SClass	SCat	Sz	ClassDR11	ObjectId	RAJ2000 deg	DEJ2000 deg	SPMC mJy	Amp mag	Per d	Hmag1 mag	Hmag2 mag	Hmag3 mag	Hmag4 mag	Hmag5 mag	Hmag6 mag	Hmag7 mag
1	0.208	20 21 21.10107	-20 21 41.7640	ASASSN-V J202121.03-202142.7	NON PERIODIC	UG	ASASSN		CV/Nova	337202300043342	305.337921	-20.361601	1.21059e+02	2.047219	0.415291	3.29802e+00	1.61712e+00	1.11316e+00	9.46756e-01	1.41555e+00	1.67579e+00	1.15716e+00

J/A+A/675/A195/mast

ZTF DR11 classification in ZTF/4MOST sky (Sanchez-Saez+, 2023) ReadMe+ftp 2023A&A...675A.195S metaJ/A+A/675/A195/mast Master catalog used to generate the LS (1907096 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	SourceId	RAJ2000 deg	DEJ2000 deg	Per d	Class	ClassALeRCE	Cat	z	ClassDR11
1	1.584	20 21 21.02787	-20 21 42.6960	ASASSN-V J202121.03-202142.7	305.337616	-20.361860	NON PERIODIC	UG	CV/Nova	ASASSN		CV/Nova

J/MNRAS/441/1186/table1

Cataclysmic variables from CRTS (Drake+, 2014) ReadMe+ftp 2014MNRAS.441.1186D metaJ/MNRAS/441/1186/table1 CRTS cataclysmic variables (855 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	X	CRTS	RAJ2000 "h:m:s"	DEJ2000 "d:m:s"	Vmax mag	l_	Vmin mag	Ndet	Det	Ref	Simbad
1	0.29	20 21 21.1300	-20 21 41.500		J202121.1-202142	20 21 21.13	-20 21 41.5	17.0		20.9	1	MLS120530:202121-202142		Simbad

J/MNRAS/456/4441/catalog

Outburst catalogue of cataclysmic variables (Coppejans+, 2016) ReadMe+ftp 2016MNRAS.456.4441C metaJ/MNRAS/456/4441/catalog Outburst catalogue (1038 rows)

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	CRTS	RAJ2000 deg	DEJ2000 deg	Class	Class2	Porb h	PSH h	Porb2 h	Vmago mag	Vmagq mag	VmagQb mag	VmagQf mag
1	0.23	20 21 21.1272	-20 21 41.544	CRTS_J202121.1-202141	305.33803	-20.36154	DN					17.0	21.1