VizieR

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The 3 columns in color are computed by VizieR, and are not part of the original data (note that the computed coordinates are computed from the positions and the proper motions given in the table)

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	0.691	18 03 51.7751142920	+42 56 42.608030842	N1Z5049985	270.96572964288	+42.94516889746	1022000149985	2005.442	3										23.675	23.268	23.075	23.839	23.095
2	6.953	18 03 51.7700896270	+42 56 35.813288919	N1Z5049986	270.96570870678	+42.94328146914	1022000149986	2005.442	3										23.950	23.231	23.292	22.687	23.052

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)

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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	6.416	18 03 51.981103	+42 56 36.50914	2710p424o0094902	270.9665879	+42.9434748	3.2566e+01	0.0000e+00	4.5308e+00	0.0000e+00	1.00000	0.00000	0.4761	0.0000
2	6.733	18 03 51.463939	+42 56 37.38519	2710p424o0032588	270.9644331	+42.9437181	4.7364e+01	1.7599e+02	4.5893e+00	1.7797e+01	1.00000	1.00000	0.6080	0.9256

II/365/catwise

The CatWISE2020 catalog (updated version 28-Jan-2021) (Marocco+, 2021)

ReadMe+ftp

2021ApJS..253....8M

The CatWISE2020 catalog (original column names in green) (1890715640 rows)

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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	5.731	18 03 51.935977	+42 56 37.10010	270.9663999	0.3662	+42.9436389	0.4060	J180351.93+425637.1	4	12	1	12	270.9663823	0.3806	42.9437045	0.4207	-0.07677	0.1334	0.17891	0.1488	8.8	5.2	3.9e+01	4e+00	7.5e+01	1e+01	18.524	17.815	1N000	0.920	0.462	1.061	7.28e-01	2.16e+00	3	3	3	3		00	WISEA
2	7.710	18 03 51.343417	+42 56 37.24446	270.9639309	0.2100	+42.9436790	0.2280	J180351.34+425637.2	10	12	6	12	270.9639024	0.2058	42.9437118	0.2232	0.04241	0.0802	-0.03084	0.0885	13.7	11.2	6.0e+01	4e+00	1.7e+02	1e+01	18.058	16.945	3N000	1.229	1.954	2.087	3.59e+00	4.25e+00	3	3	3	3	1.641	00	WISEA

Note: SDSS is also available from http://www.sdss3.org/dr9/

V/139/sdss9 The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)
ReadMe+ftp
2012ApJS..203...21A
metaV/139/sdss9

Data Release 9 (469,053,874 primary sources plus 324,960,076 secondary sources); 2,674,200 spectroscopic targets. Data Release 9 is the first release of the spectra from the SDSS-III's Baryon Oscillation Spectroscopic Survey (BOSS). The photometric part contains the same sources as the Data Release 8, with a corrected astrometry. (794013950 rows) (Note)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	objID	RA_ICRS deg	DE_ICRS deg	mode	q_	cl	SDSS9	m_	Im	ObsDate yr	Q	umag mag	e_ mag	gmag mag	e_ mag	rmag mag	e_ mag	imag mag	e_ mag	zmag mag	e_ mag	zsp
1	0.692	18 03 51.77496	+42 56 42.6084	1237668727165748878	270.965729	+42.945169	1		3	J180351.77+425642.6		Im	2005.4436	3	23.681	0.531	23.261	0.168	23.068	0.216	23.837	0.512	23.099	0.584
2	6.955	18 03 51.76992	+42 56 35.8116	1237668727165748882	270.965708	+42.943281	1		3	J180351.77+425635.8		Im	2005.4436	3	23.958	0.607	23.222	0.165	23.285	0.260	22.684	0.245	23.055	0.600

Note:

V/147/sdss12 The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
ReadMe+ftp
2015ApJS..219...12A
metaV/147/sdss12

Data Release 12 (469,053,874 primary sources plus 324,960,094 secondary sources); 3,538,079 spectroscopic targets (original column names in green) (794013968 rows) (Note)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA_ICRS deg	DE_ICRS deg	mode	q_	class	SDSS12	m_	objID	ObsDate yr	Q	umag mag	e_ mag	gmag mag	e_ mag	rmag mag	e_ mag	imag mag	e_ mag	zmag mag	e_ mag	zsp	zph	e_	<zph>
1	0.691	18 03 51.77513	+42 56 42.6079	270.965730	+42.945169	1		3	J180351.77+425642.6		1237668727165748878	2005.4437	3	23.681	0.531	23.261	0.168	23.068	0.216	23.837	0.512	23.099	0.584		0.8171	0.1581	0.4046
2	6.953	18 03 51.77010	+42 56 35.8135	270.965709	+42.943282	1		3	J180351.77+425635.8		1237668727165748882	2005.4437	3	23.958	0.607	23.222	0.165	23.285	0.260	22.684	0.245	23.055	0.600		0.4160	0.1615	0.3364

Note:

V/154/sdss16 Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)
ReadMe+ftp
2020ApJS..249....3A
metaV/154/sdss16

Data Release 16 (469,050,976 primary sources plus 325,277,739 secondary sources) (original column names in green) (1231051050 rows) (Note)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	objID	RA_ICRS deg	DE_ICRS deg	mode	class	clean	e_RA_ICRS (...)	e_DE_ICRS (...)	umag mag	gmag mag	rmag mag	imag mag	zmag mag	e_umag mag	e_gmag mag	e_rmag mag	e_imag mag	e_zmag mag	zsp	e_	f_	zph	e_	<zph>	Q	SDSS16	Sp-ID	MJD d
1	0.691	18 03 51.77511	+42 56 42.6080	1237668727165748878	270.965730	+42.945169	1	3	0	0.137	0.141	23.675	23.268	23.075	23.839	23.095	0.533	0.168	0.216	0.510	0.577				0.8171	0.1581	0.4046	3	SDSS J180351.77+425642.6		53532.2985
2	6.953	18 03 51.77009	+42 56 35.8133	1237668727165748882	270.965709	+42.943281	1	3	0	0.158	0.209	23.950	23.231	23.292	22.687	23.052	0.612	0.164	0.259	0.244	0.592				0.4160	0.1615	0.3364	3	SDSS J180351.77+425635.8		53532.2985

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	0.2	18 03 51.884	+42 56 42.57	270.0128	+42.9392	Her

Note:

VII/292/north DESI Legacy Imaging Surveys DR8 photometric redshifts (Duncan, 2022)
ReadMe+ftp
2022MNRAS.512.3662D
metaVII/292/north

Legacy Surveys DR8 North Photometric Redshifts catalog (323 213 867 sources) (323213867 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	id	RAJ2000 deg	DEJ2000 deg	release	brickid	objid	type	pstar	gmmcomp	zphot	e_	fclean	fqual
1	0.524	18 03 51.78946612607	+42 56 42.6874750440	8001556788001294	270.965789442192	+42.945190965290	8001	556788	1294	PSF	0.004	P9	1.543	0.717	1	0
2	7.236	18 03 51.77216627784	+42 56 35.5265691072	8001556788001250	270.965717359491	+42.943201824752	8001	556788	1250	PSF	0.013	P9	1.816	0.574	1	0

B/vsx/vsx

AAVSO International Variable Star Index VSX (Watson+, 2006-)

ReadMe+ftp

2006SASS...25...47W

Variable Star indeX, Version 2026-08-09 (original column names in green) (10304640 rows)

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	OID	Name	V	RAJ2000 deg	DEJ2000 deg	Type	l_	max mag	u_	n_	f_	l_	min mag	u_	n_	l_	Period d	u_	Sp
1	0.08	18 03 51.8335	+42 56 42.795	8278010	SN 2025yd	0	270.96597	42.94522	SN Ia		17.300		g		<	23.800		g

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