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.

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USNO-A2.0

RAJ2000
deg

DEJ2000
deg

ACTflag

Mflag

Bmag
mag

Rmag
mag

Epoch
yr

1 3.191 20 03 44.78544 -27 59 17.8224 0600-42098683 300.936606 -27.988284 13.6 13.4 1982.539

2 15.567 20 03 44.32680 -27 59 31.4412 0600-42098484 300.934695 -27.992067 20.6 17.4 1982.539

3 18.701 20 03 46.42608 -27 59 19.1004 0600-42099423 300.943442 -27.988639 20.3 17.9 1982.539

4 20.853 20 03 44.56008 -27 58 58.8504 0600-42098594 300.935667 -27.983014 20.6 18.0 1982.539

5 23.862 20 03 43.47600 -27 59 31.2324 0600-42098076 300.931150 -27.992009 18.7 17.8 1982.539

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GSC

RAJ2000
deg

DEJ2000
deg

PosErr
arcsec

Pmag
mag

e_
mag

n_

Class

Plate

Epoch
yr

1 3.16 20 03 44.7864 -27 59 17.880 0690001356 300.93661 -27.98830 0.3 13.88 0.40 0 3 01D4 1976.412

%0a%22>ts_init('!ext/gsc1.2.exe_2');">\Endscript

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	3.191	20 03 44.78544	-27 59 17.8224	0600-42098683	300.936606	-27.988284			13.6	13.4	1982.539
2	15.567	20 03 44.32680	-27 59 31.4412	0600-42098484	300.934695	-27.992067			20.6	17.4	1982.539
3	18.701	20 03 46.42608	-27 59 19.1004	0600-42099423	300.943442	-27.988639			20.3	17.9	1982.539
4	20.853	20 03 44.56008	-27 58 58.8504	0600-42098594	300.935667	-27.983014			20.6	18.0	1982.539
5	23.862	20 03 43.47600	-27 59 31.2324	0600-42098076	300.931150	-27.992009			18.7	17.8	1982.539

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Plate	Epoch yr
1	3.16	20 03 44.7864	-27 59 17.880	0690001356	300.93661	-27.98830	0.3	13.88	0.40	0	3	01D4	1976.412

Note: The GSC-ACT (or GSC1.3) is a recalibration of the GSC1.1, the catalogue constructed to support the operational need of the Hubble Space Telescope, with the ACT, the combination of the Astrographic Catalogue and the Tycho catalogue derived from the Hipparcos mission; see http://www.projectpluto.com/gsc_act.htm for more details about this recalibration.

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GSC

RAJ2000
deg

DEJ2000
deg

PosErr
arcsec

Pmag
mag

e_
mag

n_

Class

Epoch
yr

1 3.24 20 03 44.7792 -27 59 17.916 0690001356 300.93658 -27.98831 0.3 13.90 0.42 0 3 1976.412

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20construction%20of%20the%20%0a%3cB%3eGSC-II%20%0ais%20still%20in%20progress:%20this%0aversion%20has%20no%20proper%20motions,%20and%20the%20magnitude%20limits%20are%2018.5%20in%20F%20%28red%29%0aand%2019.5%20in%20J%20%28blue%29.%20The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%20%0athe%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a
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GSC2.2

RA(ICRS)
deg

DE(ICRS)
deg

Epoch
yr

Rmag
mag

e_
mag

Bjmag
mag

e_
mag

Class

a
pix

e

1 3.197 20 03 44.78256 -27 59 17.9268 S3330030142 300.936594 -27.988313 1991.542 13.92 0.41 13.85 0.42 3 6.49 0.14

2 24.045 20 03 43.47144 -27 59 31.4844 S333003016619 300.931131 -27.992079 1991.542 18.11 0.42 19.16 0.42 0 2.98 0.17

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20%3cB%3eUSNO-B%20Catalog%20presents%20positions,%20proper%20motions,%20%0amagnitudes%20un%20blue,%20red%20and%20infrared,%20as%20well%20as%20star/galaxy%20estimators%0afor%201,045,175,762%20objects%20derived%20from%203,648,832,040%20separate%20observations.%0aThe%20data%20were%20taken%20from%20scans%20of%207,435%20Schmidt%20plates%0ataken%20from%20various%20sky%20surveys%20during%20the%20last%2050%20years.%3cBR%3e%0aUSNO-B1.0%20catalog%20was%20created%20by%20Dave%20Monet%20and%20collaborators%0aat%20http://www.nofs.navy.mil/data/fchpix/%20%3cBR%3e%0a%3cB%3e%3cFONT%20COLOR=%27#EE0000%27>%20Note%20that%20the%20star/galaxy%20estimators%20may%20be%20mixed%20up%0a%20in%20dense%20regions.%0a%3cP%3e%0a
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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC	RAJ2000 deg	DEJ2000 deg	PosErr arcsec	Pmag mag	e_ mag	n_	Class	Epoch yr
1	3.24	20 03 44.7792	-27 59 17.916	0690001356	300.93658	-27.98831	0.3	13.90	0.42	0	3	1976.412

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	3.197	20 03 44.78256	-27 59 17.9268	S3330030142	300.936594	-27.988313	1991.542	13.92	0.41	13.85	0.42	3	6.49	0.14
2	24.045	20 03 43.47144	-27 59 31.4844	S333003016619	300.931131	-27.992079	1991.542	18.11	0.42	19.16	0.42	0	2.98	0.17

"> _r
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USNO-B1.0

Epoch
yr

Ndet

Imag
mag

1 2.08720 03 44.88072-27 59 17.71080620-1111030300.937003-27.9882539991491975.6 0 02 16.44 13.17 2 3.24020 03 44.79216-27 59 17.46240620-1111029300.936634-27.9881842711001968.8 4 10415.8813.7714.9313.70 311.42120 03 44.65872-27 59 29.22000620-1111027300.936078-27.9914509999991974.2 0 03 19.2421.4919.37 419.31120 03 46.47144-27 59 18.14280620-1111045300.943631-27.9883736096251964.6 0 02 19.2420.23 521.57020 03 44.54280-27 58 58.17000620-1111026300.935595-27.9828251682261979.3 -12 304 18.5921.4719.2118.48 623.72720 03 43.47816-27 59 31.02000620-1111015300.931159-27.9919501321061974.4 0 0519.3918.0219.4718.1517.92 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20The%20Naval%20Observatory%20Merged%20Astrometric%20Dataset%20%28NOMAD%29%20contains%0aastrometric%20and%20photometric%20data%20for%20over%201%20billion%20stars%20derived%20from%0athe%20Hipparcos%20%28I/239%29,%20Tycho-2%20%28I/259%29,%20UCAC2%20%28I/289%29,%20and%20USNO-B1.0%0a%28I/284%29%20catalogs%20for%20astrometry%20and%20optical%20photometry,%20supplemented%0aby%202MASS%20%28II/246%29%20near-infrared%20photometry.%3cBR%3e%0a%3cFONT%20SIZE=%27-1%27%3eAn%20efficient%20remote%20query%20program%20%3cB%3efindnomad1%20is%0aavailable%20in%20the%20cdsclient%20%0apackage,%20for%20Unix/Linux%20platforms%0a%3cP%3e%0a

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	2.088	20 03 44.880672	-27 59 17.71008	0620-1191985	..	300.9370028	-27.9882528	B	0.0	0.0	0.0	0.0					16.440	e
2	3.243	20 03 44.791992	-27 59 17.45988	0620-1191984	YM	300.9366333	-27.9881833	B	4.0	7.0	10.0	2.0	16.540	Y	16.070	Y	13.700	B	14.701	14.006	13.726
3	3.291	20 03 45.146664	-27 59 16.02996	0620-1191987	YM	300.9381111	-27.9877861	Y	3.1	9.0	-19.3	9.0	18.380	Y					16.250	15.564	14.182
4	11.421	20 03 44.658672	-27 59 29.22000	0620-1191982	..	300.9360778	-27.9914500	B	0.0	0.0	0.0	0.0	21.490	B			19.370	B
5	19.310	20 03 46.471344	-27 59 18.13992	0620-1192002	..	300.9436306	-27.9883722	B	0.0	0.0	0.0	0.0	20.230	B			19.240	e
6	21.571	20 03 44.542656	-27 58 58.17000	0620-1191981	..	300.9355944	-27.9828250	B	-12.0	6.0	30.0	8.0	21.470	B			19.210	B
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6	21.571	20 03 44.542656	-27 58 58.17000	0620-1191981	..	300.9355944	-27.9828250	B	-12.0	6.0	30.0	8.0	21.470	B			19.210	B

%22>\Ahref='VizieR-5?-ref=VIZ663e648360bf6&-out.add=.&-source=I/297/out&NOMAD1===0620-1191969' class='full'723.72920 03 43.477992-27 59 31.020000620-1191969..300.9311583-27.9919500B 0.0 0.0 0.0 0.019.470B 18.150B %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20Zone%20-30/%2b50deg%3cP%3e%0a

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	3.297	20 03 44.77272	-27 59 18.0276	200344.7-275918		300.936553	-27.988341	16.060	2	14.702	14.006	13.726

%0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20This%20version%20of%20the%20%0a%3cB%3eGSC-II%0ahas%20no%20proper%20motions,%20but%20the%20limits%20on%20brightness%20which%20existed%20on%0a%20%28F<18.5,%20B_j<19.5%29%20were%20removed.%0a%25The%20data%20are%20%3cB%3e%3cFONT%20COLOR=%27#0000CD%27>copyrighted,%20check%0a%25the%20%3cB%3edata%20use%20Policy.%0a%3cP%3e%0a

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	3.196	20 03 44.78280	-27 59 17.9196	SCGC000142	300.936595	-27.988311	1991.542	13.92	13.85		13.67	3	6.49	0.14
2	15.681	20 03 44.33880	-27 59 31.6932	SCGC016609	300.934745	-27.992137	1991.542	19.53	21.93			3	2.30	0.20
3	18.305	20 03 46.39632	-27 59 19.0176	SCGC016713	300.943318	-27.988616	1991.542	19.75	20.86			3	1.94	0.12
4	21.071	20 03 44.54544	-27 58 58.6812	SCGC016907	300.935606	-27.982967	1991.542	19.26	21.64		18.54	3	2.44	0.11
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%3cEM%3e4&%3cFONT%20COLOR=%27#CD5B45%27>21.071&%3cFONT%20COLOR=%27#CD5B45%27>20%2003%2044.54544&%3cFONT%20COLOR=%27#CD5B45%27>-27%2058%2058.6812&SCGC016907&300.935606&-27.982967&1991.542&19.26&21.64&%20&18.54&3&%20%202.44&%200.11%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663e648360bf6&-out.add=.&-source=I/305/out&GSC2.3===SCGC016619&-out.orig=o' class='full'524.04320 03 43.47144-27 59 31.4808SCGC016619300.931131-27.9920781991.54218.1119.16 17.840 2.98 0.17 %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	3.211	20 03 44.78136	-27 59 17.9304	300.936589	-27.988314	6.3	-0.1	14.702	13.726	15.88	14.93	13.77	13.70		5	0
2	3.249	20 03 44.77824	-27 59 17.9376	300.936576	-27.988316	-25.8	-3.7	14.702	13.726			16.44		13.17	3	0
3	16.445	20 03 44.21952	-27 59 31.4484	300.934248	-27.992069	-111.1	-136.2				21.49	19.24	19.37		3	1
4	17.960	20 03 46.36992	-27 59 19.2624	300.943208	-27.988684	-22.7	-36.4				20.23	19.24			2	0
5	21.290	20 03 44.53872	-27 58 58.4796	300.935578	-27.982911	-5.5	23.8				21.47	18.59	19.21	18.48	4	0
6	23.917	20 03 43.47960	-27 59 31.4160	300.931165	-27.992060	11.7	-10.6			19.39	19.47	18.02	18.15	17.92	5	0

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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