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

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ACTflag

Mflag

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mag

Epoch
yr

1 0.298 00 06 10.82016 -18 21 19.6128 0675-00041161 001.545084 -18.355448 14.8 16.5 1981.313

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Class

Plate

Epoch
yr

1 0.67 00 06 10.8456 -18 21 19.764 0584100984 001.54519 -18.35549 0.4 15.29 0.37 0 3 04NZ 1977.842

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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	0.298	00 06 10.82016	-18 21 19.6128	0675-00041161	001.545084	-18.355448			14.8	16.5	1981.313

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	0.67	00 06 10.8456	-18 21 19.764	0584100984	001.54519	-18.35549	0.4	15.29	0.37	0	3	04NZ	1977.842

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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%200.66&%3cFONT%20COLOR=%27#CD5B45%27>00%2006%2010.8456&%3cFONT%20COLOR=%27#CD5B45%27>-18%2021%2019.692&0584100984&001.54519&-18.35547&%200.4&15.34&%200.37&%200&3&1977.842%3cBR%3e%0a %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

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	0.722	00 06 10.82832	-18 21 19.0332	S00010331	001.545118	-18.355287	1997.658	16.95	0.43	14.97	0.37	3	4.73	0.28

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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	1.007	00 06 10.81752	-18 21 18.6516	0716-0001202	001.545073	-18.355181	547	848	1980.4	36	78	4	19.73		14.89	16.38	17.03
2	2.632	00 06 10.95600	-18 21 21.0204	0716-0001203	001.545650	-18.355839	264	47	1966.0	36	-26	3	17.10	16.41			18.19
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%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%202.632&%3cFONT%20COLOR=%27#CD5B45%27>00%2006%2010.95600&%3cFONT%20COLOR=%27#CD5B45%27>-18%2021%2021.0204&0716-0001203&001.545650&-18.355839&264&%2047&1966.0&%20%20%20%2036&%20%20%20-26&3&17.10&16.41&%20&%20&18.19%3cBR%3e">\Ahref='VizieR-5?-ref=VIZ663b8a4637bde1&-out.add=.&-source=I/284/out&USNO-B1.0===0716-0001204&-out.orig=o' class='full'3 2.77500 06 10.97616-18 21 18.46080716-0001204001.545734-18.3551289999991981.3 146 56319.91 18.8816.89 %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	1.008	00 06 10.817328	-18 21 18.65016	0716-0001207	Y.	001.5450722	-18.3551806	B	36.0	20.0	78.0	31.0	17.280	Y			16.380	B
2	2.632	00 06 10.956000	-18 21 21.02004	0716-0001208	..	001.5456500	-18.3558389	B	36.0	6.0	-26.0	1.0	17.100	o			16.410	e
3	2.773	00 06 10.975992	-18 21 18.46008	0716-0001209	..	001.5457333	-18.3551278	B	146.0	44.0	56.0	37.0	19.910	o			18.880	B

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	GSC2.3 [**ClosingBrace(s)Inserted**]
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GSC2.3

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Class

a
pix

1 0.72500 06 10.82832-18 21 19.0296S027000001001.545118-18.3552861997.65816.9514.97 17.083 4.73 0.28 %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	1.099	00 06 10.81440	-18 21 18.5472	001.545060	-18.355152	42.5	67.5			19.73	14.89		16.38	17.03	4	0
2	2.546	00 06 10.93920	-18 21 18.0396	001.545580	-18.355011	139.6	57.3			19.91			18.88	16.89	3	1
3	2.749	00 06 10.96128	-18 21 21.1212	001.545672	-18.355867	42.9	-35.0			17.10		16.41		18.19	3	0

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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 [**ClosingBrace(s)Inserted**]
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magRF

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e_
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1 1.09900 06 10.81438-18 21 18.5468001.545060-18.355152 0.115 0.11514.974 0.30016.949 0.30016.454 0.40017.871 0.5001980.47001980.4700 42.5 6.3 67.5 6.3 2 2.54600 06 10.93918-18 21 18.0400001.545580-18.355011 0.133 0.13319.910 0.40018.880 0.40019.095 0.40018.246 0.5001981.35001981.3500 139.6 6.3 57.3 6.3 3 2.74900 06 10.96127-18 21 21.1209001.545672-18.355867 0.133 0.13317.100 0.40016.410 0.40016.569 0.40015.965 0.5001966.03001966.0300 42.9 6.5 -35.0 6.5 %0a%0a%3cP%3e%0a%3cFONT%20SIZE=%27-1%27%3e%3cEM%3e%3cFONT%20COLOR=%27#0000FF%27>%3cB%3eNote:%20%3cP%3e%0a

Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RAICRS deg	e_ mas	DEICRS deg	e_ mas	ID	Type	pmRA mas/yr	e_ (...)	pmDE mas/yr	e_ (...)	Nobs	Dt yr	Rmag mag	Bmag mag	Nmag mag	Vmag mag	Jmag mag	Hmag mag	Kmag mag
1	0.492	00 06 10.828199	-18 21 19.35684	001.5451175	69.00	-18.3553769	75.00	32847+0000001	4	5.4	2.1	1.1	2.3	5	45.969	16.949	14.974	17.078

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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