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

Bmag
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mag

Epoch
yr

1 2.954 01 16 45.50544 -28 33 40.1832 0600-00492633 019.189606 -28.561162 11.9 12.1 1982.223

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Plate

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yr

1 3.19 01 16 45.4896 -28 33 40.068 0642700234 019.18954 -28.56113 0.4 12.80 0.37 0 0 00DA 1977.629

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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	2.954	01 16 45.50544	-28 33 40.1832	0600-00492633	019.189606	-28.561162			11.9	12.1	1982.223

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	3.19	01 16 45.4896	-28 33 40.068	0642700234	019.18954	-28.56113	0.4	12.80	0.37	0	0	00DA	1977.629

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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%203.21&%3cFONT%20COLOR=%27#CD5B45%27>01%2016%2045.4944&%3cFONT%20COLOR=%27#CD5B45%27>-28%2033%2039.816&0642700234&019.18956&-28.56106&%200.4&12.82&%200.37&%200&0&1977.629%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	3.409	01 16 45.49440	-28 33 39.3696	S001131349	019.189560	-28.560936	1994.608	12.99	0.42	12.78	0.26	0	8.00	0.03

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Full	_r arcsec	_RAJ2000 "h:m:s"	_DEJ2000 "d:m:s"	RA(ICRS) deg	DE(ICRS) deg	pmRA mas/yr	pmDE mas/yr	Vmag mag	B-V mag	F1	F2	F3
1	3.257	01 16 45.51573	-28 33 39.1160	019.189650	-28.560889	-0.4	9.6	15.75	0.32			S

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%3cBR%3e%0a%3cEM%3e1&%3cFONT%20COLOR=%27#CD5B45%27>%203.063&%3cFONT%20COLOR=%27#CD5B45%27>01%2016%2045.51552&%3cFONT%20COLOR=%27#CD5B45%27>-28%2033%2039.5820&0614-0013288&019.189648&-28.560995&132&138&1972.9&%20%20%20%20%200&%20%20%20%20%200&5&16.21&13.99&13.67&15.49&12.35%3cBR%3e%0a%3cEM%3e2&%3cFONT%20COLOR=%27#CD5B45%27>%207.045&%3cFONT%20COLOR=%27#CD5B45%27>01%2016%2045.82872&%3cFONT%20COLOR=%27#CD5B45%27>-28%2033%2034.1424&0614-0013291&019.190953&-28.559484&999&999&1976.0&%20%20%20%20%200&%20%20%20%20%200&3&%20&20.15&20.42&20.18&%20%3cBR%3e%0a %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	3.066	01 16 45.515328	-28 33 39.57984	0614-0013408	YM	019.1896472	-28.5609944	B	0.0	0.0	0.0	0.0	15.420	Y	14.580	Y	15.490	B	14.095	13.356	12.888
2	7.047	01 16 45.828672	-28 33 34.13988	0614-0013411	..	019.1909528	-28.5594833	B	0.0	0.0	0.0	0.0	20.420	B			20.180	B

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1 3.43801 16 45.49992-28 33 39.1932011645.5-283339 019.189583-28.56088714.876 114.09513.35712.889 %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	3.410	01 16 45.49464	-28 33 39.3624	S0AF000049	019.189561	-28.560934	1994.608	12.99	12.78		12.92	0	8.00	0.03

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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