Table information for 'ucac3.icrscorr'

General

Table Description: Corrections between UCAC3 and the ICRS as represented by PPMXL on a grid of degrees, obtained by substracting UCAC3 from PPMXL in cones of radius sqrt(2)/2 degrees around the given center position.

This table is available for ADQL queries and through the TAP endpoint.

Resource Description: The Third US Naval Observatory CCD Astrograph catalogue (UCAC3) is an all-sky catalgoue containing just over 100 million objects covering about R = 8-16 mag. This table contains the original data content of UCAC3 but leaves out the data objetained by crossmatching to other catalogs.

For a list of all services and tables belonging to this table's resource, see Information on resource 'UCAC3 nocross'

Citing this table

This table has an associated publication. If you use data from it, it may be appropriate to reference 2010AJ....139.2184Z (ADS BibTeX entry for the publication) either in addition to or instead of the service reference.

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:ucac3_icrscorr,
  year=2009,
  title={{UCAC3} nocross},
  author={{GAVO} Data Centre},
  url={http://dc.zah.uni-heidelberg.de/tableinfo/ucac3.icrscorr},
  howpublished={{VO} resource provided by the {GAVO} Data Center}
}

Columns

Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
nob N Number of objects the correction is based on N/A meta.number
alpha Center RA Center for field, RA deg pos.eq.ra;meta.main
delta Center Dec Center for field, Dec deg pos.eq.dec;meta.main
d_alpha PPMXL-UCAC3, RA Correction PPMXL-UCAC3 in alpha (Epoch 2000.0) deg pos.eq.ra;arith.diff
d_delta PPMXL-UCAC3, Dec Correction PPMXL-UCAC3 in delta (Epoch 2000.0) deg pos.eq.dec;arith.diff
d_pmalpha PPMXL-UCAC3, PM RA Correction PPMXL-UCAC3 in proper motion alpha*cos(delta) deg/yr pos.pm;pos.eq.ra;arith.diff
d_pmdelta PPMXL-UCAC3, PM Dec Correction PPMXL-UCAC3 in delta deg/yr pos.pm;pos.eq.dec;arith.diff

Columns that are parts of indices are marked like this.

Other

The following services may use the data contained in this table:

VOResource

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