Hipparcos-2 best neighbour (gaiadr2.hipparcos2_best_neighbour)

The table has 83034 rows, 5 columns.


Hipparcos-2 BestNeighbour table lists each matched external catalogue object with its best neighbour in Gaia.


If you have used Gaia data in your research, please use the following acknowledgement:

This work has made use of data from the European Space Agency (ESA) mission Gaia (http://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

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Name Type UCD Unit Description
source_id long meta.id

Unique Gaia source identifier

original_ext_source_id long meta.id.cross

Original External Catalogue source identifier

angular_distance double pos.angDistance Angle[arcsec]

Angular Distance between the two sources

number_of_neighbours int meta.number

Number of neighbours in Gaia Catalogue

gaia_astrometric_params short meta.code.status

Number of Gaia astrometric params used