Information on resource 'ppmxl/q'
PPMXL is a catalog of positions, proper motions, 2MASS- and optical
photometry of 900 million stars and galaxies, aiming to be complete
down to about V=20 full-sky. It is the result of a re-reduction of
USNO-B1 together with 2MASS to the ICRS as represented by PPMX.
To query this data, you can use
- a web form (mainly for cone searches)
- the equivalent SCS service using your favourite VO client (e.g., topcat)
- our web-based crossmatcher to
retrieve PPMXL data (e.g., proper motions and photometry) for your
object list
- web-based ADQL or,
preferentially,
- TAP for more advanced queries.
You can retrieve also the whole data set as a
gzipped text file from http://vo.ari.uni-heidelberg.de/ppmxl
(39.4 GiB).
The columns in the text file are in database order as
documented in
the table info in DB order
with columns separated by vertical bars ("|").
David Tholen kindly provided
code
to convert this into a collection
of files for easy consumption by FORTRAN programs.
Services defined within this resource descriptor
Tables defined within this resource descriptor
[Manage RD]