Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ycat.1282....0e&link_type=abstract
VizieR On-line Data Catalog: I/282. Originally published in: 2002A&A...395..347E
Astronomy and Astrophysics
Astronomy
Positional Data, Meridian Observations, Surveys
Scientific paper
This is CMC12 (Version 1.0), an astrometric and photometric catalogue of 6.3 million stars in the red magnitude range 9 to 17.
The Carlsberg Meridian Telescope (CMT) underwent a major upgrade in March 1999. A 2k by 2k CCD camera was installed with a Sloan r' filter operating in a drift scan mode. With the new system, the magnitude limit is r'CMT=17 and the positional accuracy is about 0.035".
The main task of the CMT is to map the sky in the declination range -3° to +30° with the aim of providing an astrometric, and photometric, catalogue that can accurately transfer the Hipparcos/Tycho reference frame to Schmidt plates.
The current release (Version 1.0) comprises all the observations made between March 1999 and March 2002 with the new CCD in the declination band -3° to +3°. It is intended to release the rest of the catalogue later.
A more complete description is available in the documentation at http://www.ast.cam.ac.uk/~dwe/SRF/cmc12/cmc12_documentation.ps or http://www.ast.cam.ac.uk/~dwe/SRF/cmc12/cmc12_documentation.pdf
(2 data files).
Evans Dafydd W.
Helmer L.
Irwin Mary Jane
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