The TYCHO Catalogue

Details The TYCHO Catalogue The TYCHO Catalogue

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...323l..57h&link_type=abstract

Astronomy and Astrophysics 323, L57-L60

Astronomy and Astrophysics

Astrophysics

79

Scientific paper

The principal observational characteristics of the Tycho Catalogue, and a summary of its main astrometric and photometric properties, are presented. Median astrometric standard errors (in position, parallax, and annual proper motion) are typically around 7mas for stars brighter than V_T_~9mag, and approximately 25mas for V_T_~10.5mag, at the catalogue epoch (J1991.25). The Tycho Catalogue was adjusted so that the six global rotation and spin components of the catalogue reference frame coincide with those of the Hipparcos Catalogue. It therefore materialises the ICRS reference system, coinciding with its principal axes at the level of +/-0.6mas, and with proper motions consistent with an inertial system at the level of +/-0.25mas/yr. The 1058332 constituent stars provide a mean sky density of ~25 stars/deg^2^. The catalogue and associated epoch photometry annex data are available in machine-readable form as part of the final Hipparcos mission products.

Affiliated with

Also associated with

No associations

Rating

The TYCHO Catalogue does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The TYCHO Catalogue, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The TYCHO Catalogue will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1184036