The Hipparcos, Tycho, TRC, and ACT catalogues --- A whole sky comparison of the proper motions

Details The Hipparcos, Tycho, TRC, and ACT catalogues --- A whole sky comparison of the proper motions The Hipparcos, Tycho, TRC, and ACT catalogues --- A whole sky comparison of the proper motions

Aug 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...360..391h&link_type=abstract

Astronomy and Astrophysics, Vol. 360, p.391-398

Astronomy and Astrophysics

Astrophysics

5

Catalogs, Astrometry, Reference Systems

Scientific paper

We present a whole sky comparison of the proper motions contained in the Hipparcos Catalogue, the Tycho Catalogue, the Tycho Reference Catalogue (TRC), and the Astrographic Catalogue plus Tycho Reference Catalogue (ACT). The catalogues are compared in the 20 declination zones defined by the original Carte du Ciel project. We find that (1) the proper-motion errors in the ACT Catalogue are underestimated in all zones, sometimes by as much as 30%. (2) There are systematic differences, as large as 1.2 mas yr-1, between the proper motions in the TRC and ACT depending on the zone. We confirm the known underestimation of the proper-motion error (by as much as 40%) of the faint stars (BT > 10 mag) in the Tycho Catalogue.

Affiliated with

Also associated with

No associations

Rating

The Hipparcos, Tycho, TRC, and ACT catalogues --- A whole sky comparison of the proper motions 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 Hipparcos, Tycho, TRC, and ACT catalogues --- A whole sky comparison of the proper motions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Hipparcos, Tycho, TRC, and ACT catalogues --- A whole sky comparison of the proper motions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-734213