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Hipparcos Visual Results |
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3d Stereo Images:
[November 1999]
Three-dimensional stereo images have been constructed for some selected
regions of the sky. The images are created using data from the
Hipparcos Catalogue; relative distances are calculated from the
Hipparcos parallax values, and the star colours are derived from the V
magnitude and B-V colour indices from the Catalogue. The images can be
viewed on-screen or printed and viewed on paper. Further details and
the 3d images are available here.
Stereo Images:
Prior to the Hipparcos mission, numerous celestial mapping programmes have
been carried out, all of these concentrating on the two-dimensional coordinates
of the stars. Now, for the first time, the extremely accurate positions,
motions and stellar distances obtained from the Hipparcos data have yielded
an accurate reflection of the true stellar 3-dimensional distribution in
space. ESA Bulletin 77 featured an article with stereo
images illustrating these results using preliminary data from the mission.
Selected Statistics:
The statistical properties of the Hipparcos and Tycho Catalogues are
given in Part 3 of Volume 1 of the 17-volume printed catalogue
(Introduction and Guide to the Data). (Note that this Volume is also
available online.) They are also available in pdf format on ASCII
CD-ROM number 6 (contained in Volume 17). A selection of these statistics are given here,
including astrometric accuracies for the various parameters on the
celestial sphere, as well as different Hertzsprung-Russell diagrams
derived from the data.
Hipparcos Photographs:
Several photographs of the Hipparcos satellite
in testing facilities and at launch are available.
The Hyades Movie:
An mpeg movie, illustrating the 3-d structure of
the Hyades cluster, has been created by Dr Anthony Brown of the
Sterrewacht, Leiden, in connection with a paper on the Hyades cluster accepted
for publication in Astronomy and Astrophysics (by M.A.C. Perryman and
collaborators), 17 July 1997. This is the first time that the three-dimensional
spatial structure of a cluster has been determined reliably.
The Hipparcos Poster: Hipparcos
pinpoints the stars
A popular exposition of some of the goals of Hipparcos, based on the
poster: Hipparcos pinpoints the stars is reproduced here. Copies of the
original 90 x 60 cm poster (with text in English and French) can be
obtained on request from: The Public Relations Office, ESTEC, Noordwijk
2200AG, The Netherlands.
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Contact Us Updated on: August 29, 2000 |
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