The new new Hipparcos catalogue

[ajtribick]

CDS appear to have updated the datafiles for the new revision of the Hipparcos catalogue (I/311) - not sure why, but one thing I have noticed is that it has fixed the solar neighbourhood within 10 light years of Sol. A new version of stars.dat and stars.txt are available from the Subversion repository.

[chris]

CDS appear to have updated the datafiles for the new revision of the Hipparcos catalogue (I/311) - not sure why, but one thing I have noticed is that it has fixed the solar neighbourhood within 10 light years of Sol. A new version of stars.dat and stars.txt are available from the Subversion repository.

Just out of curiosity, what do you mean by "fixed"?

--Chris

[ajtribick]

There were various stars in that region that perhaps shouldn't be.

Most sources say there are only the following stars within 10 ly of Sol

Sol
Proxima Centauri
Alpha Centauri A+B
Barnard's Star
Wolf 359
Lalande 21185
Sirius A+B
Luyten 726-8 A+B (BL+UV Ceti)
Ross 154

What HIP 14559 (to take one example) was doing at a distance of 6-and-a-bit light years, I don't know...

[ajtribick]

Also it now looks like we've got a few more stars...

Revision 2800: 112519 stars (the last revision before I started working on the star databases)
Revision 4409: 109916 stars (based on the previous version of I/311)
Revision 4462: 113179 stars (this version)

[symaski62]

Also it now looks like we've got a few more stars...

Revision 2800: 112519 stars (the last revision before I started working on the star databases)
Revision 4409: 109916 stars (based on the previous version of I/311)
Revision 4462: 113179 stars (this version)

ah bon !