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Re: Algorithm for star ephemerides?
From: Yves Arrouye
Date: 2001 Apr 16, 10:34 PM
From: Yves Arrouye
Date: 2001 Apr 16, 10:34 PM
> Another dumb question: how do I get from the name of a star to its # in a catalog like the one Ed Falk mentions? And here's an answer to myself, for the record: VizieR does. See http://adc.gsfc.nasa.gov/vizier/. If you go to http://vizier.u-strasbg.fr/ and then for example enter Regulus in the Target name box, then click Find Data, you'll get numbers that match Meeus' AA 1st ed. p. 124 (from the I/146/ppm1 catalog): Full _r _RAJ2000 _DEJ2000 PPM DM Mag Sp RAJ2000 DEJ2000 pmRA pmDE e_RAs e_pmRA e_pmDE arcmin "h:m:s" "d:m:s" mag "h:m:s" "d:m:s" s/yr arcsec/yr 10mas mas/yr mas/yr ---------------------------------------------------------------------------- ---- 1 0.0014 10 08 22.32 +11 58 01.9 127140 +12 2149 1.3 B8 10 08 22.315 +11 58 01.89 -0.0169 0.006 1 0.3 0.3 (and that also seems to answer my FK5 question). Now, I have another small question: where is the name of the star in all this data? Even clicking to get detail doesn't give the name (neither Regulus nor Alpha Leonis or even just Leonis are in the page). How can I then check that I really got what I wanted? YA