diff --git a/README.md b/README.md index 76dfd82..e6c8ed8 100644 --- a/README.md +++ b/README.md @@ -29,7 +29,7 @@ Fields in the database: 6. bf: The Bayer / Flamsteed designation, primarily from the Fifth Edition of the Yale Bright Star Catalog. This is a combination of the two designations. The Flamsteed number, if present, is given first; then a three-letter abbreviation for the Bayer Greek letter; the Bayer superscript number, if present; and finally, the three-letter constellation abbreviation. Thus Alpha Andromedae has the field value "21Alp And", and Kappa1 Sculptoris (no Flamsteed number) has "Kap1Scl". 7. ra, dec: The star's right ascension and declination, for epoch and equinox 2000.0. 8. proper: A common name for the star, such as "Barnard's Star" or "Sirius". I have taken these names primarily from the Hipparcos project's web site, which lists representative names for the 150 brightest stars and many of the 150 closest stars. I have added a few names to this list. Most of the additions are designations from catalogs mostly now forgotten (e.g., Lalande, Groombridge, and Gould ["G."]) except for certain nearby stars which are still best known by these designations. -9. dist: The star's distance in parsecs, the most common unit in astrometry. To convert parsecs to light years, multiply by 3.262. A value >= 10000000 indicates missing or dubious (e.g., negative) parallax data in Hipparcos. +9. dist: The star's distance in parsecs, the most common unit in astrometry. To convert parsecs to light years, multiply by 3.262. A value >= 100000 indicates missing or dubious (e.g., negative) parallax data in Hipparcos. 10. pmra, pmdec: The star's proper motion in right ascension and declination, in milliarcseconds per year. 11. rv: The star's radial velocity in km/sec, where known. 12. mag: The star's apparent visual magnitude.