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The columns in the table are mostly selfexplanatory; here is the list:

1) constellation as determined with the Vizier Catalogue VI/42 (see CDS) based on the coordinates of exoplanet host star. When coordinates become available with bigger accuracy, this might lead to some small changes in this column
2) component given in letters b,c,d,e etc. Stars are given in capitals B, C, D etc. Please note that I give the planet with the shortest period the lowest letter, because I cannot bring myself to the unsystematic way of naming planets as other people do. As long as exoplanets do not have any systematic name yet, I will sort components according to period.
3) Colloquial name the name of the exoplanet as it is used at the moment in several or all publications. This can be several names, not always all names are mentioned here as it would clutter the column and only add to the confusion. The notation (unc) means that the exoplanet has not been confirmed with radial velocity measurements yet.
Note: my notation of components for UZ For, NN Ser and Z Cha differs
4) Kepler ID Please note that the confirmed exoplanets get a Kepler-XXX designation by the Kepler team. All others are noted with KIC. I do not use the KOI Names as I see those as completely superfluous.
5) Period as from exoplanet.eu or Kepler or sometimes from the original publication
6) RA and DE are the right ascension and declination of the host star of the exoplanet
7) The columns HD, BD, GSC, 2MASS, USNO and GCVS refer to the identified designated stars from the same catalogues. The value for the criterium to decide if there is a match presents the margin of error between the exoplanet coordinates and the catalogue coordinates.
If there is an asterisk after the catalogue entry, the difference will be slightly bigger than the criterium (in the HD/BD case sometimes a lot bigger). The addition bl denotes blending problems with the identification (this is mostly for GSC stars).
    A) HD = Harvard Designation (criterium: 1 sometimes more)
    B) BD = Bonner / Southern Durchmusterung, CD = Cordoba Durchmusterung (criterium : 1 sometimes more)
    C) GSC = Guide Star Catalogue (criterium : 15)
    D) 2MASS = 2MASS Catalogue (criterium : 1) * denotes distance of 1 till 2 arcseconds
    E) USNO = USNO-B1.0 Catalogue (criterium : 1)
    F) GCVS = General Catalogue of Variable Stars (criterium : 5")