File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file tycho_m.dat 45 1004 Tycho's manuscript catalog from Dreyer tycho_t.dat 45 777 Tycho's catalog from Progymnasmata (1602) tycho_y.dat 45 777 Tycho's catalog from Progymnasmata (1610) tycho_d.dat 45 777 Dreyer's version of Progymnasmata catalog tycho_k.dat 45 1030 Tycho's catalog from Tabulae Rudolphinae tycho_b.dat 45 1030 Baily's version of Tab. Rudolphinae catalog tycho_z.dat 45 965 Flamsteed's version from Historia Coelestis corrs_m.dat 45 1 Corrections to tycho_m.dat corrs_t.dat 45 13 Corrections to tycho_t.dat corrs_y.dat 45 40 Corrections to tycho_y.dat corrs_d.dat 45 8 Corrections to tycho_d.dat corrs_k.dat 45 18 Corrections to tycho_k.dat corrs_b.dat 45 12 Corrections to tycho_b.dat ident_o.dat 89 1074 Identifications retained for the maps ident_m.dat 81 1058 Identifications from Dreyer ident_b.dat 81 1061 Identifications from Baily ident_z.dat 81 1030 Identifications from Flamsteed's version ident_f.dat 81 1083 Identifications from Flamsteed's catalog ident_a.dat 81 1037 Identifications from VizieR J_A+A_516_A28 ident_r.dat 89 1071 Identifications from Rawlins dists_mo.dat 44 107 Differences with modern positions -------------------------------------------------------------------------------- Byte-by-byte Description of files: tycho_m.dat tycho_t.dat tycho_y.dat tycho_d.dat tycho_k.dat tycho_b.dat tycho_z.dat corrs_m.dat corrs_t.dat corrs_y.dat corrs_d.dat corrs_k.dat corrs_b.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 I4 --- MNo ?Record number in the manuscript catalog 6- 9 I4 --- TNo ?Record number in Progymnasmata catalog 11- 14 I4 --- KNo ?Record number in Tabulae Rudolphinae 16- 18 A3 --- TCon Constellation abbreviation 20- 21 I2 --- TNum ?Number in constellation (1) 22 A1 --- bFlag [*]? Flag (2) 23- 24 I2 --- LO.z [0/11]? Longitude 1601 Zodiac sign (3) 26- 27 I2 deg LO.d ?Longitude (degrees) within zodiac sign 29- 30 I2 arcmin LO.m ?Longitude (minutes) 31- 32 F2.1 arcmin LO.mi ?Longitude (minutes) fractional part (4) 34 A1 --- LA.- [+-]? Latitude sign 35- 36 I2 deg LA.d ?Latitude (degrees) 38- 39 I2 arcmin LA.m ?Latitude (minutes) 40- 41 F2.1 arcmin LA.mi ?Latitude (minutes) fractional part (5) 43- 44 A2 --- Mag Magnitude value (6) 45 A1 --- Flag New star flag (7) -------------------------------------------------------------------------------- Note (1): The absence of constellation abbreviation and number in constellation indicates a continuation line for the previous star. The record numbers are also void for such lines. Continuation lines are found only in Kepler's version, where they contain alternative positions or additional comments. Note (2): A * here indicates that there is a note about this star. In Baily's version, in the Notes section pp. 160--165. In Dreyer's version of the Manuscript catalog, in the editor's notes, pp. 407--417. In Dreyer's version of the Progymnasmata catalog, in the editor's notes, pp. 439--461. Note (3): The degrees part of the ecliptic longitude is expressed by two components: the zodiac sign, an integer from 0 (Aries) to 11 (Pisces), and the offset in degrees (in the range [0, 30[) within the zodiac sign. The degrees part of the ecliptic longitude is therefore 30 * Lo.z + Lo.d. All versions use the traditional symbols for zodiac signs rather than integers. Note (4): This field is empty or has the value .5, in which case the minutes part of the ecliptic longitude is Lo.m + Lo.mi. Note (5): This field is empty or has the value .5, in which case the minutes part of the ecliptic latitude is La.m + La.mi. Note (6): The magnitude value is an integer from 1 to 6 or the mention 'ne' for nebulous objects. In the Progymnasmata version of the catalog, the integer value may be followed by a dot '.' meaning that the star is a little fainter than indicated by the given value, or a colon ':' meaning that the star is a little brighter. Note (7): An asterisk here marks stars that have not been observed by the ancients (see the note at the bottom of p. 451 of Dreyer's "Tychonis Brahe Dani Scripta Astronomica", Tome II, Hauniae in Libraria Gyldenlaliana, 1916, for the explanation of the magnitude dots and the new star flag, and Dreyer's "Tycho Brahe : a picture of scientific life and work in the sixteenth century", Edinburgh : Adam & Charles Black, 1890, p. 354 for an explanation of the magnitude dots). -------------------------------------------------------------------------------- Byte-by-byte Description of files: ident_o.dat ident_m.dat ident_b.dat ident_z.dat ident_f.dat ident_a.dat ident_r.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 I4 --- MNo ?Record number in the manuscript catalog (1) 6- 9 I4 --- TNo ?Record number in Progymnasmata catalog (1) 11- 14 I4 --- KNo ?Record number in Tabulae Rudolphinae (1) 16- 18 A3 --- TCon Constellation abbreviation (1) 20- 21 I2 --- TNum ?Number in constellation (1) 22 A1 --- NoId [*+]? Identification issue (2) 23- 25 A3 --- BCon ?Bayer constellation 27- 29 A3 --- BLet ?Bayer letter 30 A1 --- IFlag [*]? Indexless flag (3) 31 A1 --- BInd ?Bayer index 33- 35 A3 --- FCon ?Flamsteed constellation 37- 39 I3 --- FNum [1-141]? Flamsteed number 41- 44 I4 --- HR [1-9110]? Bright Star catalog number 46- 51 I6 --- HD [1-359083]? Henry Draper catalog number 53- 58 I6 --- HIP [1-120416]? Hipparcos catalog number 60- 63 A4 --- Com ?Component letter(s) (4) 65- 91 A27 --- Name ?Object name(s) -------------------------------------------------------------------------------- Note (1): these fields are empty on lines containing additional matches for the current star. Note (2): a '*' here indicates that this catalog entry has no identification; a '+' indicates that the identification is not given directly in the source catalog but has been inferred from catalog notes or non-standard designations, or corrected from an obvious error in the catalog. Note (3): a '*' here indicates that the indexless Bayer letter has been interpreted as this component. Note (4): component letter(s) from the Bright Star catalog (corresponding to component letters in the ADS catalog). -------------------------------------------------------------------------------- Byte-by-byte Description of files: dists_mo.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 I4 --- MNo ?Record number in the manuscript catalog 6- 9 I4 --- TNo ?Record number in Progymnasmata catalog 11- 14 I4 --- KNo ?Record number in Tabulae Rudolphinae 16- 18 A3 --- TCon Constellation abbreviation 20- 21 I2 --- TNum ?Number in constellation 23- 29 F7.2 arcmin dLO ?Difference in longitude.cos(LA) (1) 31- 37 F7.2 arcmin dLA ?Difference in latitude (1) 39- 44 F6.2 arcmin dist ?Distance between match and Tycho (1) -------------------------------------------------------------------------------- Note (1): difference (HIP - Tycho), or (HD - Tycho) if there is no HIP match, based on the positions in tycho_m.dat and identifications in ident_o.dat -------------------------------------------------------------------------------- History: * 2019-06-20: initial release. * 2019-08-19: added distances file. * 2019-11-30: minor corrections to ident_*.dat and let ident_f.dat reflect Flamsteed's catalog exactly, including the most obvious errors. ================================================================================