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 1029 Tycho's catalog from Tabulae Rudolphinae tycho_b.dat 45 1029 Baily's version of Tab. Rudolphinae catalog tycho_z.dat 45 965 Flamsteed's version from Historia Coelestis corrs_m.dat 45 4 Corrections to tycho_m.dat corrs_t.dat 45 3 Corrections to tycho_t.dat corrs_y.dat 45 44 Corrections to tycho_y.dat corrs_d.dat 45 5 Corrections to tycho_d.dat corrs_k.dat 45 21 Corrections to tycho_k.dat corrs_b.dat 45 15 Corrections to tycho_b.dat cross_m.dat 51 1004 Identifications from Dreyer's man. version cross_b.dat 51 1009 Identifications from Baily's version cross_z.dat 51 962 Identifications from Flamsteed's version cross_f.dat 51 1042 Ident. from Flamsteed's own catalog dups.dat 59 56 Possible duplicate entries -------------------------------------------------------------------------------- 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: cross_m.dat cross_b.dat cross_z.dat cross_f.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 31 A1 --- BInd ?Bayer index 33- 35 A3 --- FCon ?Flamsteed constellation 37- 39 I3 --- FNum [1-141]? Flamsteed number 41- 42 I2 --- ZHr [0/23]? Hour part of the Piazzi designation 43 A1 --- Dot [.]? Dot delimiter 44- 46 I3 --- ZNum ?Piazzi number within the hour 48- 51 I4 --- GNum ?Groombridge number -------------------------------------------------------------------------------- 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 Baily's version, where they contain alternative identifications extracted from Baily's notes. Note (2): A '*' here indicates that this catalog entry has no identification. A '+' indicates that the identification has an issue described in notes.dat or notes_z.dat (for Flamsteed's version). In Baily's version, a '+' means that the identification has been extracted from Baily's notes or is marked with a question mark in the main text. -------------------------------------------------------------------------------- Byte-by-byte Description of file: dups.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 A3 --- Ver [mtk ] Version letter(s) (1) 5- 8 I4 --- MNo ?Record number (Manuscript) of first star 10- 13 I4 --- TNo ?Record number (Progymnasmata) of first star 15- 18 I4 --- KNo ?Record number (Kepler) of first star 20- 22 A3 --- TCon Constellation abbreviation of first star 24- 25 I2 --- TNum Number in constellation of first star 27 A1 --- Flag [=*] Flag (2) 29- 32 I4 --- MNo_ ?Record number (Manuscript) of second star 34- 37 I4 --- TNo_ ?Record number (Progymnasmata) of second star 39- 42 I4 --- KNo_ ?Record number (Kepler) of second star 44- 46 A3 --- TCon_ Constellation abbreviation of second star 48- 49 I2 --- TNum_ Number in constellation of second star 51- 56 F6.2 arcmin Dist ?Distance between the stars (3) 58- 60 A3 --- Con ?Actual constellation of the pair (4) -------------------------------------------------------------------------------- Note (1): Version(s) to which the entry applies m = Manuscript, t = Progymnasmata, k = Kepler. Note (2): An equal sign here flags the entries considered duplicates in Rawlins's DIO articles on Tycho's Star Catalog. A '*' flags entries that may not be actual duplicates but whose catalog positions place close to each other. Note (3): Distance in arcminutes between the members of the pair, based on Tycho's ecliptic coordinates in the catalog version(s) specified by Ver. This field and the Con field are present only on one of the entries for the duplicate pair. Note (4): The actual constellation of the pair, according to Tycho's ecliptic position. -------------------------------------------------------------------------------- History: * 2020-07-11: new revised release. ================================================================================