File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file ident_o.dat 94 368 Star identifications retained for the maps ident_b.dat 94 362 Star identifications from Baily ident_a.dat 82 354 Star ids from VizieR J/A+A/530_A93 dists_o.dat 33 368 Differences with modern positions halhou_oo.dat 23 342 Cross-mapping with Houtman's catalog halkep_oo.dat 34 343 Cross-mapping with Kepler's catalog hallac_o.dat 17 348 Cross-mapping with Lacaille's catalog halref_o.dat 19 365 Cross-mapping with the reference catalog -------------------------------------------------------------------------------- Byte-by-byte Description of file: ident_o.dat ident_b.dat ident_a.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- YNo [1/341]? Unique star number (1) 5- 7 A3 --- YCon ?Halley constellation abbreviation (1) 9- 10 I2 --- YNum ?Halley number in constellation (1) 11 A1 --- NoId [*+?]? Identification issue (2) 12- 14 A3 --- BCon ?Bayer constellation 16- 18 A3 --- BLet ?Bayer letter 20 A1 --- BInd ?Bayer index 22- 24 A3 --- FCon ?Flamsteed constellation 26- 28 I3 --- fnum [1-141]? Flamsteed number 30- 33 I4 --- HR [1-9110]? Bright Star catalog number 35- 40 I6 --- HD [1-359083]? Henry Draper catalog number 41 A1 --- HD_FL [*]? Next HD number applies 42- 47 I6 --- HIP [1-120416]? Hipparcos catalog number 49- 54 I6 --- SAO [1-258997]? SAO catalog number 55 A1 --- SAO_FL [*]? Next SAO number applies 56- 59 A4 --- Com ?Component letter(s) (3) 61- 65 F5.2 --- Mag ?Magnitude (4) 66 A1 --- Shr [*]? Shared magnitude 67- 81 A15 --- 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 a possible but less secure 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): component letter(s) from the Hipparcos catalog (or sometimes the SAO or Bright Star catalog). Note (4): magnitude from the Hipparcos catalog or the SAO catalog. -------------------------------------------------------------------------------- Byte-by-byte Description of file: dists_o.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- YNo [1/341]? Unique star number 5- 7 A3 --- YCon ?Halley constellation abbreviation 9- 10 I2 --- YNum ?Number in constellation 12- 18 F7.2 arcmin dLO ?Difference in longitude.cos(LA) (1) 20- 26 F7.2 arcmin dLA ?Difference in latitude (1) 28- 33 F6.2 arcmin dist ?Distance between match and Halley (1) -------------------------------------------------------------------------------- Note (1): difference (HIP - Halley), or (SAO - Halley) if there is no HIP match, based on the positions in halley.dat and identifications in ident_o.dat -------------------------------------------------------------------------------- Byte-by-byte Description of file: halhou_oo.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- YNo [1/341]? Unique Halley star number (G1) 5- 7 A3 --- YCon ?Halley constellation abbreviation (G1) 9- 10 I2 --- YNum ?Halley number in constellation (G1) 12 A1 --- Status [=>x*] status (G2) 14-16 I3 --- DNo [1/305]? Unique Houtman star number 18-20 A3 --- DCon ?Houtman constellation abbreviation 22-23 I2 --- DNum ?Houtman number in constellation -------------------------------------------------------------------------------- Byte-by-byte Description of file: halkep_oo.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- YNo [1/341]? Unique Halley star number (G1) 5- 7 A3 --- YCon ?Halley constellation abbreviation (G1) 9- 10 I2 --- YNum ?Halley number in constellation (G1) 12 A1 --- Status [=>x*] status (G2) 24- 27 I4 --- KNo ?Record number in Tabulae Rudolphinae 29- 31 A3 --- TCon ?Kepler constellation abbreviation 33- 34 I2 --- TNum ?Kepler number in constellation -------------------------------------------------------------------------------- Byte-by-byte Description of file: hallac_o.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- YNo [1/341]? Unique Halley star number (G1) 5- 7 A3 --- YCon ?Halley constellation abbreviation (G1) 9- 10 I2 --- YNum ?Halley number in constellation (G1) 12 A1 --- Status [=<>x*] status (G2) 14- 17 I4 --- CA [1-1942]? Lacaille number in Coelum Australe -------------------------------------------------------------------------------- Byte-by-byte Description of file: halref_o.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- YNo [1/341]? Unique Halley star number (G1) 5- 7 A3 --- YCon ?Halley constellation abbreviation (G1) 9- 10 I2 --- YNum ?Number in constellation (G1) 12 A1 --- Status [=>x*] status (G2) 14- 19 I6 --- RefNo ?Number in the reference catalog -------------------------------------------------------------------------------- Global notes: Note (G1): the fields YNo YCon YNum are blank on continuation lines for the current record. Note (G2): status of this Halley object with respect to the other catalog, according to the identifications retained in the file ident_o.dat for Halley's catalog and either ident_o.dat or ident.dat for the other catalog: = indicates that the Halley and other catalog entries are identified as the same object or collection of objects, > indicates that the Halley catalog entry includes the other catalog's entry, and more (for instance if two components of a double star are distinguished in the other catalog but lumped into one entry in Halley's catalog), < indicates that the other catalog's entry includes Halley's catalog entry, and more (for this catalog, this only occurs in hallac_o.dat for 144 RCa 2 with respect to CA 964, because CA 964 is associated with both Car the and the cluster IC 2602). x indicates that the Halley catalog entry has an identification, but no match in the other catalog, * indicates that the Halley catalog entry is unidentified. -------------------------------------------------------------------------------- History: * 2022-08-01: new revised version. ================================================================================