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II/122B             UBV Photoelectric Catalog: data 1953-1985  (Mermilliod 1987)

UBV Photoelectric Photometry Catalogue (1986): I. The Original data Mermilliod J.C. <Astron. Astrophys. Suppl. Ser. 71, 413 (1987)> =1987A&AS...71..413M
ADC_Keywords: Photometry, UBV Description: The catalogue collects all UBV photoelectric photometry data published since 1953 to the end of 1985 in the Johnson and Morgan system. In addition, data obtained in closely related systems using UBV filters have also been collected. All the data have been merged, yielding a final catalogue of 136719(*) entries concerning 87267 stars and components. The data have been taken from 1413 (UBV) and 127 (other) references found in 73 different periodicals. Great care has been taken to detect and correct all kinds of errors. (*) Two entries have been deleted in version 'B' of this catalogue The analysis of the data is published in 1987A&AS...71..119M File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file ubv.dat 48 109293 Measurements in Johnson UBV system ubva.dat 48 27425 *Measurements in closely related UBV filters merged.dat 48 136717 Merged data from ubv and ubva refs.dat 80 4986 References ordered by Number refj.dat 80 5215 References ordered by Journal dubious.dat 80 3700 Stars showing significant differences in UBV but not known to be variable codes.txt 80 2462 Description of the LID numbering system adc.txt 122 654 Document of Version 'A' of Catalogue adc.tex 79 548 Document of Version 'A' in LaTeX adc.sty 78 68 LaTeX definitions needed to process adc.tex
Note on ubva.dat: see Note (1) of file "refs"
See also: II/193 : UBV Photoelectric Catalog: Data 1986-1992 (Mermilliod 1994) Byte-by-byte Description of file: ubv.dat ubva.dat merged.dat
Bytes Format Units Label Explanations
2- 11 I10 --- LID Code number (see details in file "codes.txt") 12 A1 --- Rem [1-8DQSTU] Remark on duplicity or identification of components (1) 13 A1 --- Var [V] Remark on variability 15- 20 F6.3 mag Vmag [-1.5/21.5]? V magnitude 22- 27 F6.3 mag B-V ? B-V colour index 29- 34 F6.3 mag U-B ? U-B colour index 37 A1 --- n_UBV [S/*] Flag on the number of measurements: S = Standard star / = Number is unknown * = a minimum number of measurements is given 38- 40 I3 --- o_UBV ? Number of measurements 44- 48 I5 --- r_UBV Reference key (>2000 for non-Johnson filters, see file refs)
Note (1): the components are indicated by an extra digit; "D" stands for double "Q" for obvious misidentifications (two incompatible measurements of the same star in the same paper) "S" to "U" designates supplementary stars (example in Praesepe, KW 250 and KW 250s both exist)
Byte-by-byte Description of file: dubious.dat
Bytes Format Units Label Explanations
2- 11 I10 --- LID Code number (see details in file "codes.txt") 12 A1 --- Rem [1-8DQSTU] Duplicity as in file "ubv" 14- 19 F6.3 mag Vmag ? V magnitude 21- 26 F6.3 mag B-V ? B-V color 28- 33 F6.3 mag U-B ? U-B color 35 A1 --- n_UBV [S/*] Flag on the number of measurements, as in file "ubv" 36- 38 I3 --- o_UBV ? Number of measurements 41- 45 I5 --- r_UBV ? Reference key (>2000 for non-Johnson filters, see file refs) 47 A1 --- f_UBV [*] '*' indicates a known error 49- 80 A32 --- Comment Comment on inconsistency
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 5 I5 --- Ref [1/73005] Reference number, repeated for a continuation record (1) 9- 80 A72 --- Text Full reference
Note (1): the first two digits of the reference number is related to the used UBV system: 02xxx BV from Cape UcBV system (Nicolet 1975; Catalogue II/27) 14xxx UBV(E) data from Eggen 37xxx UBViyz, Jennens and Helfer (1975) 08xxx UBV(RI), Johnson standards (Johnson and Morgan 1953) (*) 68XXX UBV(RI), Kunkel and Rydgren (1979) (*) 72XXX UBV(RI), Moffet and Barnes (1979) (*) 73XXX UBV(RI), Neckel and Chini (1980) (*) (*) Various UBVRI systems, see Lanz 1986; Catalogue II/116
Historical Notes: * Sept.1987: version 'A' by Anne C. Raugh (see "adc.txt", or "adc.tex") This version is included on the "Selected Astronomical Catalogs, Vol.1" CD-ROM, directory /photom/ubv * 11-Jul-1995: version 'B' (Francois Ochsenbein, CDS) The format was transformed to be fully compatible with catalogue II/193 (1986-1992 data): "STD" flag moved to column 37. The discrepant values were checked, leading to the following corrections for LID stars (the order is provided within parentheses when several measurements exist for a single star) (corrections already mentioned in version 'A' are preceded by (A)) ------------------------------------------------------------------------ Corrections in "ubv" file ------------------------------------------------------------------------ -006007270 shifted columns (A) -004611571 (2) deleted (was duplicated) -002306322 'I' in column "o_UBV" transformed to '1' (A) 003003360 could not be located in the reference #100, and was deleted; it contained the values: .01 + .42 - .01 2 1 100 (A) 100000886 (1) Reference is 0, not corrected 100025290 shifted columns 100047627D shifted columns 100156201 (3) shifted columns 100208786 (2) shifted columns 100285968 shifted columns (A) 100306247 (2) B-V=0.966 (instead of 9.966) 224670098 (1) B-V=0.0310 (the dot was missing) 251380319 (2) B-V=0.05 (the dot was missing) (A) 5122800921(2) Ref=390 (instead of 3900) (A) 5122800921(3) Ref=401 (instead of 4010) (A) 5122800921(4) Ref=411 (instead of 4110) (A) 620102305 o_UBV=3 (instead of blank) 642002248 shifted columns (A) 920330012 B-V=-0.29 (instead of 18.12) 926752107 B-V=-0.22 (instead of -1.05 which is U-B color) ------------------------------------------------------------------------ Corrections in "ubva" file ------------------------------------------------------------------------ (A) 100159560 (6) Ref=8015 (instead of 80150) and shifted columns 600247163 '+' removed in B-V column ------------------------------------------------------------------------ Corrections in "dubious" file ------------------------------------------------------------------------ 318050165 Deleted, because U-B was not measured in ref. 49 ------------------------------------------------------------------------ Corrections in "refs" file ------------------------------------------------------------------------ (A) 100 Page=221 (instead of 223) (A) 1464 Page=254 (instead of 1272) ------------------------------------------------------------------------ * 06-Nov-2006: ReadMe revisited References: Jennens, P.A., and Helfer, H.L., 1975MNRAS.172..667J Johnson, H.L., and Morgan, W.W., 1953ApJ...117..313J Kunkel, W.E., and Rydgren, A.E., 1979AJ.....84..633K Lanz, T., 1986A&AS...65..195L Moffett, T.J., and Barnes, T.G., 1979AJ.....84..627M Neckel, Th., and Chini, R., 1980A&AS...39..411N Nicolet, B., 1975A&AS...22..239N (Cat. II/27)
(End) Francois Ochsenbein [CDS] 11-Jul-1995, rev. 06-Nov-2006
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