ADC/CDS Standard Document for Catalog:/catalogs/2/2122B/
ADC/CDS Standard Document for Catalog:| 1. Use the ADC Data Viewer Suite to visualize the data. |
|
| 2. Get the data files via anonymous FTP. (See Note.) |
|
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 A&AS 71, 119 (1987)
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
dubious.dat 79 3700 Stars showing significant differences in UBV
but not known to be variable
refs.dat 80 4986 References ordered by Number
refj.txt 80 5215 References ordered by Journal
codes.txt 80 2462 Description of the LID numbering system
adc.doc 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.dat"
Byte-by-byte Description of file: ubv.dat, ubva.dat, merged.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 11 I10 --- LID Code number (see file codes.txt)
12 A1 --- Rem *[1-8DQSTU] Remark on duplicity or
identification of components
13 A1 --- Var *[VD] Remark on variability
15- 20 F6.3 mag Vmag [-1.5/21.5]? V magnitude
22- 27 F6.3 mag B-V [-1/6.5]? B-V colour index
29- 34 F6.3 mag U-B *[-1.5/9.2]? U-B colour index
37 A1 --- n_UBV [S/*] Flag on the number of measurements:
S = Standard star
/ = Number is unknown
* = the minimum number of measurements
is given
38- 40 I3 --- o_UBV ? Number of measurements
44- 48 I5 --- r_UBV Reference key (see file refs.dat)
--------------------------------------------------------------------------------
Note on Rem: 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)
Note on Var: The star 100001202 is written as 100012022D, pushing the D into
the field reserved for V. This has been left since the field is
an A format field. The D is explained in the note on Rem.
Note on U-B: Two stars have values of U-B that appear to be in errors:
620055740 has U-B = -1.62
900011054 has U-B = -2.23; this star is variable.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: dubious.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 11 I10 --- LID Code number (see file codes.txt)
12 A1 --- Rem [1-8DQSTU] Duplicity as in file "ubv.dat"
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.dat"
36- 38 I3 --- o_UBV ? Number of measurements
41- 45 I5 --- r_UBV ? Reference key (see file refs.dat)
47 A1 --- ErrFlag [*] '*' indicates a known error
49- 79 A31 --- Comment Comment on inconsistency
--------------------------------------------------------------------------------
Byte-by-byte Description of file: refs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 I5 --- r_UBV [1/73005]? Reference number,
blank 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
Related Data:
II/193 Catalogue (1986-1992 Data)
References:
Jennens, P.A., and Helfer, H.L., 1975, MNRAS 172, 667.
Johnson, H.L., and Morgan, W.W., 1953, ApJ 117, 313.
Kunkel, W.E., and Rydgren, A.E., 1979, AJ 84, 633.
Lanz, T., 1986, A&AS 65, 195.
Moffett, T.J., and Barnes, T.G., 1979, AJ 84, 627.
Neckel, Th., and Chini, R., 1980, A&AS 39, 411.
Nicolet, B., 1975, A&AS 22, 329
Historical Notes:
* Sept.1987: version 'A' by Anne C. Raugh (see "adc.doc",
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.dat" 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.dat" file
------------------------------------------------------------------------
(A) 100159560 (6) Ref=8015 (instead of 80150) and shifted columns
600247163 '+' removed in B-V column
------------------------------------------------------------------------
Corrections in "dubious.dat" file
------------------------------------------------------------------------
318050165 Deleted, because U-B was not measured in ref. 49
------------------------------------------------------------------------
Corrections in "refs.dat" file
------------------------------------------------------------------------
(A) 100 Page=221 (instead of 223)
(A) 1464 Page=254 (instead of 1272)
------------------------------------------------------------------------
================================================================================
(End) Francois Ochsenbein [CDS] 11-Jul-1995