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J/PASP/113/267    Mount Wilson catalogue photometric properties (Sandage, 2001)

The Mount Wilson halo mapping project 1975-1985. II. Photometric properties of the Mount Wilson catalogue of photographic magnitudes in Selected Areas 1-139. Sandage A. <Publ. Astron. Soc. Pac. 113, 267 (2001)> =2001PASP..113..267S
ADC_Keywords: Photometry, UBVRI ; Photometry, photographic Abstract: This paper is partly a review of the history of the making of the Mount Wilson Catalogue of Photographic Magnitudes in Selected Areas 1-139 (hereafter the MWC), begun in 1909 and completed in 1930, and it is partly the presentation of new photometric results concerning it. Photoelectric photometry of 435 stars in the 11 Selected Areas of SA 28, 29, 45, 55, 57, 71, 82, 94, 106, 107, and 118 of the MWC is given. The data are used to derive magnitude corrections to the MWC for these areas. Ten of the areas are in the Galactic meridional plane (Galactic longitudes of 0° and 180°). These are the same areas used by Becker in his Basel program of star counts for the study of Galactic structure. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea.dat 89 435 Photoelectric photometry tableb.dat 55 618 Photographic photometry for Mount Wilson catalog star
See also: VI/19 : UBV Photoelectric Sequences in SA 92-115 (Landolt 1973) II/118 : UBVRI standards around Celestial Equator (Landolt 1983) II/183A : UBVRI Photometric Standards (Landolt 1992) Byte-by-byte Description of file: tablea.dat
Bytes Format Units Label Explanations
1- 6 A6 --- SA SA number (SA FFF) 8- 10 A3 --- SKvR Identification number (NNNS) in the Mont Wilson catalog, MWC, [SKV30] FFF-NNNs in Simbad 12- 21 A10 --- Name Other name if no SKvR number (1) 23- 27 F5.2 mag mpg ? Photographic magnitude (copied from the Seares et al. listings) 29- 33 F5.2 mag Bpe Photoelectrical B magnitude 34 A1 --- u_Bpe Uncertainty flag on Bpe 35 A1 --- n_Bpe [P] Note (2) 37- 41 F5.2 mag Vpe Photoelectrical V magnitude 42 A1 --- u_Vpe Uncertainty flag on Vpe 43 A1 --- n_Vpe [P] Note (2) 45- 49 F5.2 mag U-B ? U-B colour index 50 A1 --- u_U-B Uncertainty flag on U-B 51 A1 --- n_U-B [P] Note (2) 53- 57 F5.2 mag B-V B-V colour index 58 A1 --- u_B-V Uncertainty flag on B-V 59 A1 --- n_B-V [P] Note (2) 61- 64 F4.2 mag (V-R)MW ? Mount Wilson (V-R) colour index 65 A1 --- u_(V-R)MW Uncertainty flag on (V-R)MW 67- 70 F4.2 mag (R-I)MW ? Mount Wilson (R-I) colour index 72- 78 A7 --- Nobs Number of times the star was observed (3) 81- 89 A9 --- Com Comments (4)
Note (1): Names nomenclature: SA 57 Becker NNN = Basel SA 57-NNN in Simbad SA 106 LNNNN = SA 106-NNNN in Simbad SA 118 MW NNN Note (2): Data origin: P: data by Purgathofer (1969LowOB...7...98P) If P is placed next to a U-B value only, the B and V magnitudes are the values measured only in the Mount Wilson program alone. L: data by Landolt (1973, Cat. VI/19; 1983, Cat. II/118; 1992, Cat. II/183) Note (3): Where two numbers are given, the first refers to the B and V measurement and the second to the V-R measurement P2000: A finding chart for the faint stars listed in SA 57 measured with the Palomar 200 inch is given in Figure 2 of the paper. These are labeled with their Becker numbers which he assigned while measuring a series of 200 inch plates sent to him for the Basel program. These particular stars were measured photoelectrically in the present program to provide Basel with faint standards. Note (4): Comments: P stands for Purgathofer (1969LowOB...7...98P) L stands for Landolt (1973, Cat. VI/19; 1983, Cat. II/118; 1992, Cat. II/183)
Byte-by-byte Description of file: tableb.dat
Bytes Format Units Label Explanations
1- 6 A6 --- SA SA region (SA FFF) 8- 10 A3 --- SKvR Identification number (NNNS) in the Mont Wilson catalog, MWC, [SKV30] FFF-NNNs in Simbad 12- 16 F5.2 mag mpg Photographic magnitude (copied from the Seares et al. listings) 17 A1 --- n_mpg [:dx?] Note on mpg (1) 19- 23 F5.2 mag Bpg ? Photographic B magnitude 24 A1 --- u_Bpg Uncertainty flag on Bpg 26- 30 F5.2 mag Vpg ? Photographic V magnitude 31 A1 --- u_Vpg Uncertainty flag on Vpg 33- 37 F5.2 mag RMW ? Mont Wilson R magnitude 38 A1 --- u_RMW [:)] Uncertainty flag on RMW 40- 44 F5.2 mag B-V ? B-V colour index 45 A1 --- u_B-V Uncertainty flag on B-V 47- 51 F5.2 mag (V-R)MW ? Mount Wilson (V-R) colour index 52- 53 A2 --- u_(V-R)MW [:)? ] Uncertainty flag on (V-R)MW
Note (1): "d," "x" as in the MWC
History: From electronic version of the journal References: Sandage, Paper I 1997PASP..109.1193S Seares, 1914ApJ....39..307S Seares, 1915, Proc. Natl. Acad. Sci., 1, 309 Seares, 1917ApJ....46..117S Seares, 1920ApJ....52..162S Seares, 1922a, Trans. IAU, 1, 69 Seares, 1922ApJ....56...97S Seares, 1925ApJ....62..168S Seares, 1928ApJ....67..123S
(End) James Marcout, Patricia Bauer [CDS] 19-Jun-2001
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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