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J/AJ/117/286   Photometry of variable stars in NGC 7006    (Wehlau+, 1999)

Two-color CCD photometry of variable stars in NGC 7006 Wehlau A., Slawson R. W., Nemec J. M. <Astron. J. 117, 286 (1999)> =1999AJ....117..286W
ADC_Keywords: Clusters, globular ; Stars, variable Keywords: globular clusters: individual (NGC 7006) - RR Lyrae variable Abstract: B and V CCD photometry from 1984 through 1994 is presented for 50 RR Lyrae stars and two red variable stars in the globular cluster NGC 7006. New determinations of pulsation periods and period change rates are given and used to plot B light curves. The new photometry is combined with previously published photometry obtained from photographic plates taken in the 1930s, the 1950s and 1984 and used to derive O - C diagrams and new period change rates. V light curves based on the CCD data are also displayed, and colors derived from mean values of B and V are given. Period-amplitude diagrams and the color-magnitude diagram for the variables are shown. Objects: ----------------------------------------------- RA (2000) DE Designation(s) ----------------------------------------------- 21 01 29.4 +16 11 14 NGC 7006 = C 2059+160 ----------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 94 117 B CCD magnitudes for variables in NGC 7006 table3.dat 94 106 V CCD magnitudes for variables in NGC 7006
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 11 F11.3 d JD Julian date 17- 21 F5.2 mag V1Bmag ? B magnitude for star V1 25- 29 F5.2 mag V2Bmag ? B magnitude for star V2 33- 37 F5.2 mag V3Bmag ? B magnitude for star V3 41- 45 F5.2 mag V5Bmag ? B magnitude for star V5 49- 53 F5.2 mag V6Bmag ? B magnitude for star V6 57- 61 F5.2 mag V8Bmag ? B magnitude for star V8 65- 69 F5.2 mag V10Bmag ? B magnitude for star V10 73- 77 F5.2 mag V11Bmag ? B magnitude for star V11 81- 85 F5.2 mag V12Bmag ? B magnitude for star V12 89- 93 F5.2 mag V13Bmag ? B magnitude for star V13
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 11 F11.3 d JD Julian date 17- 21 F5.2 mag V1Vmag ? V magnitude for star V1 25- 29 F5.2 mag V2Vmag ? V magnitude for star V2 33- 37 F5.2 mag V3Vmag ? V magnitude for star V3 41- 45 F5.2 mag V5Vmag ? V magnitude for star V5 49- 53 F5.2 mag V6Vmag ? V magnitude for star V6 57- 61 F5.2 mag V8Vmag ? V magnitude for star V8 65- 69 F5.2 mag V10Vmag ? V magnitude for star V10 73- 77 F5.2 mag V11Vmag ? V magnitude for star V11 81- 85 F5.2 mag V12Vmag ? V magnitude for star V12 89- 93 F5.2 mag V13Vmag ? V magnitude for star V13
History: From AJ electronic edition
(End) Greg Schwarz [AAS] 06-Apr-2000
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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