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J/PASP/119/1233     BV photometry of M11 stars               (Koo+, 2007)

Variable stars in the open cluster M 11 (NGC 6705). Koo J.-R., Kim S.-L., Rey S.-C., Lee C.-U., Kim Y.H., Kang Y.B., Jeon Y.-B. <Publ. Astron. Soc. Pac., 119, 1233-1246 (2007)> =2007PASP..119.1233K
ADC_Keywords: Clusters, open ; Photometry, UBV Abstract: V-band time-series CCD photometric observations of the intermediate-age open cluster M11 were performed to search for variable stars. Description: We carried out time-series observations of M11 on 18 nights in 2004 June using a CCD camera attached to the LOAO 1.0m telescope in Arizona. A total of 1001 time-series images, i.e., 406 images with a long exposure of 600s and 595 images with a short exposure of 60s, were obtained with a V-band filter to secure faint objects, as well as bright ones. For the purpose of constructing a BV color-magnitude diagram of M11, additional B-band observations were made on one night of 2004 October: two frames with exposure times of 1000 and 100s. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file catalog.dat 70 22034 M11 BV photometry
See also: J/A+AS/128/255 : Proper motions in M 11 (Su+ 1998) J/A+A/412/721 : CCD Δa-photometry of 5 open clusters (Paunzen+, 2003) Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 5 I5 --- Seq [17/35565] Star sequential number, Cl* NGC 6705 KKR NNNNN in Simbad 7- 8 I2 h RAh Right ascension (J2000) 10- 11 I2 min RAm Right ascension (J2000) 13- 18 F6.3 s RAs Right ascension (J2000) 20 A1 --- DE- Declination sign (J2000) 21- 22 I2 deg DEd Declination (J2000) 24- 25 I2 arcmin DEm Declination (J2000) 27- 31 F5.2 arcsec DEs Declination (J2000) 33- 38 F6.3 mag Bmag B magnitude 40- 44 F5.3 mag e_Bmag rms uncertainty on Bmag 46- 51 F6.3 mag Vmag V magnitude 53- 57 F5.3 mag e_Vmag rms uncertainty on Vmag 59- 64 F6.3
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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