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J/BaltA/12/323   NGC 1750 + 1758 Vilnius photometry    (Straizys+, 2003)

Overlapping open clusters NGC 1750 and NGC 1758 behind the Taurus dark clouds. II. CCD photometry in the Vilnius system. Straizys V., Kazlauskas A., Cerniauskas A., Boyle R.P., Vrba F.J., Philip A.G.D., Laugalys V., Cernis K., Smriglio F. <Baltic Astronomy, 12, 323-351 (2003)> =2003BaltA..12..323S
ADC_Keywords: Clusters, open ; Photometry, Vilnius ; Stars, distances Keywords: techniques: photometric: Vilnius photometric system - stars: fundamental parameters, classification - ISM: extinction, dust clouds - open clusters: individual objects: NGC 1750, NGC 1758 Abstract: Seven-color photometry in the Vilnius system has been obtained for 420 stars down to V=16mag in the area containing the overlapping open clusters NGC 1750 and NGC 1758 in Taurus. Spectral and luminosity classes, color excesses, interstellar extinctions and distances are given for 287 stars. The classification of stars is based on their reddening-free Q-parameters. 18 stars observed photoelectrically were used as standards. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 90 18 Results of photoelectric photometry of standards stars table2.dat 85 420 Results of CCD photometry table3.dat 27 95 New photometric quantification, extinctions and distances of stars of paper I (Straizys et al. 1992BaltA...1..125S)
See also: J/A+A/333/471 : NGC 1750 + NGC 1758 UBVRI photometry (Galadi-Enriquez+ 1998) J/A+A/337/125 : NGC 1750 + NGC 1758 membership prob. (Galadi-Enriquez+, 1998) J/A+AS/131/239 : NGC 1750 + NGC 1758 BVR photometry (Galadi-Enriquez+ 1998) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [SKC2003b] Sequential number 5- 10 F6.3 mag Vmag Vilnius V magnitude 12- 16 F5.3 mag U-V Vilnius U-V colour index 18- 22 F5.3 mag P-V Vilnius P-V colour index 24- 28 F5.3 mag X-V Vilnius X-V colour index 30- 34 F5.3 mag Y-V Vilnius Y-V colour index 36- 40 F5.3 mag Z-V Vilnius Z-V colour index 42- 46 F5.3 mag V-S Vilnius V-S colour index 48- 52 F5.3 mag e_Vmag rms uncertainty on Vmag 54- 58 F5.3 mag e_U-V rms uncertainty on U-V 60- 64 F5.3 mag e_P-V rms uncertainty on P-V 66- 70 F5.3 mag e_X-V rms uncertainty on X-V 72- 76 F5.3 mag e_Y-V rms uncertainty on Y-V 78- 82 F5.3 mag e_Z-V rms uncertainty on Z-V 84- 88 F5.3 mag e_V-S rms uncertainty on V-S 90 I1 --- Nobs Number of observations
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [SKC2003b] Sequential number 5 I1 h RAh Right ascension (J2000) 7 I1 min RAm Right ascension (J2000) 9- 12 F4.1 s RAs Right ascension (J2000) 14 A1 --- DE- Declination sign (J2000) 15- 16 I2 deg DEd Declination (J2000) 18- 19 I2 arcmin DEm Declination (J2000) 21- 22 I2 arcsec DEs Declination (J2000) 24- 29 F6.3 mag Vmag Vilnius V magnitude 31- 35 F5.3 mag U-V Vilnius U-V colour index 37- 41 F5.3 mag P-V Vilnius P-V colour index 43- 47 F5.3 mag X-V ? Vilnius X-V colour index 49- 53 F5.3 mag Y-V Vilnius Y-V colour index 55- 59 F5.3 mag Z-V Vilnius Z-V colour index 61- 65 F5.3 mag V-S Vilnius V-S colour index 67- 75 A9 --- SpType Photometric spectral type 77- 80 F4.2 mag AV ? Absorption in V band 82- 85 I4 pc r ? Distance
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 3 I3 --- SChM Sequential number from paper I (Straizys et al. 1992BaltA...1..125S) 5- 14 A10 --- SpType Photometric spectral type 17- 20 F4.2 mag AV Absorption in V band 24- 27 I4 pc r Distance
History: Prepared via OCR at CDS. References: Straizys et al., Paper I 1992BaltA...1..125S
(End) Patricia Vannier [CDS] 19-Dec-2006
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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