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 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:
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FileName Lrecl Records Explanations
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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 1992BaltA...1..125S)
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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
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Bytes Format Units Label Explanations
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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
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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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
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- SChM Sequential number from paper I (Straizys et al.
1992BaltA...1..125S 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
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History:
Prepared via OCR at CDS.
References:
Straizys et al., Paper I 1992BaltA...1..125S 1992BaltA...1..125S
(End) Patricia Vannier [CDS] 19-Dec-2006