J/BaltA/21/465 Vilnius photometry in NGC7129 and NGC7142 (Maskoliunas+, 2012)
Photometry and classification of stars in the direction of open clusters
NGC 7129 and NGC 7142 in Cepheus.
I. Magnitudes, color indices and spectral types of 2140 stars.
Maskoliunas M., Zdanavicius J., Zdanavicius K., Straizys V.
<Baltic Astron. 21, 465 (2012)>
=2012BaltA..21..465M 2012BaltA..21..465M
ADC_Keywords: Clusters, open ; Photometry, Vilnius
Keywords: stars: fundamental parameters, classification -
Galaxy: open clusters: individual: NGC 7129, NGC 7142 -
ISM: clouds: individual: TGU H645 P2, LDN 1181
Abstract:
In a 1.5 square degree area, centered at RA=21:44:30, DE=+65:58,
we have determined magnitudes and color indices for 2140 stars in the
Vilnius seven-color system down to V=17mag. This area includes a
star-forming region with the open cluster NGC 7129 embedded in a dense
dust cloud TGU 645 (LDN 1181), close to the Cepheus Flare, and a
distant old open cluster NGC 7142 seen through a semi-transparent
window. For most of the stars spectral and luminosity classes in the
MK system, determined from the photometric data, are given.
Description:
Table 2 contains the results of photometry of 2140 stars down to
V=17mag in the Vilnius seven-color system in the direction of the open
clusters NGC 7129 and NGC 7142. Photometric data are used to classify
stars in spectral and luminosity classes. The identification numbers,
coordinates, V magnitudes and six color indices in the Vilnius system
and photometric spectral types are given. Spectral types of some stars
are corrected in comparison to the published version. The coordinates
are from the PPMXL catalog (Roeser et al., 2010AJ....139.2440R 2010AJ....139.2440R, I/317).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 76 2140 Catalogue of stars measured in the Vilnius
seven-color system
notes.dat 79 32 Individual notes
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See also:
I/317 : The PPMXL Catalog (Roeser+ 2010)
J/PASP/103/536 : CCD Photometry of NGC 7142 (Crinklaw+ 1991)
J/AJ/134/1216 : NGC 7142, 6939 and IC 4756 stars abundances (Jacobson+, 2007)
J/A+A/507/227 : NGC 7129 pre-main sequence stars (Stelzer+, 2009)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- MMZ [1/2140] Sequential number
5 A1 --- n_MMZ [*] * indicates a note in notes.dat file
7- 8 I2 h RAh Right ascension (J2000.0)
10- 11 I2 min RAm Right ascension (J2000.0)
13- 17 F5.2 s RAs Right ascension (J2000.0)
19 A1 --- DE- Declination sign (J2000.0)
20- 21 I2 deg DEd Declination (J2000.0)
23- 24 I2 arcmin DEm Declination (J2000.0)
26- 29 F4.1 arcsec DEs Declination (J2000.0)
31- 35 F5.2 mag Vmag ? Vilnius V magnitude
37- 40 F4.2 mag U-V ? Vilnius U-V colour index
42- 45 F4.2 mag P-V ? Vilnius P-V colour index
47- 50 F4.2 mag X-V Vilnius X-V colour index
52- 55 F4.2 mag Y-V Vilnius Y-V colour index
57- 60 F4.2 mag Z-V Vilnius Z-V colour index
62- 65 F4.2 mag V-S ? Vilnius V-S colour index
66 A1 --- u_V-S uncertainty flag on V-S (1)
68- 76 A9 --- SpT ? Photometric spectral type (2)
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Note (1): Uncertainty flag : if V-S errors are larger than 0.05mag.
Note (2): Photometric spectral types are given in lower case letters.
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- MMZ Sequential number
6- 79 A74 --- Note Text of the note
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Acknowledgements:
Vytas Straizys, vytautas.straizys(at)tfai.vu.lt
(End) V. Straizys [Vilnius Univ., Lithuania], P. Vannier [CDS] 26-Mar-2014