J/BaltA/19/63 IC 361 Vilnius photometry (Zdanavicius+, 2010)
Multicolor CCD photometry of the open cluster IC 361.
Zdanavicius J., Bartasiute S., Boyle R.P., Vrba F.J., Zdanavicius K.
<Baltic Astron., 19, 63-94 (2010)>
=2010BaltA..19...63Z 2010BaltA..19...63Z
ADC_Keywords: Clusters, open ; Photometry, Vilnius
Keywords: stars: fundamental parameters -
Galaxy: open clusters: individual: IC361
Abstract:
CCD photometry in the eight-color Vilnius + I system for 7250 stars
down to I=19.6mag has been obtained in the 20'x26' field of the open
cluster IC361 in Camelopardalis. The catalog of 1420 stars down to
V∼18.5mag is presented. It contains the coordinates, V magnitudes,
seven color indices, quantitative photometric spectral types, absolute
magnitudes and distances. The interstellar extinction is found to be
non-uniform across the field, with the values of AV in the range 1.9
to 2.4mag. The distribution of distance moduli of individual stars
shows that the cluster is located as far as, or just beyond, the
Perseus spiral arm.
Description:
CCD observations in seven filters U,P,X,Y,Z,V,S of the Vilnius
system plus the filter I of the Cousins system were carried out in
December of 1999 with a 2K CCD camera on the 1m telescope of the
USNO Flagstaff Station (Arizona), which gives a field of the
diameter of 20'. Repeated observations in the Vilnius filters were
done with the same telescope and a new 2Kx2K CCD camera in March
of 2009. During the latter run we have obtained well-calibrated
CCD data only for filters Y, Z, V, S, since observations through
the remaining three filters on the succeeding night were curtailed by
cirrus clouds. Additional frames in the Vilnius filters U,Y,V were
taken for the central part of the field (12'x12') in December of 2008
with a 4K CCD camera on the 1.8m Vatican Advanced Technology Telescope
(VATT) on Mt. Graham (Arizona).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 99 1420 Results of photometry, photometric classification,
interstellar extinctions and distances for stars
in the IC 361 area
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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- 4 I4 --- Seq [1/1420] Sequential number
6 I1 h RAh Right ascension (J2000)
8- 9 I2 min RAm Right ascension (J2000)
11- 14 F4.1 s RAs Right ascension (J2000)
16 A1 --- DE- Declination sign (J2000)
17- 18 I2 deg DEd Declination (J2000)
20- 21 I2 arcmin DEm Declination (J2000)
23- 24 I2 arcsec DEs Declination (J2000)
26- 30 F5.2 mag Vmag Vilnius V magnitude
31- 32 A2 --- u_Vmag [: ] Uncertainty flag on Vmag
34- 37 F4.2 mag U-V ?=- Vilnius U-V colour index
38- 39 A2 --- u_U-V [: ] Uncertainty flag on U-V
41- 44 F4.2 mag P-V ?=- Vilnius P-V colour index
45- 46 A2 --- u_P-V [: ] Uncertainty flag on P-V
48- 51 F4.2 mag X-V ?=- Vilnius X-V colour index
52 A1 --- u_X-V [: ] Uncertainty flag on X-V
54- 57 F4.2 mag Y-V ?=- Vilnius Y-V colour index
58 A1 --- u_Y-V [: ] Uncertainty flag on Y-V
60- 63 F4.2 mag Z-V ?=- Vilnius Z-V colour index
64 A1 --- u_Z-V [: ] Uncertainty flag on Z-V
66- 69 F4.2 mag V-S ?=- Vilnius V-S colour index
70- 71 A2 --- u_V-S [: ] Uncertainty flag on V-S
73- 76 F4.2 mag V-I ?=- Vilnius V-I colour index
77 A1 --- u_V-I [: ] Uncertainty flag on V-I
79- 89 A11 --- SpType Photometric spectral type
91- 94 F4.2 mag AV [0/4.2]? Absorption in V band
96- 99 I4 pc Dist [156/9250]? Photometric distance
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 10-Mar-2015