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J/BaltA/18/33      Photometry of stars around NGC 7023      (Zdanavicius+, 2009)

Photometry and classification of stars around the reflection nebula NGC7023 in Cepheus. II. Interstellar extinction and cloud distances. Zdanavicius K., Zdanavicius J., Straizys V., Maskoliunas M. <Baltic Astron., 18, 33-52 (2009)> =2009BaltA..18...33Z
ADC_Keywords: Molecular clouds ; Magnitudes ; Spectral types Keywords: stars: fundamental parameters, classification - Galaxy: Cepheus Flare, NGC 7023 - ISM: extinction, clouds: individual (TGU629) Abstract: Interstellar extinction is investigated in a 1.5 square degree area in the direction of the reflection nebula NGC7023 at l=104.1°, b=+14.2°. The study is based on photometric classification and the determination of interstellar extinctions and distances of 480 stars down to V=16.5mag from photometry in the Vilnius seven-color system published in Paper I (2008BaltA..17..161Z). The investigated area is divided into five smaller subareas with slightly different dependence of the extinction on distance. The distribution of reddened stars is in accordance with the presence of two dust clouds at 282pc and 715pc, however in some directions the dust distribution can be continuous or more clouds can be present. Objects: ------------------------------------------------- RA (2000) DE Designation(s) ------------------------------------------------- 21 01 36.9 +68 09 48 NGC 7023 = C 2059+679 ------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 44 480 Stars in the investigated area with most reliable spectral-types determined from Vilnius photometry
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 I4 --- [ZZS2008] Sequential number 6- 10 F5.2 mag Vmag Vilnius V magnitude 12- 19 A8 --- SpType MK spectral type 22- 24 F3.1 --- e_SpType Accuracy estimates of spectral types 26- 30 F5.2 mag VMAG Absolute V magnitude 32- 35 F4.2 mag AV Absorption in V band 37- 40 I4 pc Dist Heliocentric distance 42- 44 A3 --- SubArea SubArea number I to V (central part), used in Fig.2
History: From electronic version of the journal References: Zdanavicius et al., Paper I 2008BaltA..17..161Z
(End) Patricia Vannier [CDS] 15-Aug-2009
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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