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J/A+A/323/113 YY Her photometric history over 1890-1996 (Munari+ 1997)
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The symbiotic star YY Her. I. Photometric history over 1890-1996.
Munari U., Rejkuba M., Hazen M., Mattei J., Schweitzer E., Luthardt R.,
Shugarov S., Yudin B.F., Popova A.A., Chugainov P. V., Sostero G.,
Lepardo A.
<Astron. Astrophys. 323, 113 (1997)>
=1997A&A...323..113M (SIMBAD/NED BibCode)
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ADC_Keywords: Photometry ; Stars, variable
Keywords: symbiotic binaries - Individual stars: YY Her
Description:
Table 5 presents AAVSO and AFOEV amateur astronomer's data
combined into 30-day bins. <JD> is the mean JD of the bin, <m-vis> is
the mean of N visual estimates after correction for systematic offsets
(two decimal figures only for N>=2); sigma(<m-vis>) is the error of
the mean. Table 6 lists photographic m(pg) magnitudes of YY Her.
The various sources of data and instruments are given for each
magnitude. The upper limits are flagged by >, while the uncertain
values have the : or :: flag.
Objects:
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RA (2000.0) DE Name(s)
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18 14 34 +20 59 12 YY Her = AS 297 = MH-alpha 352-34
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5 27 238 visual photometry
table6 32 618 photographic m(pg) photometry
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Byte-per-byte Description of file: table5
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Bytes format Units Label Explanations
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1- 3 I3 --- bin [1/238] Progressive bin number
5- 11 I7 d <JD> [2440395/2450205] Julian date
13- 17 F5.2 mag <m-vis> Mean visual magnitude
19- 21 I3 --- n_<m-vis> Number of visual estimates in the bin
23- 26 F4.2 mag e_<m-vis> ? Error of the mean visual magnitude
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Byte-per-byte Description of file: table6
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Bytes format Units Label Explanations
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1- 10 A10 --- Source *Source of the data
12- 13 A2 --- Instr. *Instrument
15- 24 F10.2 d JD [2411508/2442219] Julian date
26 A1 --- l_mpg Limit flag on mpg
27- 30 F4.1 mag mpg Photographic m(pg) magnitude
31- 32 A2 --- u_mpg [ :] Uncertain flag on mpg
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Note on Source:
Harvard = Harvard plate archive
Crimea = Crimea plate archive
Carte d.C. = Carte du Ciel atlas
POSS = Palomar atlas
Sonneberg = Sonneberg plate archive
Note on Instr.:
H1 = 20 cm Draper refractor
H2 = 20 cm refractor
H3 = 40 cm Metcalf refractor
H4 = 25 cm Metcalf refractor
H5 = recent patrol series
H6 = recent 4 cm patrol series
H7 = very wide angle 4 cm patrol series
PS = Palomar Schmidt telescope
CC = Carte du Ciel (Paris zone)
C1 = 9.6/64 cm refractor
C2 = 16/82 cm refractor
C3 = 40/160 cm refractor
S1 = Tessar camera, 1:4.5, f= 250 mm
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Acknowledgements: Marina Rejkuba <rejkuba@astras.pd.astro.it>
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(End) Patricia Bauer [CDS] 26-Feb-1997