II/320 Variable stars in the M16-M17 field (Maffei+ 1999)
Variable stars in the M16-M17 field: list, finding charts and
Atlas of 176 Mira/SR light curves
Maffei P., Tosti G.
<Perugia University Observatory (1999) >
=2013yCat.2320....0M 2013yCat.2320....0M
ADC_Keywords: Stars, variable ; Clusters, open ; Photometry, photographic
Description:
The original work was published as a paper book by the Perugia
University in 1999. Before that, only the variable stars list
(coordinates, classifications, periods, epochs, magnitude ranges)
was published (P. Maffei, 1975IBVS..985....1M 1975IBVS..985....1M)
The photographic material was discontinuously collected with the two
Schmidt telescopes of the Asiago Observatory and with the Schmidt
telescope of the Catania Astrophysical Observatory in the years 1961
to 1991. 103a-O without or with filter GG13 and hypersensitized with
NH3 or pre-flashed I-N+RG5 were used. Date, JD, exposure time,
emulsion/filter combination and the observer for each plate are listed
in Table 1 and Table 2. The variable search was carried out with the
blink microscope plate comparator of the Asiago Observatory.
Details about the history and the reduction of the observational
material are given in the "main.htm" file; the digitization was made
by Alessandro Nesci.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
main.htm 958 125 The electronic paper (copy of the original atlas)
table1.dat 50 128 List of the blue plates
table2.dat 50 149 List of the infrared plates
table3.dat 88 210 Principal elements of the variables
in the field of M16-M17
charts/* . 10 Finding charts
graphs/* . 189 Images of the light curves
tables/* . 3 Original tables
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See also:
B/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2013)
http://astrowww.phys.uniroma1.it/nesci/MIRA/All/main.htm : Original atlas
Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1 A1 --- Tel [12CJI] Telescope used (1)
3- 7 I5 --- ID Plate ID
9- 18 A10 "YYYY.MM.DD" Date Observation date
20- 29 F10.4 d JD Observation date (JD-2400000)
31- 32 I2 min texp Exposure time
34- 45 A12 --- Em/Filter Plate, emulsion and filter
47- 50 A4 --- Obs Observer code (2)
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Note (1): The following telescope codes are used:
1 = Asiago Astrophysical observatory- Schmidt 50/40
2 = Asiago Astrophysical observatory- Schmidt 90/65
C = Catania Astrophysical observatory- Schmidt 61/41
J = UKSTU blue plate
I = UKSTU infra-red plate
Note (2): Observers are abbreviated as follows:
B = Assia Blaghikh
Br = Roberto Burchi
C = Salvatore Cristaldi
F = Aldo Frigo
M = Paolo Maffei
Mt = Aldo Martini
N = Giuliano Natali
P = Valerio Pertile
R = Lucio Rossi
IR = Italo Rigoni;
S = Antonello Satta
Sc = Vincenzo Stancanelli
T = Luciano Traverso
V = Roberto Viotti
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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 A1 --- --- [M]
2- 4 I03 --- Seq [1/208]? (empty for previously known stars)
9- 17 A9 --- Name Variable star name
25- 26 I2 h RAh ? Right Ascension B1950 (hours)
28- 29 I2 min RAm ? Right Ascension B1950 (minutes)
31- 32 I2 s RAs ? Right Ascension B1950 (seconds)
34 A1 --- DE- ? Declination B1950 (sign)
35- 36 I2 deg DEd ? Declination B1950 (degrees)
38- 41 F4.1 arcmin DEm ? Declination B1950 (minutes)
45 A1 --- f_bmax [B] specifies that bmax and bmin
are also observed in B-band
46- 50 F5.2 mag bmax ? I-band magnitude at maximum brightness
53 A1 --- l_bmin [<] indicates bmin is a lower value of magnitude
54- 58 F5.2 mag bmin ? I-band magnitude at minimum brightness
62- 66 A5 --- Vt Variable type (includes : for uncertain values)
70- 74 F5.1 d Per ? Period
75- 76 A2 --- u_Per [: ] Uncertainty flag on Per
78- 82 I5 d T0 ? Epoch of maximum brightness (JD-2400000)
83- 84 A2 --- u_T0 [: ] Uncertainty flag on T0
86- 88 I3 --- Nobs ? Number of observations
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History:
* 02-Jul-2013: Copied from http://astrowww.phys.uniroma1.it/nesci/MIRA/All/
* 30-Sep-2013: two incorrect names have been corrected, in the
table3 and the light curves:
- M023 corrected from V3954 into V3945 Sgr
- M113 corrected from NSV 10732 into NSV 10752 (=V5536 Sgr)
* 18-Nov-2013: the positions of V3917 Sgr (=V404 Ser) and HH Ser
were corrected (from Prof. Roberto Nesci)
Acknowledgements:
The material was kindly supplied by Roberto Nesci;
the digitization was made by Alessandro Nesci.
(End) Francois Ochsenbein [CDS] 02-Jul-2013