J/PAZh/29/858 FG Sagittae: new observations (Arkhipova+, 2003)
FG Sagittae: new observations in the R CrB photometric phase
Arkhipova V.P., Ikonnikova N.P., Komissarova G.V., Noskova R.I.,
Shugarov S.Yu., Esipov V.F.
<Pis'ma Astron. Zh. 29, 858 (2003)>
=2003PAZh...29..858A 2003PAZh...29..858A
=2003AstL...29..763A 2003AstL...29..763A
ADC_Keywords: Stars, variable ; Photometry ; Spectroscopy
Abstract:
In 1999-2002 the BVRI photometric and spectroscopic observations of FG
Sge were made. The star has been in a new R CrB photometric phase since
1992.
Object:
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RA (2000) DE Designation(s)
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20 11 56.06 +20 20 04.4 FG Sge
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 44 96 Photoelectric observations of FG Sge in 1999-2000
table2.dat 61 81 Photometric observations of FG Sge in 1999-2000
table3.dat 96 14 A log of spectroscopic observations for FG Sge
in 1999-2002
table4.dat 35 26 NaI D line equivalent widths and C2 indices
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 I7 d JD [2451336/2452460] Julian date
10- 14 F5.2 mag Vmag v magnitude
17- 21 F5.2 mag Bmag ? B magnitude
24- 28 F5.2 mag umag ? u magnitude
31- 34 F4.2 mag B-V ? B-V color
37- 40 F4.2 mag U-B ? U-B color
43- 44 I2 arcsec Ap Photometer aperture
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 7 I7 d JD [2451302/2452551] Julian date
10- 14 F5.2 mag Bmag ? B magnitude
17- 21 F5.2 mag Vmag ? V magnitude
24- 27 F4.2 mag B-V ? B-V color
30- 34 F5.2 mag Rmag ? R magnitude
37- 40 F4.2 mag B-R ? B-R color
43- 47 F5.2 mag Imag ? I magnitude
51- 54 F4.2 mag V-I ? V-I color
58- 61 A4 --- Note Type of CCD array
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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- 10 A10 "DD/MM/YYYY" Date Observation date
12- 15 I4 0.1nm lambda1 Lower limit of spectral range
16 A1 --- --- [-]
17- 20 I4 0.1nm lambda2 Upper limit of spectral range
22- 26 F5.2 mag Vmag V magnitude
28- 97 A70 --- Feat Spectral features
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 10 A10 "DD/MM/YYYY" Date Observation date
13- 17 F5.1 0.1nm W(NaI) NaI D line equivalent width
18 A1 --- u_W(NaI) Uncertainty flag on W(NaI)
22- 26 F5.2 --- C2 ? C2 index, as defined by Iijima,
1996MNRAS.283..141I 1996MNRAS.283..141I (1)
31- 35 F5.2 --- C2Index ? C2 index, as defined by Fay et al.,
1974AJ.....79..634F 1974AJ.....79..634F (2)
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Note (1): C2 = 1.0-2.0I(4700)/[I(4600)+I(4800)]
Note (2): C2 index = 2.5 log(Fν(5610)/Fν(5710))
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(End) Veta Avedisova (INASAN) 16-Mar-2004