Access to Astronomical Catalogues

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
    =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:
    -------------------------------------------
       RA   (2000)   DE        Designation(s)
    -------------------------------------------
    20 11 56.06  +20 20 04.4   FG Sge
    -------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

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        97       14   A log of spectroscopic observations for FG Sge
                             in 1999-2002
table4.dat        35       26   NaI D line equivalent widths and C2 indices


Byte-by-byte Description of file: table1.dat

   Bytes Format  Units   Label   Explanations

   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


Byte-by-byte Description of file: table2.dat

   Bytes Format  Units   Label   Explanations

   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


Byte-by-byte Description of file: table3.dat

   Bytes Format Units      Label     Explanations

   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


Byte-by-byte Description of file: table4.dat

   Bytes Format Units        Label     Explanations

   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        ? C_2_ index, as defined by Iijima,
                                          1996MNRAS.283..141I (1)
  31- 35  F5.2  ---          C2Index   ? C_2_ index, as defined by Fay et al.,
                                          1974AJ.....79..634F (2)

Note (1): C2 = 1.0-2.0I(4700)/[I(4600)+I(4800)]

Note (2): C2 index =  2.5 log(Fν(5610)/Fν(5710))


(End)                  Veta Avedisova (INASAN)                       16-Mar-2004