Access to Astronomical Catalogues

J/AJ/137/5086      NGC 188 V12 VI light curves               (Meibom+, 2009)
Age and distance for the old open cluster NGC 188 from the eclipsing binary
member V12.
    Meibom S., Grundahl F., Clausen J.V., Mathieu R.D., Frandsen S.,
    Pigulski A., Narwid A., Steslicki M., Lefever K.
   <Astron. J., 137, 5086-5098 (2009)>
   =2009AJ....137.5086M
ADC_Keywords: Clusters, open ; Binaries, eclipsing ; Photometry

Keywords: binaries: eclipsing - binaries: spectroscopic -
          open clusters and associations: general -
          open clusters and associations: individual (NGC 188) -
          stars: evolution - techniques: photometric - techniques: spectroscopic

Abstract:
    We present time series radial velocity, and photometric observations
    of a solar-type double-lined eclipsing binary star (V12) in the old
    open cluster NGC 188. We use these data to determine the spectroscopic
    orbit and the photometric elements for V12.

Description:
    A detailed description of the spectroscopic observations and radial
    velocity measurements of stars in NGC 188 can be found in Geller et
    al. (2008, Cat. J/AJ/135/2264). The spectroscopic observations of V12
    were acquired from 1996 September to 2001 July with the WIYN telescope
    and the Hydra multiobject spectrograph in a single 250Å wide
    echelle order centered on 5130Å and with a resolution of ∼20000.
Objects:
    -----------------------------------------------------------
       RA   (2000)   DE      Designation(s)
    -----------------------------------------------------------
    00 52 37.5   +85 10 35   Cl* NGC 188 KS V12 = V* V785 Cep
    -----------------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table10.dat       36      383   I band photometry
table11.dat       36      379   V band photometry


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

   Bytes Format Units   Label     Explanations

   1- 16  F16.8 d       HJD       Heliocentric Julian Date of observation
  18- 24  F7.4  mag     mag       I (table10) or V (table11) magnitude
  26- 36  A11   ---     Code      Telescope/Instrument code (1)

Note (1): Telescope/Instrument code:
      StanCam = 2.56m Nordic Optical telescope with StanCam
  ALFOSC-FASU = 2.56m Nordic Optical telescope with  ALFOSC-FASU
     MERCATOR = 1.2m Flemish Mercator telescope
      BIALKOW = 0.6m telescope at Bialkow Observatory


History:
    From electronic version of the journal
(End)                  Greg Schwarz [AAS], Patricia Vannier [CDS]    08-Nov-2011