Photometry and Proper Motions in M67 Virtual Observatory Resource

Authors
  1. Frolov V.N.
  2. Ananyevskaya J.K.
  3. Published by
    CDS
Abstract

Relative proper motions were determined for 1068 stars with limiting magnitude b=16.5 and located within an area 130'*130' centered at alpha=8h 47.7m,delta=+12 deg.00' and l=215.6deg.,b=+31.2deg.(1950.0). Five plate pairs taken with the Pulkovo normal astrograph with mean epoch difference of 62 years were used. The proper motions have a mean error of 0''.0020 per year and were measured relative to reference stars with 13.5<b<14.5. Photographic UBV magnitudes were determined using the photoelectric standards of Johnson, Sandage (1955ApJ...121..616J) and Eggen, Sandage (1964ApJ...140..130E). Three plates in each colour taken with the Schmidt telescope of the Radioastrophysical Observatory of the Latvian SSR were measured. In addition a plate taken with the Pulkovo 26inch telescope was used to determine v-magnitudes. The cluster members were selected on the basis of proper motion (vector point diagram) and photometric (V/B-V and U-B/B-V) criteria.

Keywords
  1. Open star clusters
  2. Proper motions
  3. Optical astronomy
  4. Wide-band photometry
Bibliographic source
Moscow, (1986)
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History

2002-12-31T15:21:11Z
Resource record created
2002-12-31T14:21:35Z
Updated
2002-12-31T15:21:11Z
Created

Contact

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CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
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