Access to Astronomical Catalogues

Search catalogue
obsoleted
in preparation
catalog without ftp or VizieR link
V/28        Proper Motions, UBV Photometry, Four Open Clusters (Frolov 1980)

Proper Motions and UBV Photometry of Stars in the Region of Open Clusters NGC 7788, NGC 7790, Berkeley 58 and Anonymous Frolov V.N. <Pulkovo Obs. (1980)> =1977IzPul.195...80F =1979IzPul.196...69F
ADC_Keywords: Clusters, open ; Proper motions ; Photometry, UBV ; Regional catalog Abstract: Proper motions were determined for 2169 stars with limiting magnitude B = 16.5 mag and located within a 60x60' area centered at RA = 23h54.2min, Dec = 60deg57arcmin (1950.0). Three plate pairs with a mean epoch difference of 49 years were used. The first epoch plates were taken with the Tashkent normal astrograph during 1923-1925 and the second epoch plates with the Pulkovo normal astrograph. The proper motions have a mean error ±0.0030 arcsec (B < 14.5 mag) and ±0.0036 arcsec (B > 14.5 mag) and were measured relative to reference stars with 13.5 mag ≤ B ≤ 14.5 mag. Photographic UBV magnitudes were measured using Sandages photoelectric standards. The U, B and V magnitudes were determined for 1930, 2165 and 1734 stars respectively, with the corresponding mean errors ±0.03 mag, ±0.06 mag and ±0.05 mag. In the measured area there are three known open clusters (NGC 7788, NGC 7790 and Berkeley 58) and a previously unknown open cluster, discovered by the author, centered at RA =23 h 54.9 min, Dec = 61 deg 21 arcmin (1950.0). The cluster members were selected on the basis of the proper motion (vector diagram) and photometric (V ∼ B-V and U-B ∼ B-V) criteria. Stars within areas with 4 arcmin radii centered on NGC 7788 and NGC 7790 and 6 arcmin radii centered on Berkeley 58 and the anonymous cluster were investigated for cluster membership. The method of reduction of the observational data and the results obtained have been published in Izv. Pulkovo 195, 80, 1977 and 196, 69, 1979. Objects: --------------------------------------------- RA (2000) DE Designation(s) --------------------------------------------- 23 54.9 +61 21 C 2354+613 = Frolov 1 23 56.7 +61 24 C 2354+611 = NGC 7788 23 58.4 +61 13 C 2355+609 = NGC 7790 00 00.2 +60 58 C 2357+606 = Berkeley 58 --------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file adjarea.dat 58 2160 Photometry and Proper Motions Data
Byte-by-byte Description of file: adjarea.dat
Bytes Format Units Label Explanations
1- 4 I4 --- ID Star Number 6- 11 F6.2 mm X X-Coordinate 13- 18 F6.2 mm Y Y-Coordinate 20- 24 F5.2 mag V *? V Magnitude 26- 29 F4.2 mag B-V ? B-V color index 31- 35 F5.2 mag U-B ? U-B color index 37- 40 I4 10-4arcmin/a pmX X-annual proper motion 42- 46 I5 10-4arcmin/a pmY Y-annual proper motion 55- 58 I4 --- Cl_mem *Cluster Membership
Note on V: The following stars are known variables 327 - Cepheid CG Cas 693 - Algol Type Variable 893 - Double Cepheid CE Cas 903 - Cepheid CF Cas Note on Cl_mem: Cluster Membership Designation 7788 = member of NGC 7788 7790 = member of NGC 7790 58 = member of Berkeley 58 1 = member of anonymous cluster 0 = no designation
References: Frolov V.N. (1977) Izv. Pulkovo 195, 80. =1977IzPul.195...80F Frolov V.N. (1979) Izv. Pulkovo 196, 69. =1979IzPul.196...69F
(End) Julie Anne Watko [SSDOO/ADC] 30-MAY-1996
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact