Access to Astronomical Catalogues

← Click to display the menu
VII/106      Open Cluster Interstellar Matter Database   (Leisawitz 1988)

Open Cluster Interstellar Matter (OCISM) Database Leisawitz D.T. <NASA Ref. Publ. 1202 (1988)> =1988NASAR1202....1L
ADC_Keywords: Clusters, open ; Interstellar medium Description: This catalog is a compilation of the characteristics of 128 open clusters and the interstellar medium associated with them. It is distributed as the "OCISM Database" which is the set of data files, processing and analysis software written in FORTRAN, and the supporting documentation. As provided by the author, the data are in a multi-record format which is best accessed with the author's software. The clusters in this database have been relatively well-studied, have declinations greater than -20 deg., are between 1 and 5 kpc distant, and are younger than 100 million years old. Characteristics compiled for these clusters include cluster identification, spatial coordinates, radial velocities (of stellar clusters, H II regions, and molecular clouds), proper motions, distance, angular diameter, linear diameter, age, mass (based on stellar and atomic gas, ionized gas, molecular clouds, and dust determinations), visual extinction, and reddening. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file ocdb_doc.txt 83 876 Author's description of OCISM database clusters.dat 72 128 List of clusters (extracted from ocdb_doc.txt) ocism.lis 132 9602 Data by cluster as viewable pages ocdb.ref 100 620 Coded list of references ocdb.rec 132 2754 Input data file for OCISM FORTRAN software ocdbmain.for 80 2658 FORTRAN-77 source code for OCISM database
See also: VII/92 : Open Cluster Data 5th Edition (Lynga 1987) Byte-by-byte Description of file: clusters.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Running number 6- 10 F5.1 --- OCl ? Alter & Ruprecht number 13- 18 F6.2 deg GLON Galactic longitude of cluster 20- 25 F6.2 deg GLAT Galactic latitude of cluster 28- 37 A10 --- Name Common name of cluster 40- 51 A12 --- Alias Other names 53- 60 A8 --- Assoc OB Association name of which the cluster is member 65- 67 I3 --- Sh ? Sharpless identification of HII regions ionized by the cluster 70- 72 A3 --- W ? Westerhout identifications of HII regions ionized by the cluster
History: * 19-Oct-1998: ReadMe prepared by James E. Gass [SSDOO/ADC] * 03-Aug-2004: added file clusters.dat (Francois Ochsenbein, CDS)
(End) James E. Gass [SSDOO/ADC], Francois Ochsenbein [CDS] 03-Aug-2004
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

© Université de Strasbourg/CNRS

    • Contact