OAG VISUAL DOUBLE STARS PROJECT
Garraf Astronomical Observatory (OAG)
Introduction
Garraf Astronomical Observatory (OAG, Barcelona-Catalunya/Spain) maintains severals observational and research projects in collaboration with other national and international organizations. Following their historical tradition in 1976, the OAG is a nonprofessional center dedicated to the study of visual double stars. Their results are presented in meetings and international publications (USNO, SAF, Webb Society) periodically from 1993. The OAG coordinated the practices totality of the observations and measurements of visual double stars made in Spain by nonprofessional observers between the years 1990 to 2003, carrying out one complete revision of the results obtained by J.L.Comellas in his 1973.0 and 1980.0 catalogues. The measurements of this extraordinary observer were incorporated for the first time to the international files (USNO/WDS Project) after their inclusion in OAG General Catalog of 10.000 Measures (J.2000,0) published in 2003. One complete revision of each pair was necessary, adapting it to the requirements of the international coordinations.
The OAG Visual Double Star Project has been developed throughout more than 30 years, period in which they have participated a little group of nonprofessional observers of Catalunya, Spain, France and Germany. To all of them our gratefulness by its collaboration (Observer's Table). The following table summarizes the main stages of this project between 1976 to 2007, and the new projects.
The OAG team are extremely grateful to Brian Mason and Bill Hartkopf and his colleagues at USNO for his accurate revision of measurements and the electronic publication ofthe OAG Catalog and OAG Supplements on the USNO/WDS web site, and to Dr.Bob Argyle (Greenwich Observatory) fir his support in the definitive compilation and publication of the OAG Supplements in The Webb Society Double Stars Section Circular.
OAG VISUAL DOUBLE STARS PROJECT 1976-2010 TABLE
| Period |
Contribution to/aims |
Sort of work |
|
|
Comellas's Visual Double Stars Catalogs J.L. Comellas 1973.0 (CC. 73) |
General observations Micrometric measures. |
| 1982 - 1992 |
J.L.
Comellas 1982.0 (CC.80) Coordination of spanish observers |
General observations and Micrometric measures. |
| 1992 – 2000 |
Preparation OAG General Catalog Publication of “RHO”
Visual Double Stars Circular (OAG 1992-1997) Coordination of spanish observers |
Creation
MAIA software |
| 2001 - 2002 |
Preparation OAG General Catalog |
USNO data revision Micrometric measures |
| 2003 - 2004 |
Publication of OAG General Catalog |
Data incorporation revised in WDS 2.000 Micrometric measures |
| 2005 |
Neglected Double Stars / USNO/ WDS Project Southern List 1 / Northern List 1 Publication of OAG Supplements nº1 – nº7 |
Measures on digitized Schmidt plates. Survey Anonymous <30" |
| 2006 |
Neglected Double Stars / USNO/ WDS Project Northern List 1 Publication of OAG Supplements nº8 – nº14 |
Measures on digitized Schmidt plates. Survey Anonymous <30" |
|
2007 |
Neglected Double Stars / USNO/ WDS Project Middle (Equatorial) List 1 Publication of OAG Supplements nº15 –nº19 |
Measures on digitized Schmidt plates. Survey Anonymous <30" |
|
2008 |
Neglected Double Stars / USNO/ WDS Project & Anonymous. GARRAF Survey:Search for companions to Luyten Stars. (Coord. J.Caballero / UCM ) Publication of OAG Supplements nº 20-nº21– |
Survey
Anonymous <30" Virtual Observatory / ALADIN |
2009 |
Neglected Double Stars / USNO/ WDS Project & Anonymous. OAG Survey for Common Proper Motion Wide Pairs Publication OAG Supplements nº22-23 AAS's XXI Meeting of Observers |
Survey Anonymous <30" Virtual Observatory / ALADIN
|
|
2010 |
Neglected Double Stars / USNO/ WDS Project & Anonymous. OAG Survey for Common Proper Motion Wide Pairs OAG-AAS's CPMWPS February - July 2010 Workshops Spanish National Astronomical Congress II International Meeting DSO / 23-24 october, Sabadell. Spanish Virtual Observatory Workshop 2010. November 2010. Barcelona. Publication OAG Supplements nº24-25 |
Survey Anonymous <30" Virtual Observatory / ALADIN
Presentation of CPMWPS Project
|
Revised: july 2011