OAG VISUAL DOUBLE STARS PROJECT
Garraf Astronomical Observatory (OAG)


Introduction (CATALAN)

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. The following table summarizes the main stages of this project from 1976 to present, and the new projects like Neglected Visual Double Stars with UKIDSS images (REDVO) or OAG Common Proper Motion Wide Pairs Survey (CPMWPS).

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, and David Valls (Observatoire de París-CNRS) and J.A.Caballero and E.Solano (CSIC-INTA) for his professional and coordination support.

 

SUMMARY OAG VISUAL DOUBLE STARS PROJECT from 1976

Period

Contribution to/aims

Sort of work


1976-1982


Comellas's Visual Double Stars Catalogs

J.L. Comellas 1973.0 (CC. 73)
J.L. Comellas 1982.0 (CC.80)

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
Revision of CC.73 & CC.80
Data transcription 1970-2000
Micrometric measures

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 n1 n7

Measures on digitized POSS-I / POSS II plates.

Survey Anonymous <30"

2006

Neglected Double Stars / USNO/ WDS Project

Northern List 1

Publication of OAG Supplements n8 n14

Measures on digitized POSS-I / POSS II plates.

Survey Anonymous <30"

 

2007

Neglected Double Stars / USNO/ WDS Project

Middle (Equatorial) List 1

Publication of OAG Supplements n15 nº19

Measures on digitized POSS-I / POSS II 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 n 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 XXI Meeting of Observers

Survey Anonymous <30"

Virtual Observatory / ALADIN
(Tutorial 1.0)

CPMWP Survey


Presentation of CPMWPS Project to spanish observers and publication of Tutorials 1.0

 

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
September 2010. Madrid.

II International Meeting DSO / 23-24 october, Sabadell.

Spanish Virtual Observatory Workshop 2010. November 2010. Barcelona.

Pro-Am team formation for astrophysical analysis of GWP Catalog

Survey Anonymous <30"

Virtual Observatory / ALADIN


Coordination of teams and metodology

Presentation of CPMWPS Project


Full presentations in OAG web site


New applications to ALADIN

(Tutorial 2.0)

2011

E.Vidal Abascal method for binary orbital calculation with Geogebra software: Núria Miret's High School Project. (January).

Publication OAG Supplements nº24-25

Publication OAG Supplements nº26

AAS XXII Meeting of Observers
November

Development

 

CPMWP Survey

Neglected Double Stars

Presentation of CPMWPS Project


Presentation of Negflecteds-SVO Project

2012

Publication GWP Catalog Part I
(OAG Supplement nº27)

E.Vidal Abascal method for binary orbital calculation with Geogebra software: Núria Miret's High School Project (june-october)

 

 


REDVO SVO+OAG Project

 

International Meeting CAPAS 2012 (Rodez, France). September.

OAG Survey for Common Proper Motion Wide Pairs

IV OAG CPMWP SURVEY Workshop. Fabra Observatory. December.

Spanish National Astronomical Congress
December 2012. Gandía.

Add to WDS/USNO Catalog


First Award Argó (Universitat Autònoma de Barcelona). Science Modality.

First Award Science in Action (Public and private centers in science research).


Neglected Double Stars with UKIDSS PLATES / ALADIN


Update OAG CPMWP Survey and presentation GWP Catalog Part I

New ALADIN applications
(Preparation of Tutorial 3.0/2013)

Coordination and presentation of new ALADIN aplication

Presentation of REDVO Project with UKIDSS plates.

J.L.Comellas (CLL) 1 / 2 / 3 / 4/

 

 

 


Revised: december 2012