II INTERNATIONAL MEETING OF DOUBLE STAR OBSERVERS (Pro-Am)
23th – 24th, OCTOBER 2010, Sabadell (Barcelona, Spain)

www.oagarraf.net - www.astrosabadell.org

Full original presentations submitted and autorished by authors

Special communications

• Current Statistics on Visual Double Stars. Brian D.Mason U.S. Naval Observatory. Vice President, IAU Commission 26 (Presented by Bob Argyle,President of the Webb Society, UK ).

• Lunar occultations: double stars predictions & observations. Dave Herald. Author of Occult software (Occultation Timing Association, Inc IOTA) (Videoconferencing from Australia with Skype)

Lectures and communications acorded to program

•  The History of the Webb Society Double Star Section. Bob Argyle (President of the Webb Society, UK) .
• Trente années d'activité de la Commission des étoiles doubles de la Société Astronomique de France. Edgar Soulié (President of the Commission Etoiles Doubles- SAF)
• The History of AAS Double Star Section: 1975-2010. Josep M. Oliver (AAS, Spain)
• The OAG Visual Double Stars Project: 1985-2010. Tòfol Tobal (OAG, Spain)
• The distance of the Pleiades today: A Pro-Am collaboration. David Valls (CNRS, Observatoire de París, SAF, France)  
• Radial Velocity. J.Louis Agati (SAF, France)
•  How to measure the eclipsing binaries minimum. Laurent Corp (AFOEV-AAVSO, France)
•  Double star occultations by the Moon. Carles Schnabel (AAS, Spain)
•  Re-observation of Muller Double Stars. Provisional results. Pierre Durand (SAF, France) 
• Visual double star observations from Fabra Observatory. Antonio Bernal.( Observatori Fabra, Spain)
•  Mathematical aspects of calculation orbits in long period visual systems. Rafael Hernández (UPM, Spain)
• OAG Common Proper Motions Wide Pairs Survey. Xavier Miret and Tòfol Tobal (OAG, Spain)
• Proper-motion companions to nearby young stars in the Local Association. Francisco J. Alonso-Floriano (UCM, Spain)
• Image Reduction Methods and their influence on the Theta/Rho measures. Ignacio Novalbos (Grupo Hubble, Spain).
• Astrophysical interest of proper motion wide pairs. David Valls (CNRS, Observatoire de París, SAF, France)
• Interferometry with mid-sized amateur telescope: why not?. Florent Losse (SAF, France)
• Introduction to REDUC software . Florent Losse (SAF, France)
• Binary systems: from 0”2 to 2º. José A. Caballero (CAB, CSIC, Spain)

Other papers

• The magnetically-active, low-mass, triple system WDS 19312+3607.
  (A&A Research Note 520, A91,2010). J. A. Caballero, D. Montes, A. Klutsch, J. Genebriera, F. X. Miret, T. Tobal, J. Cairol, and S. Pedraz
• The common proper motion wide pair WT 2220/WT2221.Francisco Rica. (S.A.Mérida, LIADA. Spain)
• The SEDA-WDS Project. Rafael Benavides, Juan L. González, Edgard R. Masa (SEDA Project, Spain)
• The II Meeting DSO 2010 chronicle (spanish). J.Mª.Oliver . J.Mª Oliver (AAS, Spain)
• Càcul orbital: aplicació Geogebra del mètode de raons dobles d' E.Vidal Abascal , Núria Miret (OAG, Spain)

1- C.Schnabel, 2- D.Montes, 3- R.Hernández. 4- J.Alonso, 5- J.A.Caballero, 6- T.Galera, . 7- X.Miret, 8- E.Souilé, 9-F.Losse, 10-Mme Mat, 11-D.Valls, 12-B.Argyle, 13-I.Novalbos, 14-J.MªOliver, 15- A.Ardanuy, 16- N.Miret, 17-P.Durand, 18-J.L.Agati, 19-T.Tobal, 20-L.Corp, 21-A.Bernal.

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revised, december 2010