the félix aguilar and yale southern observatories
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The Félix Aguilar and Yale Southern Observatories. A Historical Travelogue. Carlos E. López Félix Aguilar Observatory and Yale Southern Observatory San Juan, Argentina. Historical Background. 1718: Halley announces the proper motion of the stars. - PowerPoint PPT PresentationTRANSCRIPT
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The Félix Aguilar and Yale The Félix Aguilar and Yale Southern ObservatoriesSouthern Observatories
A Historical TravelogueA Historical Travelogue
Carlos E. LópezCarlos E. LópezFélix Aguilar Observatory and Félix Aguilar Observatory and
Yale Southern ObservatoryYale Southern ObservatorySan Juan, ArgentinaSan Juan, Argentina
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Historical Background.Historical Background.
1718: Halley announces the proper motion of the stars.1718: Halley announces the proper motion of the stars.
1775: Mayer publishes the first proper motions catalogue. 1775: Mayer publishes the first proper motions catalogue.
1783: Herschel suggests the idea of solar motion.1783: Herschel suggests the idea of solar motion.
1887: the Astrographic Catalogue is started.1887: the Astrographic Catalogue is started.
1916: Barnard discovers his famous star.1916: Barnard discovers his famous star.
1926: Schlesinger starts the Yale Zones.1926: Schlesinger starts the Yale Zones.
1947: Wright starts the NPM.1947: Wright starts the NPM.
1950: Luyten starts to survey both hemispheres for high proper 1950: Luyten starts to survey both hemispheres for high proper
motion stars. motion stars.
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Historical Background Historical Background (cont’d)(cont’d)
1952: the IAU suggests to extend the NPM to the south.1952: the IAU suggests to extend the NPM to the south.
1953: the Yale – Columbia association is established.1953: the Yale – Columbia association is established.
1953: dedication of the Félix Aguilar Observatory.1953: dedication of the Félix Aguilar Observatory.
1960: Giclas starts his survey.1960: Giclas starts his survey.
1965: March 31st dedication of the Yale – Columbia Southern 1965: March 31st dedication of the Yale – Columbia Southern
Observatory (YCSO). The SPM is started.Observatory (YCSO). The SPM is started.
1968: the USNO starts the operation of a Meridian Circle at the 1968: the USNO starts the operation of a Meridian Circle at the
YCSO.YCSO.
1973: Columbia University abandoned the project.1973: Columbia University abandoned the project.
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Historical Background Historical Background (cont’d)(cont’d)
1974: San Juan University is invited to take part in the SPM 1974: San Juan University is invited to take part in the SPM
program.program.
1974: Bill van Altena joins the Yale Astronomy Department.1974: Bill van Altena joins the Yale Astronomy Department.
1974: the USNO finishes the observations and the Meridian Circle 1974: the USNO finishes the observations and the Meridian Circle
returns to the US.returns to the US.
1974: the first epoch of the SPM is officially finished.1974: the first epoch of the SPM is officially finished.
1987: Carlos U. Cesco passed away.1987: Carlos U. Cesco passed away.
1987: the second epoch of the SPM is started.1987: the second epoch of the SPM is started.
1989: ESA launches the Hipparcos satellite.1989: ESA launches the Hipparcos satellite.
1990: NASA launches the HST.1990: NASA launches the HST.
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1995: the fourth edition of the Yale Trigonometric Parallaxes 1995: the fourth edition of the Yale Trigonometric Parallaxes Catalogue is published.Catalogue is published.
1998: the SPM 1 is published.1998: the SPM 1 is published. 2000: Monet announces the USNO B.2000: Monet announces the USNO B. 2000: the Double Astrograph photographic plates are replaced by 2000: the Double Astrograph photographic plates are replaced by
new CCDs. new CCDs. 2004: the SPM 3 is published (near 11 million stars).2004: the SPM 3 is published (near 11 million stars). 2007: January 1st. Bill’s formal retirement.2007: January 1st. Bill’s formal retirement.
Historical Background (cont’d)Historical Background (cont’d)
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……and last, and more important…and last, and more important…
1939: Bill van Altena was born.1939: Bill van Altena was born.
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OAFA’s constructionOAFA’s construction
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José A. López and Miguel Marzo inspecting the
construction (March 1953)
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Social gathering (asado, of course) during OAFA’s construction
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Félix Aguilar Observatory (OAFA) was dedicated on September 28th, 1953
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OAFA, March 2008
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OAFA’s first director was Dr. Carlos U. Cesco
Dr. Cesco
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Eng. Félix Aguilar1884 - 1943
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E. Mannucci
C. Cesco
B. Dawson
Observing a solar eclipse (early 1955)
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J. Nissen
S. Climens
W. Manrique
E. Patiño
E. Mannucci
J. López
C. Cesco
Probablemente mediados de 1965The first OAFA’s Meridian Circle team (mid 1962)
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OAFA’s Meridian Circle team (by the end of 1988)
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Meridian Circle
Satellite Laser
Ranging
Main Building
La Plata Warehouse
OAFA’s site (Google Earth’s view)
N
Costan
era
Ave.
Benavídez Ave.
Guests House
Astrolabe PA II
San Juan River
YSO house
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J. Schilt F. ScottD. BrouwerG. Clemence
C. CescoJ. López
Astrometry meeting at La Plata Observatory, by the end of 1959
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Los Colorados
El Leoncito
Search Areas for the YCSO
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Left to right: D. Brouwer, C. Cesco, J. Schilt, J. Sanguin, and G. Sánchez(Los Colorados, early 1960)
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Left to right: G. Sánchez and J. Sanguin(Los Colorados, mid 1960)
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C. Cesco
D. BrouwerJ. López
Celebrating the construction of YCSO (by the end of 1962)
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G. Sánchez and J. Sanguin(El Leoncito, late 1960)
G. Sánchez, L. Cabrera, G. Sánchez and F. Muñoz
(El Leoncito, late 1960)
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D. Brouwer, C. Cesco and the Rector of Universidad de Cuyo, after signing the first agreement between YCSO and Argentina.
Mendoza, 1962.
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31 de marzo de 1965
A. Rodríguez y Olmos L. BravoD. Brouwer
The YCSO dedication day: March 31st, 1965
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The YCSO dedication day: March 31st, 1965
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Dedication day expenses
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Dedication day expenses (cont’d)
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Dedication day expenses (cont’d)
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Bill van Altena, Terry Girard, and Arnold Klemola. Giant leap: from photographic plates to CCD. El Leoncito, 2000.
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The Double Astrograph today
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YSO, entrance gate. August 2008.
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Dr. Carlos U. Cesco Station(Yale Southern Observatory)
Double AstrographMeridian
Circle
Solar Telescopes
Residence, library, workshop and warehouse area
Reflector
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Warehouse
Power House
Residence
Library
Meridian Circle
Solar Telescopes
Double Astrograph
Reflector Telescope
N
W
Yale Southern Observatory (Google Earth’s view)
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The SPM current status
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… … and finally…and finally…
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Halley’s comet. The comet Bill never saw, although he had the chance…(he was busy doing something else)
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Bill and Alicia dancing at the closing dinner of ADeLA meeting (Mexico, DF, 2008)