Jorge Silvio Francisco Landi Dessy, Argentine astronomer (Buenos Aires 01 September 1922 – 1991)

A relative of bacteriologist Silvio Dessy

DISCOVERED

Variable stars with a period shorter than one day in Magellanic Clouds (1952) independently of Thackeray

With Dartayet 25 new faint variable stars (1952) and 333 new SMC variables (1959)

With Laborde new variables in the Minor Cloud (Region f)

Found 277 new variables stars

New variables in the large Magellanic Cloud (1964)

Discovered 3 short-period variable stars in With M. Dartayet. Small Magelanic Cloud (1952)

Proposed a spectral classification of stars

Adaptation of the MK system to later spectra of medium dispersion with an intent of three-parametric classification (1966)

DEVICES

Proposed theories for preventing distinct optical aberrations in telescopes

Proposed a new type of kernel camera having only one optical surface

With R. Platzeck. La camara de Meinel telecêntrica. Bol. Asoc. Arg. Astron. 2 (1960)

With R. Platzeck. A new type of collimator for Meridian mark (1962)

Proposed a two-mirror aplanat with concave primary and flat secondary in An astrometrical aplanatic telescope with a figurated flat secondary mirror. Bol. Asoc. Arg. Astron. 14:18-28, 1968

New parametric tables for reflecting telescopes, for aplanats, anastigmats, flat-fielded, distortion free and third order errors free systems (1968) 

Un nuevo tipo de telescopio camara con tres espejos / A telescope camera with three mirrors. Publ. Astron. Soc. Pacific 75:66, 1963

A project of 40″ telescope applied to a high dispersion spectrograph (1964)

SOME BIBLIOGRAPHY

With M. Jaschek & C. Jaschek. An atlas of grating stellar spectra at intermediate dispersion (1977)

With José R. Laborde. The short period variable stars in the Magellanic Clouds. Astrophys. Space Science Library 23:47-9, 1971

With J.R. Laborde. 1107 variable stars in the Magellanic Clouds observed at Cordoba Obsevatory (1970)

With P.C. Keenan. Spectral types on the MK System for Forty Three bright Southern Stars, K2M6. Astrophys. J. 146:587, 1966

With P.C. Keenan. Variations in spectral type of the Mira variables R CEN and T CEN. Astrophys. J. 146:583, 1966

With A. Puch. A discussion of third order errors of reflecting telescopes. Mem. Soc. Astr. Ital. 37:657, 1966

A two minor aplanat with concave primary and flat secondary. Mem. Soc. Astr. Ital. 37, 1966

Distortion free aplanatic telescopes. Mem. Soc. Astr. Ital. 37, 1966

Some lesser known properties of Ritchey-Chretien telescopes. Mem. Soc. Astron. Ital. 34:415, 1963 

La binaria p Eridani (1949)

With J. Sahade. The radial velocities of CPD-63’896

With J. Sahade. La binaria espectroscopica Boss 4496

HONORS

Asteroid 2381 Landi