ROMANIAN ASTRONOMICAL JOURNAL, Vol. 1, Nos 1-2, 1991
 

 

EDITORIAL

3
 
A. PAL

Spiru Haret’s Theorem

5
 
M. D. SURAN, Nedelia POPESCU, Gabriela OPRESCU

The Model of Two Points Correlation Functions for the Determination of the Large Scale Structure of the Universe (I)

13
 
Cristina Carmen POPESCU

Light Geodesics on Uniform Model Universes

25
 
I. TODORAN

Apsidal Motion in Double Stars with Pulsating Components

 33
 
M. D. SURAN

Pulsation Properties of a Delta Scuti Type Star with 2.3 Solar Masses

39
 
V. URECHE

A New Class of Barotropic Stellar Models. III. Equations for the Relativistic Approximation

51
 
V. POP

The Spectrophotometric Observations of Beta Cephei

57
 
Simona DINULESCU, V. DINULESCU

Flares Activity During Solar Cycle 21

 63
 
Irina PREDEANU

Quasibiennial Periodicity of Solar and Planetary Phenomena

69
 
Ludmila RUSU

Periodical Components in the Polar Motion of the Earth

81
 
Monica CIOBANU

Cas particulier dans le mouvement d’un corps deformable avec un point fixe. Le cas de la Terre

85
 
I. MIHAILA

La duree de l’annee tropique et l’unite fondamentale de temps

91
 
A. PAL, T. OPROIU

Determination of the Slopes of "Zero Relative Velocity" Curves from the Elliptic Restricted Three-Body Problem with an Averaging Method

97
 
V. MIOC, P. BLAGA

Orbital Motion with the Mucket-Treder Post-Newtonian Gravitational Law

103
 
Ana ALEXIU, G. BOCSA, M. STANESCU

Observations of Minor Planets in 1982-1985 at the Bucharest Astronomical Institute

109
 
Ana ALEXIU, G. BOCSA, M. STANESCU

Observations of Comet Halley in 1985-1986 at the Bucharest Astronomical Institute

113
 

MISCELLANEA
 

Astronomical Research in Romania

(Magda STAVINSCHI)

115
 
The Research Seminars of the Astronomical Observatory Cluj-Napoca

(A. PAL, V. URECHE)

116
 
Scientific Session

(Magda STAVINSCHI)

117
 
Gheorghe Bratu (1881-1941)

(A. PAL, V. MIOC)

118
 

BOOK REVIEWS

121