Inertial coordinate system on the sky : proceedings of the 141st Symposium of the International Astronomical Union, held in Leningrad, USSR, 17-21 October 1989

목차 (Table of Contents)

• CONTENTS
• PREFACE = xv
• SCIENTIFIC AND LOCAL ORGANIZING OMMITTEES = xvi
• LIST OF PARTICIPANTS = xvii
• RESOOUTIONS ADOPTED = xxxiii
• Part 1 The legacy of Pulkovo for inertial systems and reference frames
• INTRODUCTORY REMARKS / J.H. Lieske = 3
• CONCLUDING REMARKS / G. Westerhout = 5
• THE LEGAY OF THE STRUVES FOR THE ESTABLISHMENT OF AN INERTIAL OORDINATE SYSTEM ON THE SKY / A.H. Batten = 7
• PULKOVO OBSERVATORY'S STATUS IN 19TH ENTURY POSITIONAL ASTRONOMY / K. Krisciunas = 15
• THE LONGEST GEODETI ARC : DELISLE, THE STRUVES AND PULKOVO OBSERVATORY / S. D$$e'$$barbat = 25
• PULKOVO OBSERVATORY AND THE NATIONAL OBSERVATORY MOVEMENT : AN HISTORIAL OVERVIEW / S.J. Dick = 29
• THE PAST, PRESENT AND FUTURE OF REFERENCE SYSTEMS FOR ASTRONOMY AND GEODESY / G.A. Wilkins = 39
• THE IAU WORKING GROUP ON REFERENCE SYSTEMS / J.A. Hughes = 47
• THE ORIGIN OF CELESTIAL COORDINATES / C.A. Murray = 51
• Part 2 Pulkovo today
• THE PULKOVO PROGRAMME FOR THE STUDY OF VISUAL DOUBLE STARS / A.A. Kisselev ; O.P. Bykov ; O.A. Kalinichenko ; O.V. Kiyaeva ; L.G. Romanenko ; N.A. Shakht = 63
• ON THE USE OF STATISTICAL PARALLAXES FOR THE PROPER MOTION REDUCTION / N.M. Bronnikova ; N.A. Shakht = 65
• ABSOLUTE DETERMINATIONS OF STAR DECLINATIONS FROM POLE TO POLE / V.A. Naumov = 67
• ON THE PHOTOGRAPHIC VERTICAL CATALOG / V.A. Naumov = 68
• ON THE PROGRAMME OF GROUND-BASED OBSERVATIONS OF BRIGHJT SELECTED MINOR PLANETS FOR 1991 - 2000 / Yu. V. Batrakov ; V.A. Shor = 69
• PULKOVO PROGRAMME FOR THE PHOTOGRAPHIC OBSERVATIONS OF SATELLITES OF PLANETS / T.P. Kisseleva ; V.V. Bobylev ; N.M. Bronnikova ; A.A. Dementjeva ; O.A. Kalinichenko ; A.A. Kisselev ; H.I. Potter ; S.V. Tolbin ; N.A. Shakht = 73
• CONFOR : A NEW PROGRAM FOR DETERMINING THE CONNETION BETWEEN RADIO AND OPTICAL REFERENCE FRAMES / V.S. Gubanov ; I.I. Kumkova ; V.V. Tel'nyuk-Adamchuk = 75
• A PROPOSAL FOR ASTROMETRIC OBSERVATIONS FROM SPAE / M.S. Chubey ; V.V. Makarov ; V.N. Yershov ; I.I. Kanayev ; V.A. Fomin ; Yu.S. Streletsky ; A.V. Schumacher = 77
• ON THE CREATION OF A NEW CATALOGUE FOR USSR TIME SERVICE / V.L. Gorshkov ; D.D. Polozhentsev ; A.A. Popov ; N.Y. Shecherbakova ; A.D. Polozhentsev = 81
• ON △$$\delta _\alpha $$ SYSTEMATIC ERRORS OF THE FK5 / G.S. Kosin = 83
• ON THE ORGANIZATION OF ABSOLUTE COORDINATE DETERMINATION OF THE FK5 STARTS / B.K. Bagildinsky ; V.A. Fomin ; I.S. Guseva ; T.R. Kirian ; A.A. Nemiro ; G.M. Petrov ; G.I. Pinigin ; V.D. Shkutov = 84
• THE FK4 ORIENTATION PARAMETERS DERIVED FROM PHOTOGRAPHIC AND VLBI OBSERVATIONS OF RADIO／OPTICAL OBJETS / V.S. Gubanov ; I.I. Kumkova ; N.I. Solina = 85
• EQUATOR AND ECLIPTIC FK5 POSITIONS ON THE BASIS OF SUN AND PLANETS OBSERVATIONS BY THE ERTEL-STRUVE VERTICAL CIRLEAT THE KISLOVODSK MOUNT STATION / A.V. Deyatkin ; K.G. Gnevysheva = 87
• THE NIKOLAEV AXIAL MERIDIAN CIRCLE : THE PRESENT AND FUTURE STATUS / O.E. Shomikov ; A.V. Shulga ; N.S. Liadovoi ; S.L. Kashtalian ; P.V. Meigurov = 88
• ON THE PROGRESS OF THE CONSTRUCTION OF THE SUKHAREV MERDIAN AUTOMATIC HORIZONTAL INSTRUMENT (SMAHI) / R.I. Gumerov ; V.B. Karpov ; T.R. Kirian ; N.S. Liadovoi ; G.I. Pinigin ; A.A. Pozhalov ; V.P. Sibilev ; A.W. Schumacher ; N.A. Shkutova ; O.E. Shornikov = 89
• CONSTRUCTIONS OF ASTROMETRIC INSTRUMENTATION AT PULKOVO OBSERVATORY / V.N. Yershov ; Yu.S. Streletsky ; N.V. Lebedev = 91
• POSITIONAL OBSERVATIONS OF COMPONENTS OF TRIPLE STARS FOR THE HIPPARCOS AND HST MISSIONS / J.P. Anosova ; V.V. Orlov = 93
• PROBLEM OF USING LUNAR POSITIONAL OBSERVATIONS FOR DETERMINATION OF ZERO-POINTS OF FUNDAMENTAL STAR CATALOGUES / V.A. Fomin = 93
• DENSITY FUNCTION OF THE FK4 SYSTEMATIC ERRORS / V.S. Gubanov ; N.I. Solina = 94
• ON THE TIE OF ASTROMETRIC RADIO SOURCES TO THE FK4 SYSTEM WITH ZENITH TELESCOPE ZTL-180 OBSERVATIONS / E.Ya. Prudnikova = 94
• CIRCLE READING DEVICE OF THE MERDIAN INSTRUMENT WITH A SELF-INSTALLED ZERO-POINT / G.I. Pinigin ; Y.A. Bubnov ; A.W. Shumacher = 94
• MODIFIED METHOD OF KREJNINA-MURRI FOR THE DETERMINATION OF ABSOLUTE DECLINATION / S.A. Tolehelnikova-Murri = 95
• ON THE DEFINITION OF AN "INERTIAL COORDINATE SYSTEM" / S.S. Peniansky = 95
• CONTRIBUTION OF SOVIET-BOLIVIAN ASTRONOMICAL OBSERVATORY IN THE CONSTRUCTION OF THE INERTIAL COORDINATE SYSTEM / D.D. Polozhentsev ; H.I. Potter ; L.I. Yagudin ; J.A. Zelaya ; R.F. Zalles = 96
• THE PROBLEM OF THE LEVELING OF THE RESERVED NET OF ARCS AT THE CELESTIAL SPHERE BY THE CONSTRUCTION OF THE REFERENCE COORDINATE SYSTEM / E.I. Yagudina = 96
• Part 3 Concepts, Definitions, Models
• THE CELESTIAL REFERENCE SYSTEM IN RELATIVISTIC FRAMEWORK / Han Chun-Hao ; Huang Tian-Yi ; Xu Bang-xin = 99
• GENERAL RELATIVISTIC DESCRIPTION OF CELESTIAL REFERENCE SYSTEMS / A.V. Voinov = 111
• RELATIVISTIC REFERENCE FRAMES OF LOCAL OBSERVER AND SPAE RADIOINTERFEROMETER / A.N. Alexandrov ; S.L. Parnovsky ; V.I. Zhdanov = 115
• THE OPTIMUM CONVENTIONAL TERRESTRIAL SYSTEM DETERMINED BY VLBI AND SLR STATIONS / W. Kosek ; B. Kolaczek = 118
• THE CELESTIAL SYSTEM OF THE INTERNATIONAL EARTH ROTATION SERVICE / E.F. Arias ; M. Feissel = 119
• A NEW CONCEPT OF CONSTUCTING AN ACCURATE COORDINATE SYSTEM FROM GROUND-BASED OPTICAL OBSERVATIONS / Mao Wei ; Hu Xiaochun ; Guo Xinjian ; Fan Yu = 129
• TRANSFORMATION OF THE MEAN PLACE FROM FK4 TO FK5 / M. Soma ; S. Aoki = 131
• THE COMPUTATION OF MEAN POSITIONS AND PROPER MOTIONS / C.S. Cole = 137
• CAN WE DEFINE AN INERTIAL REFERENCE SYSTEM? / Li Linghuai ; Tong Fu = 141
• THE ROLE OF OBSERVATION WITH HORIZONTAL MERIDIAN CIRCLE IN CHINA FOR ESTABLISHING AN INERTIAL FRAME / Li Zhi-gang ; Qi Guan-Rong = 142
• ON THE PROBLEM OF THE DEVELOPMENT OF ASTRONOMICAL REFRACTION METHODOLOGY ON THE BASIS OF NEW TECHNOLOGY / V.I. Sergienko = 142
• DETERMINATION OF REFRACTION AND PROGRESS OF FUNDAMENTAL ASTROMETRY / A.Yu. Yatsenko = 143
• PRECISION OF STUDIES FROM ASTROMETRIC OBSERVATIONS : RECENT PROGRESS AND FUTURE PROSPETS / Li Zheng-xin = 145
• NUTATION THEORY FOR A NON-RIGID EARTH : PRESENT STATUS AND FUTURE PROSPECTS / J. Wahr = 147
• PROPOSALS FOR AN IMPROVED NUTATION FORMULA / E. Groten ; S.Y. Zhu = 148
• THE RESULTS OF THE RECONSTRUCTION OF THE COEFFICIENTS OF THE NUTATION FOR THE RIGID EARTH MODEL AND THEIR COMPARISON WITH NUMERICAL INTEGRATION / J. Souehay ; H. Kinoshita = 149
• THE DETERMINATION OF THE PRONCIPAL NUTATION TERMS FROM THE OBSERVATIONS WITH ZTF-135 IN 1948. 7 - 1989. 0 / L.A. Glebova ; L.D. Kostina ; Z.M. Malkin ; N.R. Persiyaninova = 153
• CORRECTIONS TO THE IAU 1980 NUTATION SERIES FROM LAGEOS OBSERVATIONS / V.K. Tarady = 155
• OCEANIC INFLUENCES ON THE ANGULAR VELOCITY OF THE EARTH / P. Brosche = 156
• THE PROGRAM COMPLEX "KIEV - GEODYNAMICR1" / M.M. Medvedsky = 156
• CURRENT STATE OF THE THEORY OF NUTATION / S.M. Molodenskij = 156
• THE STUDY OF THE STRUCTURE OF 142-YEAR SERIES OF POLE COORDINATES / L.V. Rykhkova ; G.S. Kurbasova = 157
• DETERMINATION OF NUTATION BASED ON OBSERVATION WITH THE PULKOVO POLAR TUBE / O.V. Kotreleva = 160
• CAN THE CORE-MANTLE BOUNDARY TOPOGRAPHY INFLUENCE THE EARTH'S NUTATION? / V.V. Bykova = 161
• ON THE CALCULATION OF LOW FREQUENCY OSCILLATIONS OF THE EARTH'S CORE / S.V. Dyakonov = 163
• MEAN POLE OF THE MOON'S ROTATIONAL AXIS AND THE GENERAL SELENOCENTRIC COORDINATE SYSTEM / Barkin, Yu.V. = 165
• ON THE ASTROMETRICAL METHODS / V.G. Shkodrov ; V. Ivanova = 166
• REFERENCE SURFACES AND GLOBAL FIGURE PARAMETERS OF THE TERRESTRIAL PLANETARY BODIES / K.K. Kamensky = 167
• POSSIBLE CONTRIBUTIONS OF CLASSICAL ASTROMETRIC INSTRUMENT TO THE STUDY OF GEOSCIENCE AND REQUIREMENTS ON STAR CATALOGUES / Han Yanben ; Li Zhisen = 169
• DYNAMICAL REFERENCE FRAMES IN The PLANETARY AND EARTH-MOON SYSTEMS / E.M. Standish ; J.G. Willams = 173
• THE MAIN STAGES OF THE CONSTRUCTION OF AE89 - THE NUMERICAL EPHEMRIDES OF THE PLANETS AND THE MOON / M.L. Belikov ; V.N. Boyko ; N.I. Glebova ; G.I. Eroshkin ; L.I Rumyantseva ; M.L. Sveshnikov ; E.S. Sveshnikova ; R.I. Smekhacheva ; A.A. Trubitsyna ; M.A. Fursenko ; L.I. Chunaeva ; A.A. Shiryaev = 183
• EFFET OF THE NEW EQUINOX DEFINITION ON THE ZERO-POINT OF LONGITUDE OF THE INDIAN CALENDAR / A.K. Bhatnagar = 186
• THE CONSTRUCTION OF A FRAME OF HOMOGENEOUS ACCURACY BASED ON SPACE OBSERVATIONS / B.I. Vlasov = 186
• HIGH ACURACY ALGORITHMS OF NUMERICAL PREDICTION OF THE MOTION OF SOLAR SYSTEM BODIES / T.V. Bordovitsyna ; V.A. Shefer = 187
• ON THE ERRORS OF THE EPHEMERIDES DERIVED FROM OPTICAL OBSERVATIONS OF PLANETS / A.S. Kharin ; Yu.B. Kolesnik = 189
• DIFFERENCES BETWEEN DYNAMIC AND STELLAR REFERENCE FRAMES : RESULTS BASED ON ASTROMETRIC OBSERVATIONS OF MARTIAN SATELLITES / N.V. Emel'yanov ; Yu.F. Kolyuka ; S.M. Kudryavtsev ; K.V. Kuimov ; V.F. Tikhonov ; V.V. Chazov = 191
• THE POSSIBILITY TO LINK RADIO AND OPTICAL REFERENCE FRAMES WITH ARTIFICIAL SATELLITES / Tong Fu = 194
• ANCIENT CHINESE ASTRONOMICAL OBSERVATIONS RELATED TO THE STELLAR BACKGROUND IN THE SKY / Wu Shou-xian ; Liu Ci-yuan = 195
• SIDEREAL YEARS - CATALOGUE USES IN ARCHAEOASTRONOMY / K. Barlai ; I. Ecsedy = 197
• IMPROVED METHOD FOR ORBITAL ELEMENTS DIFFERENTIAL CORRECTION / A. L$$o'$$pez Garc$$i'$$a ; J.A. L$$o'$$pez Ortf ; R. L$$o'$$pez Machf = 199
• ON THE LUNAR SECULAR ACCELERATION : A POSSIBLE APPROACH / V. Protitch-Benishsk ; M.B. Protitch = 201
• FLUCTUATIONS OF THE EARTH'S ROTATION BY STELLAR OCCULTATIONS / C. Jordi ; G. Rossell$$o'$$ = 203
• SYSTEMATIC ASTROMETRIC ERRORS IN PULSAR TIMING / L. Fairhead = 205
• PULSAR ASTROMETRY - AVAILABILITIES AND RELATIVISTIC ASPECTS OF A PULSAR REFERENCE FRAME / O.V. Doroshenko ; Yu.P. Hyasov ; S.M. Kopejkin ; M.V. Sazhin = 213
• POINTS : A GLOBAL REFERENCE FRAME OPPORTUNITY / J.F. Chandler ; R.D. Reasenberg = 217
• RELATIVISTIC REDUCTION OF ASTROMETIC OBSERVATIONS AT POINTS LEVEL OF ACCURACY / V.A. Brumberg ; S.A. Klioner ; S.M. Kopejkin = 229
• ASTROMETRIC INTERFEROMETRY - CAN IT ESTABLISH A FUNDAMENTAL SYSTEM? / G.H. Kaplan = 241
• Part 4 Realization and comparison of reference frames
• THE DEFINITION AND STABILITY OF LOCAL INERTIAL REFERENCE FRAMES / R.N. Treuhaft ; S.T. Lowe = 253
• AN EXTRAGALACTIC REFERENCE FRAME FROM DSN VLBI MEASUREMENTS - 1989 / O.J. Sovers = 261
• REALIZATION OF AN INERTIAL REFERENCE FRAME FROM MARK Ⅲ VLBI / Chopo Ma = 271
• A PROGRESS REPORT ON THE ESTABLISHMENT OF THE RADIO／OPTICAL REFERENCE FRAME / J.L. Russell ; K.J. Johnston ; C.de Vegt ; N. Zacharias ; C. Ma ; D. Shaffer ; D.J. Jauneey ; J. Reynolds ; G. White ; G. Nicolson ; A. Kemball ; R. Hindsley ; J. Hughes = 281
• CORRECTIONS TO THE LUNI-SOLAR PRECESSION FROM RADIO POSITIONS OF EXTRAGALACTIC OBJECTS / H.G. Walter = 285
• DEDICATED SOVIET VLBI-NETWORK "QUASAR" / A.M. Finkelstein ; G.S. Golubehin ; V.M. Gorodetsky ; V.G. Grachev ; V.S. Gubanov ; A.V. Ipatov ; M.N. Kaidanovsky ; E.I. Korkin ; E.I. Nikolaev ; S.G. Smolenzev ; A.A. Stotsky ; N.D. Umarbaeva ; Ya.S. Yatskiv = 293
• A NEW APPROACH TO THE CONSTRUCTION OF A COMPILED CATALOGUE OF POSITIONS OF EXTRAGALACTIC RADIO SOURCES / Ya.S. Yatskiv ; A.N. Kuryanova = 295
• IN-ORBIT STATUS OF THE HIPPARCOS ASTROMETRY MISSION / M.A. C. Perryman = 297
• THE TYCHO PROJET ON-BOARD THE HIPPARCOS SATELLITE / E. HФg = 307
• HIPPARCOS AND REFERENCE SYSTEMS / F. Mignard = 311
• A STRATEGY FOR LINKING HIPPARCOS TO AN EXTRA-GALACTIC REFERENCE FRAME / A.N. Argue = 323
• THE REFERENCE FRAME DETERMINED FROM THE OBSERVATION OF MINOR PLANETS BY HIPPARCOS / B. Morando ; A. Bec-Borsenberger = 329
• ON THE IMPROVEMENT OF THE SYSTEM OF FUNDAMENTAL CATALOGUES BASED ON ASTEROID OBSERVATIONS / D.P. Dunia ; P.M. Fedij = 337
• EXPECTATIONS FOR ASTROMETRY WITH THE HUBBLE SPACE TELESCOPE / R.L. Duncombe ; W.H. Jefferys ; G.F. Benedict ; P.D. Hemenway ; P.J. Shelus = 339
• SPACE ASTROMETRY AND THE HST WIDE FIELD／PLANETARY COMERA / P.K. Seidelmann = 347
• THE LOMONOSOV PROJET FOR SPACE ASTROMETRY / V.V. Nesterov ; A.A. Ovchinnikov ; A.M. Cherepashehuk ; E.K. Sheffer = 355
• REGATTA-ASTRO PROJET : ASTROMETRIC STUDIES FROM SMALL SPACE LABORATORY / G.A. Avanesov ; V.A. Vavaev ; Ya.L. Ziman ; A.Yu. Kogan ; V.I. Kostenko ; V.A. Krasikov ; V.P. Fedotov ; V.N. Khejfelz ; Yu.M. Chesnokov = 361
• ON THE ROLE OF STAR CATALOGUES FOR AUTONOMOUS SPACE NAVIGATION / V.V. Ivashkin = 367
• THE USNO (FLAGSTAFF STATION) CCD TRANSIT TELESCOPE AND STAR POSITIONS MEASURED FROM EXTRAGALACTIC SOURCES / R.C. Stone ; D.G. Monet = 369
• THE FK5 : PRESENT STATUS AND SOME DERIVED RESULTS / H. Schwan = 371
• CELESTIAL COORDINATE SYSTEM AND THE FK5 CATALOGUE / A.P. Gulyaev = 383
• SYSTEMATIC DIFFERENCES INSTRUMENT MINUS FK5 IN THE SOUTHERN HEMISPHERE / G. Carrasco ; P. Loyola = 385
• EFFECT OF THE FK5-FK4 CATALOGUE CORRECTIONS FOR THE OBSERVATIONS OF THE PHOTOELECTRIC ASTROLABE AT SHANGHAI OBSSERVATORY / Xu Tong-Qi ; Li Zheng-Xin = 387
• DIFFERENCES IN CHANGE OF BOROWIEC GEOGRAPHICAL COORDINATES CAUSED BY THE REPLACEMENT OF FK4 CATALOGUE BY FK5 / M. Lehmann = 389
• OPTICAL REFERENCE FRAME DEFINED BY CARLSBERG MERIDIAN CATALOGUE LA PALMA NUMBER4 / L.V. Morrison ; R.W. Argyle ; L. Helmer ; C. Fabricius ; O.H. Einicke ; L. Quijano ; J.L. Mui$$\tilde n$$os = 391
• FIRST RESULTS FROM THE NEW MICROMETER ON THE CARLSBERG AUTOMATIC MERIDIAN CIRCLE / C. Fabricius ; L. Helmr ; O.H. Einicke ; L.V. Morrison ; M.E. Buontempo ; R.W. Argyle ; L. Quijano ; J.L. Mui$$\tilde n$$os = 403
• THE CONSTRUCTION OF 4 DENSE ASTROMETRIC STANDARD AREAS WITH THE CARLSBERG AUTOMATIC MERIDIAN CIRCLE / G. Chiumiento ; C. Fabricius ; M.G. Lattanzi ; G. Massone = 406
• PROPER MOTIONS WITH RESPECT TO THE EXTRAGALACTIC REFERENCE FRAME / A.R. Klemola = 407
• THE YALE-SAN JUAN SOUTHERN PROPER MOTION PROGRAM (SPM) / W.F. van Altena ; T. Girard ; C.E. L$$o'$$pez ; J.A. L$$o'$$pez ; E. Molina = 419
• CORRECTION TO ABSOLUTE PROPER MOTION USING THE IAS-GALAXY MODEL / K.U. Ratnatunga = 427
• PHYSICAL DATA OF THE FUNDAMENTAL STARS / Luo Ding-jiang ; Zhang Bao-cai = 430
• REALIZATION OF THE LOCAL INERTIAL GEOCENTRIC FRAME IN REALTIVITY / He Miao-Fu ; Huang Cheng = 430
• THE GENERAL CATALOGUE OF STELLAR PROPER MOTION WITH RESPECT TO GALAXIES WITH ASTROPHYSIC SUPPLEMENT / N.V. Kharchenko = 431
• FAINT REFERENCE STARS / T.E. Corbin ; S.E. Urban = 433
• ASTROMETRY WITH THE TAUTENBURG SCHMIDT TELESCOPE / K.G. Steinert = 443
• COMPARISON OF ASTROMETRICAL ACCURACY OF BIG SCHMIDT TELESCOPES / E. Sehilbach ; S. Hirte ; J.-L. Heudier = 449
• DETERMINATION OF ABSOLUTE PROPER MOTIONS BY USE OF AUTOATED MEASUREMENTS OF TAUTENBURG PLATES / R.-D. Scholz = 451
• OPTICAL ASTROMETRY OF EXTRAGALACTIC RADIO SOURCES WITH THE TAUTENBURG SCHMIDT TELESCOPE / W.R. Dick ; I.I. Kimkova = 453
• CCD PARALLAXES FOR FAINT SOUTHERN HIGH PROPER MOTION STARS / C. Anguita ; M. T. Ruiz = 455
• A COMPARISON OF THE ACCURACY OF THE DETERMINATION OF RIGHT ASCENSION BY MEANS OF TRANSIT INSTRUMENTS OF DIFFERENT TYPES / S.P. Izmailov ; N.G. Litkevich ; S.N. Sadzakov ; V.D. Simonenko ; S.A. Telehelnikova-Murri ; V.I. Turenko = 456
• INDIVIDUAL STAR CATALOGUES OF THE UNIFIED TIME SERVICE OF KHARKOV SCIENTIFIC AND RESEARCH INSTITUTE AND KHARKOV UNIVERSITY ASTRONOMICAL OBSERVATORY / S.P. Izmailov ; N.G. Litkevich ; V.D. Simonenko ; V.I. Turenko = 456
• THE KHARKOV RIGHT ASCENSION CATALOG OF DOUBLE STARS AND HIGH LUMINOSITY STARS FOR THE DECLINATION ZONE+$$30^^\circ $$TO+$$90^^\circ $$ / V.M. Kirpatovskij = 456
• THE SRS CATALOG OF 20, 488 STAR POSITIONS : CULMINATION OF AN INTERNATIONAL COOPERATIVE EFFORT / C.A. Smith ; T.E. Corbin ; J.A. Hughes ; E.S. Jackson ; E.V. Khrutskaya ; A.D. Polozhentsev ; D.D. Polozhentsev ; L.I. Yagudin ; M.S. Zverev = 457
• PPM : A TOOL FOR ASTRONOMERS / U. Bastian = 465
• THE SYSTEM OF THE PPM CATALOGUE / S. R$${\ddot o}$$ser = 469
• THE MACHINE-READABLE DURCHMUSTERUNGEN CLASSICAL CATALOGS IN CONTEMPORARY FORM / W.H. Warren Jr ; F. Ochsenbein ; B.N. Rappaport = 479
• THE SECOND CAPE PHOTOGRAPHIC CATALOGUE : CPC2 / C.A. Murray ; M.J. Penston ; N. Zacharias ; Chr. de Vegt = 482
• AN ASTROMETRIC CATALOG OF FOUR MILLION STARS / V.V. Nesterov ; V.S. Kislyuk ; H.I. Potter = 482
• A COMPREHENSIVE ASTROMETRIC DATA BASE : AN INSTRUMENT FOR COMBINING EARTH-BOUND OBSERVATIONS WITH HIPPARCOS DATA / R. Wielen = 483
• A PRESENTATION OF THE WORK PERFORMED WITH THE BELGRADE LARGE MERIDIAN CIRCLE DURING THE PERIOD 1968 - 1988 / S. Sad$$\mathord{\buildrel{\lower3pt\hbox{$\scriptscriptstyle\smile$}}\over z} $$akov ; Z. Cvetkovi$$c'$$ ; M. Da$$\mathord{\buildrel{\lower3pt\hbox{$\scriptscriptstyle\smile$}}\over c} $$i$$c'$$ = 489
• THE FLAGSTAFF MEASURING MACHINE / G. Westerhout ; D. Monet = 491
• CURRENT STATUS OF THE PROJECT OF PHOTOGRAPHIC FOURFOLD COVERAGE OF THE NORTHERN HEMISPHERE OF SKY / V.S. Kislyuk = 493
• THIRD PRELIMINARY CATALOGUE OF STARS OBSERVED WITH THE PHOTOELECTRIC ASTROLABE / Lu Lizhi = 495
• THE ESTABLISHMENT OF AN ASTROMETRIC STANDARD REGION IN THE NGP : STAR CATALOGUE / L.K. Pakulyak = 497
• RESEARCH ON THE ERRORS IN DETERMINATION OF PRECISE OPTICAL POSITIONS OF RADIO SOURCES / Lu Chun-lin ; Li Dong-Ming = 499
• TORINO PROGRAMME ON RADIOSOURCES ASTROMETRY : PROGRESS REPORT / G. Chiumiento ; M.G. Lattanzi ; G. Massone ; R. Morbidelli ; R. Pannunzio ; M. Sarasso = 501
• OCCULTATION OF RADIO SOURCES FOR THE LINKAGE OF RADIO AND STELLAR REFERENCE FRAMES / M. S$$\hat o$$ma ; M. Miyamoto ; S. Aoki = 503
• COMPRARISON OF OPTICAL AND RADIO POSITIONS OF STARS / L.V. Morrison ; R.W. Argyle ; Y. R$$e'$$qui$$\bprime e$$me ; J.M. Mazurier = 513
• COMPRARISON OF PROPER MOTIONS OF STARS FROM AGK3 AND SPECIAL COMPILED CATALOGUE IN REGIONS WITH GALAXIES / S.P. Rybka = 515
• AN ADVANCED ASTROMETRIC SENSOR ARRAY / D.G. Monet ; H.D. Ables = 517
• MODERNIZATION OF CHINESE PHOTOELECTRIC ASTROLABES AND IMPROVEMENT OF OPTICAL REFERENCE SYSTEM / Li Dong-Ming ; Wang Hong-Qi ; Zhao Gang ; Wang Ze-Zhi ; Wang Rui = 519
• INDEX = 521