The Motion, Evolution of Orbits, and Origin of Comets

Front Matter....Pages I-XXIII
Evolution of Cometary Orbits on a Cosmogonic Time Scale....Pages 1-5
Front Matter....Pages 7-7
Cometary Observations and Variations in Cometary Brightness....Pages 9-15
Cometary Brightness Variations and Conditions in Interplanetary Space....Pages 16-21
Observations of Comets at the Crimean Astrophysical Observatory....Pages 22-24
L’observation des Comètes à L’astrographe de L’observatoire de Nice....Pages 25-26
Physical Observations of the Short-Period Comet 1969 IV....Pages 27-34
On Establishing an International Service for Cometary Observations and Ephemerides....Pages 35-35
General Remarks on Orbit And Ephemeris Computation....Pages 36-37
Front Matter....Pages 39-39
A Series-Solution Method for Cometary Orbits....Pages 43-51
On the Application of Hansen’s Method of Partial Anomalies to the Calculation of Perturbations in Cometary Motions....Pages 52-54
Orbital Characteristics of Comets Passing through the 1:1 Commensurability with Jupiter....Pages 55-60
The Motions of Bodies Close to Commensurabilities with Jupiter....Pages 61-61
On the Motion of Short-Period Comets in the Neighbourhood of Jupiter....Pages 62-65
Secular Perturbations on Periodic Comets....Pages 66-80
A Numerical Method of Integration by Means of Taylor-Steffensen Series and its Possible Use in the Study of the Motions of Comets and Minor Planets....Pages 83-85
A Library of Standard Programmes for Constructing Numerical Theories for Studying the Motion and Evolution of the Orbits of the Minor Bodies of the Solar System....Pages 86-89
The Solution of Problems of Cometary Astronomy on Electronic Computers....Pages 90-94
A Method of Integrating the Equations of Motion in Special Coordinates and the Elimination of a Discontinuity in the Theory of the Motion of Periodic Comet Wolf....Pages 95-102
The Use of the Electronic Computer for the Urgent Publication of Astronomical Material....Pages 103-104
A Numerical Interpretation of the Homogenization of Observational Material for One-Apparition Comets....Pages 107-111
Front Matter....Pages 39-39
The Problem of Elaboration and Classification of Observational Material for One-Apparition Comets....Pages 112-117
The Influence of Properties of a Set of Observations on the Weights of Determination of the Orbital Elements of a One-Apparition Comet....Pages 118-122
On the Differential Correction of Nearly Parabolic Orbits....Pages 123-123
Standardization of the Calculation of Nearly Parabolic Cometary Orbits....Pages 124-126
Détermination D’orbites Paraboliques à Partir de N Observations Au Moyen de L’ordinateur Électronique....Pages 127-129
Front Matter....Pages 131-131
Nongravitational Effects on Comets: The Current Status....Pages 135-143
On the Determination of Nongravitational Forces Acting on Comets....Pages 144-151
A Search for Encke’s Comet in Ancient Chinese Records: A Progress Report....Pages 152-154
The Motion of Halley’s Comet from 837 to 1910....Pages 155-155
A Numerical Analysis of the Motion of Periodic Comet Brooks 2....Pages 156-166
Linkage of Seven Apparitions of Periodic Comet Faye 1925–1970 and Investigation of the Orbital Evolution during 1660–2060....Pages 167-172
Investigation of the Motion of Periodic Comet Giacobini-Zinner and the Origin of the Draconid Meteor Showers of 1926, 1933 and 1946....Pages 173-180
Nongravitational Forces and Periodic Comet Giacobini-Zinner....Pages 181-186
A Non-Newtonian Orbit for Periodic Comet Borrelly....Pages 187-189
An Investigation of the Motion of Periodic Comet Borrelly from 1904 to 1967....Pages 190-194
The Motion of Periodic Comet Pons-Brooks, 1812–1954....Pages 195-199
Periodic Comet Tempel-Tuttle and the Leonid Meteor Shower....Pages 200-202
Investigation of the Motion of Periodic Comet Stephan-Oterma....Pages 203-205
Determination of Planetary Masses from the Motions of Comets....Pages 209-226
The Determination of Jupiter’s Mass from Large Perturbations on Cometary Orbits in Jupiter’s Sphere of Action....Pages 227-232
Front Matter....Pages 131-131
Determination of the Mass of Jupiter from Observations of 10 Hygiea during 1932–1969....Pages 233-238
The Motion of Hidalgo and the Mass of Saturn....Pages 239-243
On the Determination of Planetary Masses....Pages 244-245
The Influence of Minor Planets on the Motions of Comets....Pages 246-250
Front Matter....Pages 251-251
Physical Processes in Cometary Atmospheres....Pages 253-259
Some Remarks on the Liberation of Gases from Cometary Nuclei....Pages 260-264
The Chemical Composition of Cometary Nuclei....Pages 265-270
The Evolution of Cometary Nuclei....Pages 271-276
On The Sizes of Cometary Nuclei....Pages 277-282
Splitting and Sudden Outbursts of Comets as Indicators of Nongravitational Effects....Pages 283-286
On Nongravitational Effects in Two Classes of Models for Cometary Nuclei....Pages 287-293
Rotation Effects in the Nongravitational Parameters of Comets....Pages 294-300
A Model for the Nucleus of Encke’s Comet....Pages 301-307
Laboratory Simulation of Icy Cometary Nuclei....Pages 308-315
A Nongravitational Effect in the Simulation of Cometary Phenomena....Pages 316-323
Front Matter....Pages 325-325
Ejection of Bodies from the Solar System in the Course of the Accumulation of the Giant Planets and the Formation of the Cometary Cloud....Pages 329-334
On the Stability of the Oort Cloud....Pages 335-340
Determination of the Form of the Oort Cometary Cloud as the Hill Surface in the Galactic Field....Pages 341-345
On ‘New’ Comets and the Size of the Cometary Cloud....Pages 346-346
Diffusion of Comets from Parabolic into Nearly Parabolic Orbits....Pages 347-351
Front Matter....Pages 325-325
New Estimates of Cometary Disintegration Times and the Implications for Diffusion Theory....Pages 352-355
Comets and Problems of Numerical Celestial Mechanics....Pages 356-359
The Effect of the Ellipticity of Jupiter’s Orbit on the Capture of Comets to Short-Period Orbits....Pages 360-363
Evolution of Short-Period Cometary Orbits Due to Close Approaches to Jupiter....Pages 364-369
A New Orbital Classification for Periodic Comets....Pages 370-372
The Major Planets as Powerful Transformers of Cometary Orbits....Pages 373-397
The Origin of Comets....Pages 401-408
On the Origin of Comets and Their Importance for the Cosmogony of the Solar System....Pages 409-412
The Origin and Evolution of the Comets and Other Small Bodies in the Solar System....Pages 413-418
On the Problem of the Origin of Comets....Pages 419-425
Front Matter....Pages 427-427
Investigation of the Orbital Stability of Minor Planets with Cometary Eccentricities....Pages 431-436
Evolution of the Orbits of Selected Minor Planets During an Interval of 1000 Years....Pages 437-439
Secular Perturbations on the Minor Bodies of the Solar System....Pages 440-440
The Use of the Halphen-Goryachev Method in the Study of the Evolution of the Orbits of the Quadrantid and δ Aquarid Meteor Streams....Pages 441-441
On the Rate of Ejection of Dust by Long-Period Comets....Pages 442-446
Évolution Séculaire des Orbites de Particules Météoriques....Pages 447-453
Deformation of a Meteor Stream caused by an Approach to Jupiter....Pages 454-461
Orbital Evolution of the α Virginid and α Capricornid Meteor Streams....Pages 462-471
Theoretical Cometary Radiants and the Structure of Meteor Streams....Pages 472-481
On the Relation Between Comets and Meteoroids....Pages 485-486
Front Matter....Pages 427-427
Formation of Comets in Meteor Streams....Pages 487-490
Statistics of the Orbits of Meteor Streams and Comets....Pages 491-497
On the Production of Meteor Streams by Cometary Nuclei....Pages 498-502
On the Dividing Line between Cometary and Asteroidal Orbits....Pages 503-514
On the Possible Common Origin of Minor Planets, Comets, and Meteors....Pages 515-515
Back Matter....Pages 517-521