Stargazers: The Contribution of Amateurs to Astronomy, Proceedings of Colloquium 98 of the IAU, June 20–24, 1987

Front Matter....Pages I-XVII
Front Matter....Pages 1-1
Amateur Astronomy from Its Origins to Camille Flammarion....Pages 2-10
Camille Flammarion (1842–1925): Founder of the Société Astronomique de France....Pages 11-14
The Historical Contribution of Amateurs to the Study of Double Stars....Pages 15-19
Twentieth-Century Amateur Astronomy....Pages 20-23
Criteria for Identifying an Astronomer as an Amateur....Pages 24-25
Johannes Hevelius: Polish Seventeenth-Century Brewer and Astronomer....Pages 26-27
Eugène Antoniadi (1870–1944) and Planetary Observation....Pages 28-30
Investigating Astronomy’s History....Pages 31-31
Charles Boyer and the Rotation of Venus....Pages 32-34
The Amateur and Eclipsing Binary Stars....Pages 35-39
Amateur Astronomy in Poland: Past and Present....Pages 40-43
Giovanni Battista Lacchini: An Amateur Astronomer from Italy....Pages 44-45
The Instruments of H.E. Dall....Pages 46-47
Roberts of Lovedale and Eclipsing Binary Stars....Pages 48-49
Seventeenth-Century Solar Observations: Fundamental Results with Amateur Instruments....Pages 50-50
Sailors and Astronomy....Pages 51-53
The Map of the Heavens at the Chateau de Saint-Jean-de-Chepy....Pages 54-54
Amateur Astronomy in France, 1789–1830: Two Examples....Pages 55-55
Some French Amateurs of the 2nd Half of the 19th Century....Pages 56-56
Comet Halley in 1910 in Franche-Comté: or Collective Memory at Fault....Pages 57-57
Front Matter....Pages 1-1
A Renowned, Yet Forgotten Astronomer: Marcel de Kerolyr....Pages 58-61
Historical Session: The Contribution of Amateurs to Astronomy, Yesterday and Today....Pages 62-62
Front Matter....Pages 63-63
Amateur Astronomers and the IAU Central Bureau for Astronomical Telegrams and Minor Planet Center....Pages 64-76
Contributions of Amateur Astronomers to Variable-Star Observing....Pages 77-86
Observations of Comets, Minor Planets and Meteors in Japan....Pages 87-89
Amateur Astronomers’ Contribution to the HIPPARCHOS Programme....Pages 90-92
The S.A.F. Double Star Section’s Contribution to the INCA-HIPPARCHOS Programme....Pages 93-94
Working with Amateur Astronomers....Pages 95-99
Amateur Astronomers and the Hubble Space Telescope....Pages 100-101
The T.60 Operation at Pic du Midi....Pages 102-103
The Effects of Light Pollution on Amateur Astronomy....Pages 104-104
An Amateur CCD Camera....Pages 105-107
A Spectrograph for the T.60 at Pic du Midi....Pages 108-109
Using an Image-Intensifier in Astronomy....Pages 110-110
Amateur Polarimetric Research....Pages 110-110
Searching for Variables, and Constructing a Slit-less Spectroscope....Pages 111-111
Solar Spectroscopy with a CCD....Pages 111-111
Obtaining Extraterrestrial Dust by Balloon Probes....Pages 111-111
Making a Telescope Mirror....Pages 112-112
Searching for Comets....Pages 112-112
Front Matter....Pages 63-63
Achievements in Astronomical Video Data Collection....Pages 113-119
Video Grazing Occultations....Pages 120-121
An Improved Method of Photographic Measures of Double Stars....Pages 122-127
The Scientific Merit of Amateur Astrophotography....Pages 128-130
Reduction of Variable-Star Observations Using Basicode....Pages 131-132
Image Digitizer....Pages 133-133
“Comet” Software....Pages 133-133
Refining the Orbit of Visual Double Stars....Pages 133-133
Reliability and Accuracy of Astronomical Observations by Amateurs....Pages 134-137
Trying to Reduce Errors in Visual Estimates of Variable Star Magnitudes....Pages 138-142
Front Matter....Pages 143-143
Photographic Observation of Stellar Occultations....Pages 144-145
Studying “Luna Incognita”: The Region Near the South Pole....Pages 146-146
Asteroid and Cometary Occultations....Pages 147-148
Astrometric Measurements of Rarely-Observed Minor Planets....Pages 149-149
Video Recordings of Asteroidal Occultations....Pages 149-149
Space Exploration of Comets and the Evolution of Amateur-Professional Cooperation....Pages 150-151
The Contribution of Amateur Astronomers to Cometary Observation....Pages 152-152
New Method of Statistical Analysis of Cometary Light-Curves Applied to P/Halley....Pages 153-154
P/Halley: The Disconnection Event of 1986 April 11....Pages 155-157
A Study of Disconnection Velocities in the Plasma Tail of P/Halley....Pages 158-159
Front Matter....Pages 143-143
Analysis of the Light-Curve of Comet P/Halley in 1985–1986....Pages 160-162
New Trends in the Discovery of Comets by Amateurs....Pages 163-163
Amateur Astronomers and the Recovery of Periodic Comets....Pages 163-164
Shape and Frequency of Outbursts of P/Schwassmann-Wachmann 1....Pages 164-164
Astrometry of Comet Halley....Pages 164-164
Observation and Analysis of Comet Tails....Pages 164-165
Photometric Analysis of the Solar Corona on 1984 November 22/23....Pages 166-167
Chromospheric Eruptions Observed with a Wide Slit....Pages 168-168
Amateur/Professional Cooperation in 2 Solar Studies....Pages 168-168
The IOTA Expedition Results from the Total-Annular Eclipse in Gabon, 1987....Pages 169-169
Meteor Studies....Pages 170-172
The “Sonate” Campaign....Pages 173-174
Two Solar Observation Programmes....Pages 175-176
Long-term Monitoring of Solar Activity by Amateur Astronomers....Pages 177-180
The Moonwatch Program: A Model for Amateur Contributions to the ISY....Pages 181-182
Study of Variable Stars....Pages 183-184
The Contribution of Amateur Astronomers to the Study of Variable Stars....Pages 185-187
Professional/Amateur Cooperation in the Study of Variable Stars as Illustrated by the Fourth Edition of the GCVS....Pages 188-189
Amateurs and the Search for Supernovae....Pages 190-191
The U.K. Nova/Supernova Search Programme....Pages 192-193
Front Matter....Pages 143-143
GEOS — Groupe Europeen d’Observations Stellaires....Pages 194-195
GEOS Results for PX Cephei....Pages 196-196
The French Network for Observing Comets and Small Solar-System Bodies....Pages 197-197
Amateurs’ Contribution to the PHEMU85 Campaign Observing Mutual Phenomena of Jupiter’s Satellites....Pages 198-198
Wanted: An International Jovian-Satellite-Phenomenon Centre....Pages 199-199
The European Section of IOTA: Scientific Programme Coordination and Results....Pages 199-199
The Role of the Amateur in Modern Astronomy....Pages 200-200
Front Matter....Pages 201-201
Meeting the Public: Popular Observatories....Pages 202-204
Comet Halley: A Media Event....Pages 205-207
A Planetarium for Astronomy....Pages 208-209
Astronomical Publications....Pages 210-212
Problems in Publishing a Popular Journal in a Small Country....Pages 213-213
Methods of Popularizing Astronomy in Various Countries....Pages 214-214
Opening the Sky to Everyone....Pages 215-215
Interesting Business in Astronomy....Pages 215-215
Preparing Astronomical Videotapes....Pages 216-216
Transmission of Astronomical Data and Information by the A.F.A. Videotext System....Pages 216-216
The Solar System Promenade....Pages 216-216
The Open Sky Underground....Pages 217-217
Teaching Astronomy in Schools....Pages 217-217
Front Matter....Pages 201-201
Teaching Astronomy and the Vital Role of the True Amateur....Pages 217-217
Astronomical Education in Poland....Pages 218-218
Astronomy and Computing in Spanish (Aragon) High Schools....Pages 218-218
The Planetarium at the Palais de la Découverte....Pages 218-219
The Starlab Mobile Planetarium in the Mid-Pyrenees....Pages 219-219
The Planetarium at a School in Nice....Pages 219-219
The Planetarium as a Medium for Teaching Astronomy....Pages 219-219
Twenty Years of the Japan Amateur Astronomers’ Convention....Pages 220-220
Astronomy in the Big Apple....Pages 220-220
The Activities of Astronomical Clubs....Pages 220-220
The Flammarion Astronomical Society of Montpellier....Pages 221-221
A Decade of Organized Work in Venezuela....Pages 221-221
The Bochum Observatory....Pages 221-221
The Triel Observatory....Pages 222-222
The Bruno-H.-Bürgel Observatory....Pages 222-222
The Strasbourg Observatory....Pages 222-222
Feeding the Five Thousand....Pages 223-223
Efforts by the Instituto de Astrophisica de Canarias to Publicise Astronomy....Pages 223-223
Tailor-Made Messages: Astronomical Information for Diverse Audiences....Pages 223-224
The Role of the Observatoire de Paris, Meudon in Providing Astronomical Information....Pages 224-224
Front Matter....Pages 201-201
Observations — Concluding Remarks....Pages 225-227
International Astronomical Union — Colloquium 98 General Session....Pages 228-230
Back Matter....Pages 231-237