|
Div I
|
Fundamental Astronomy
|
871
|
|
Commissions:
|
|
4
|
Ephemerides
|
86
|
|
7
|
Celestial Mechanics & Dynamical Astronomy
|
240
|
|
8
|
Positional Astronomy
|
179
|
|
19
|
Rotation of the Earth
|
141
|
|
24
|
Photographic Astronomy
|
131
|
|
31
|
Time
|
94
|
|
|
|
|
|
Div II
|
Sun & Heliosphere
|
1045
|
|
Commissions:
|
|
10
|
Solar Activity
|
563
|
|
12
|
Solar Radiation & Structure
|
356
|
|
49
|
The Interplanetary Plasma & the Heliosphere
|
126
|
|
|
|
|
|
Div III
|
Planetary Systems Sciences
|
1191
|
|
Commissions:
|
|
15
|
Physical Study of Comets, Minor Planets & Meteorites
|
289
|
|
16
|
Physical Study of Planets & Satellites
|
245
|
|
20
|
Position & Motions of Minor Planets, Comets & Satellites
|
193
|
|
21
|
Light of the Night Sky
|
103
|
|
22
|
Meteors & Interplanetary Dust
|
106
|
|
51
|
Bioastronomy:Search for Extraterrestrial Life
|
255
|
|
|
|
|
|
Div IV
|
Stars
|
1166
|
|
Commissions:
|
|
26
|
Double & Multiple Stars
|
103
|
|
29
|
Stellar Spectra
|
317
|
|
35
|
Stellar Constitution
|
329
|
|
36
|
Theory of Stellar Atmospheres
|
293
|
|
45
|
Stellar Classification
|
124
|
|
|
|
|
|
Div V
|
Variable Stars
|
737
|
|
Commissions:
|
|
27
|
Variable Stars
|
369
|
|
42
|
Close Binary Stars
|
368
|
|
|
|
|
|
Div VI
|
Interstellar Matter
|
750
|
|
Commission:
|
|
34
|
Interstellar Matter
|
750
|
|
|
|
|
|
Div VII
|
Galactic System
|
594
|
|
Commissions:
|
|
33
|
Structure & Dynamics of the Galactic System
|
367
|
|
37
|
Star Clusters & Associations
|
227
|
|
|
|
|
|
Div VIII
|
Galaxies and the Universe
|
1259
|
|
Commissions:
|
|
28
|
Galaxies
|
778
|
|
47
|
Cosmology
|
481
|
|
|
|
|
|
Div IX
|
Optical & Infrared Techniques
|
628
|
|
Commissions:
|
|
9
|
Instruments
|
307
|
|
25
|
Stellar Photometry & Polarimetry
|
206
|
|
30
|
Radial Velocities
|
115
|
|
|
|
|
|
Div X
|
Radio Astronomy
|
850
|
|
Commission:
|
|
40
|
Radio Astronomy
|
850
|
|
|
|
|
|
Div XI
|
Space and High Energy Astrophysics
|
728
|
|
Commission:
|
|
44
|
Space and High Energy Astrophysics
|
728
|
|
|