| Solar Physics | or | en | Cosmogony | or | en | |||
| Cosmic Absorption | or | en | Theoretical Physics | or | en | |||
| Nebulae: planetary, cometary, etc. | or | en | Mathematics | or | en | |||
| Stellar Dynamics | or | en | Philosophy | or | en | |||
| Non-Stable Stars: flare, T Tauri, etc. | or | en | Extraterrestrial Civilizations | or | en | |||
| Stellar Associations | or | en | General Astronomy and Reports | or | en | |||
| Stellar Evolution | en | Popular Astronomy | en | |||||
| Galaxies: active nuclei, groups, etc. | or | en | General Science | or | en | |||
| Superdense Matter | or | en | Other Subjects | or | en | |||
| Theoretical Astrophysics | en |