QB 1-991 | Astronomy |
QB 1-139 | General (includes encyclopedias, etc.) |
QB 140-237 | Practical and spherical astronomy |
QB 275-343 | Geodesy |
QB 349-421 | Theoretical astronomy and celestial mechanics |
QB 455-456 | Astrogeology |
QB 460-466 | Astrophysics |
QB 468-480 | Non-optical methods of astronomy |
QB 495-903 | Descriptive astronomy |
QB 500.28 | Northern Sky |
QB 500.3 | Southern Sky |
QB 500.5-518 | Solar System |
QB 520-526 | Sun |
QB 528-539 | Atmosphere, chromosphere. |
QB 540 | Solar eclipses |
QB 579 | Lunar eclipses |
QB 595-600 | Planets. Planetology. |
QB 980-991 | Cosmogony. Cosmology |