Physics and Astronomy Classification Scheme 1999

90. GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS ( 0 Dok.)

• 91. Solid Earth physics ( 0 Dok. )

• 92. Hydrospheric and atmospheric geophysics ( 0 Dok. )

• 93. Geophysical observations, instrumentation, and Techniques ( 0 Dok. )

• 94. Aeronomy and magnetospheric physics ( 0 Dok. )

• 95. Fundamental astronomy and astrophysics; instrumentation, Techniques, and astronomical observations ( 0 Dok. )

• 96. Solar System (for the Earth, see 91-94) ( 0 Dok. )

• 97. Stars ( 0 Dok. )

• 98. Stellar systems; interstellar medium; galactic and Extragalactic objects and systems; the Universe ( 0 Dok. )