85XX 


Astronomy and astrophysics {For celestial mechanics, see 70F15} 


8500 
General reference works (handbooks, dictionaries, bibliographies, etc.) 


8501 
Instructional exposition (textbooks, tutorial papers, etc.) 


8502 
Research exposition (monographs, survey articles) 


8503 
Historical (must also be assigned at least one classification number from Section 01) 


8504 
Explicit machine computation and programs (not the theory of computation or programming) 


8505 
Experimental work 


8506 
Proceedings, conferences, collections, etc. 


8508 
Computational methods 


85A04 
General 


85A05 
Galactic and stellar dynamics 


85A15 
Galactic and stellar structure 


85A20 
Planetary atmospheres 


85A25 
Radiative transfer 


85A30 
Hydrodynamic and hydromagnetic problems [See also 76Y05] 


85A35 
Statistical astronomy 


85A40 
Cosmology {For relativistic cosmology, see 83F05} 


85A99 
Miscellaneous topics 