The AAVSO International Database On-Line: Nearly a Century of Variable Star Data at Your Fingertips!
The Abundances of Light Neutron-Capture Elements in Planetary Nebulae
The ALEXIS Data Processing Package: an Update
The ALFA Zone of Avoidance Survey
The Algorithms of Updating Sequential Patterns
The Antarctic Meteorite Location and Mapping Project (AMLAMP) Geographic Information System (GIS)
The Application of Artificial Neural Networks: A Catalog of Spectral Indices
The APS Catalogs of the POSS I - New Data and New Tools
The APS Luyten Proper Motion Project
The APS-Luyten Proper Motion Project
The Araucaria project - improving stellar distance indicators
The Arecibo Legacy Fast ALFA Survey: HI Sources in the Northern Virgo Cluster Region
The Armenian Virtual Observatory, ArVO
The ASDC Multi Mission Interactive Archive: on line analysis of the Swift/XRT data
The Asilomar Report on Database Research
The ASTRA Spectrophotometer: Design and Overview
The Astro-1/UIT ultraviolet galaxy Atlas
The AstroGrid MySpace System
The Automated Plate Scanner Catalog of the Palomar Observatory Sky Survey. II. The Archived Database
The BATSE 3B catalog