Here is a useful list of Astrophysics related information. Originally compiled by Carl Schmidt at BU and posted here with local additions.
Spectral Line Data- NIST atomic spectra database
- MPI-Mainz-UV-VIS molecular absorption cross-section database
- Splatalogue spectroscopic database
- Solar flux data, compiled from several instruments
- Spectro-photometric standard star listing
- Bass 2000 Solar Survey
- JPL Solar system simulator
- JPL Horizons ephemeris calculator
- JPL SPICE ephemeris library
- JPL SPICE ephemeris library most used
- IDL – Solarsoft
- IDL – Astrolibrary
- IDL – Coyote library & general helpful stuff
- Also of note, JD Smith’s Histogram Tutorial
- Python – SpacePY
- Python – SciPY
- Also of note in SciPY, reading IDL save files with Python
- VisIt data visualization software
- Paraview data visualization tools
- Extracting (thieving) data points from a graph
- More Data Extraction
- Vector graphics freeware
- SIMBAD – Many different search options….
- NED: NASA/IPAC Extragalactic Database
- National Virtual Observatory – Get all public data from any location
- SkyView – Get data from all public surveys, regridded to pixel size and scale of your choosing
- IPAC Cator catalog query – Query infrared survey catalogs
- NASA Exoplanet Archive
- ADS literature search engine
- HEASARC Coordinate conversion
- Montage astronomical image mosiac engine – preserved flux when changing coordinate systems
- Mendeley ‘ITunes for your PDF library’
- Interactive periodic table
- JPL time conversion tool
- IPAC Infrared Processing and Analysis Center – NASA’s home for all their infrared missions