Lyon-Meudon Extragalactic Database
Encyclopedia
The Lyon-Meudon Extragalactic Database (LEDA) was a database of galaxies
. Created in 1983 at the Lyon Observatory, it contained information on more than 60 parameters for about 100,000 galaxies. In 2000, the database was merged with Hypercat and became HyperLeda. It now contains information on over 3 million celestial objects, of which about 1.5 million are galaxies. The database allows astronomers around the world access to the information.
Galaxy
A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component tentatively dubbed dark matter. The word galaxy is derived from the Greek galaxias , literally "milky", a...
. Created in 1983 at the Lyon Observatory, it contained information on more than 60 parameters for about 100,000 galaxies. In 2000, the database was merged with Hypercat and became HyperLeda. It now contains information on over 3 million celestial objects, of which about 1.5 million are galaxies. The database allows astronomers around the world access to the information.
External links
- HYPERLEDA HyperLeda: A database for physics of galaxies
- LEDA data base LEDA Database Reference Page