Databases:

ADS - NASA Astrophysics Data System

astro-ph

NED - NASA/IPAC Extragalactic Database

Centre de Données astronomiques de Strasbourg (CDS)

• Simbad
• VisieR

Bright Star Catalogue

Ovid

Calculators

NED Coordinate Transformation

Magnitude/Flux Converter

Astro-Physical Calculator (Chris Dolan page)

ESO exposure time calculators and simulations

Calibrators

CalVin (VLTI Calibrator Selector)

VisCalc (VLTI Visibility Calculator)

Charm 2

News

Spiegel Online - Weltall

The Cosmic Mirror

Astronomy Picture of the Day

International Astronomical Meetings List

Observatories

ESO

SAO

Steward Observatory

MMTO

LBTO

Space Telescope Science Institute

Organizations

Deutsche Astronomische Gesellschaft (AG)

FRINGE

MIDI

JMMC

AAS - Job register

Fachgruppe Physik/Astronomie - Universität Bonn