Research links

Set time, date, aiming point, orbital elements to track a comet or asteroid, and many other settings. You can bookmark your searches, allowing direct access to your preferences.

Get object data, cross-identifications, measurements and bibliography for deep sky objects. You can query by coordinates, object name, and other criteria.

Virtual Observatory to see images of any part of the celestial sphere at wavelengths from Radio to Gamma-Ray.

Collaborative effort between astronomers around the world (both professional and amateur) to identify all of NGC and IC objects, building on the original notes with contemporary astronomers contributions. It collects images and gather data for the objects - classifications, positions, distances, diameters, colors, position angles, magnitudes, etc.