How to Format Data from the USNO

AAVSO Areas of Interest

The American Association of Variable Star Observers (AAVSO) is an international non-profit organization dedicated to variable star research.There are literally hundreds of thousands of variable stars and professional astronomers do not have the time or resources to...

Understanding the 6th Orbital Catalog

When the WDS has a proposed orbital solution, it is added to the 6th Orbital Catalog. All orbits are graded, and only those judged of highest grade for each system are included in the published Sixth Catalog. If two orbits for a given system are judged to be of nearly...

Catalog of Rectilinear Elements

Many systems in the Washington Double Star Catalog have shown significant relative motion since their discovery. The Catalog of Rectilinear Elements provides linear fits for those systems whose motion does not appear to be Keplerian. While a few of these may in fact...

SIMBAD

This lesson will focus on SIMBAD. This catalog can be accessed via two methods: CDS and Stelle Doppie. Information that can be accessed is: Stellar data and summaries and Publication information.

Online Catalogs Overview

This lesson will highlight the various online catalogs that can be useful in the course of your Astronomica lResearch. While not mandatory for the introductory paper, these resources should be considered for developingan above average paper and should be included in...