Double Star Section
The Double Star Section exists to help and encourage observers interested in the observation of visual double stars. The specific objective is to make measurements of binaries with micrometers and to publish the results.
To this end the Section has recently published its 24th Circular which contains measures of visual double stars using micrometers, CCD cameras and on-line astrometry as well as a discussion of the nature of a possible visual binary system. A number of new double star systems have been identified. The total number of double star observations published in this series (including CCD and photographic measures) is about 46150.
Copies of the Circulars are sent to main centres of interest in professional double star astronomy i.e. the United States Naval Observatory and the Ramon Aller Observatory in Santiago de Compostela.
Bob Argyle - Double Star Section Director
In this series of short articles, a double star in both the northern and southern hemispheres will be highlighted for observation with small telescopes, with new objects being selected for each month.
For those that use SkyTools observation planning software
We have a plan available covering all the Double Star of the Month pieces for SkyTools 3 users. We will try to keep this updated as new double stars are added.
The Section publishes these Circulars which contain measures of visual double stars using micrometers, CCD cameras and on-line astrometry as well as a discussion of the nature of possible visual binary system.
Electronic versions of all the Double Star Section Circulars (DSSC) can be downloaded in PDF format from this archive.
Double Star Section Resources
- An excellent animation of the orbital motion of Mizar A by Dr. Christian A. Hummel (ESO) using data from the Navy Precision Optical Interferometer (NPOI).