2012 programme

Sat 7th 12:00-12:30
Venue: 
TBA

Measuring double stars

Tim Napier-Munn

AAQ

The AAQ Double Star Section is engaged on a programme of measuring neglected southern double stars. This paper describes two methods which have been employed, one using a calibrated reticle and the other the astrometric measurement of images taken specifically for the purpose. The errors and productivity of the two methods are compared, and some examples are given of recent measurements of interest including the discovery and measurement of a new double in the constellation Ophiuchus.