Double star measurements

Double stars observations

I already made a two entries about observing and measuring double stars (here and here). Over last one year and half I had a few sessions with this…


REDUC for double stars

Reduc description Not so long time ago I made an entry about measuring double stars with AstroImageJ software. Then I found out about dedicated…


Measuring doubles

Astrometry with CCD (or CMOS) cameras can be very useful tool for measuring separation and position angle of double and multiple stars. When…