Double Stars

This is a new page (June 2002) to record attempts at resolving various double stars

IZAR, Bootes   3-Jun-02
Separation 2.6 arcseconds
IZAR is magnitude 2.5, spectral class K0, colour index 1.13
it's neighbour is mag 4.66, spectral class A0, CI 0.16

Video acquired using a Panasonic CCTV camera at f20 on the LX-200, video capture at 320x240 pixels but final results resampled to x4 magnification.
Processing of around 300 frames in Astrostack (left hand image) and Registax (right hand)

The colours obtained show fair agreement with the theoretical RGB values for the spectral class - see Mitchell Charity's colour index page

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Page content 2001-2007 Mike Tyrrell