61 Cygni Proper Motion 2013 to 2022

Aberkenfig, South Wales

Lat +51.542 Long -3.593

 

A sequence of images taken over a period of 9 years which display the proper motion of this well known binary star system. It's apparent movement is about 5" (arc seconds) per year.

 

Images captured using a Skywatcher 254mm Newtonian with a modified Philips SPC 900NC Webcam. Exposure time 10s on LX Mode. The telescope was initially mounted on an EQ6 HD then EQ6 Syntrek for the later captures.

 

I am pleased to say that the webcam used is still in working order after all these years.

 

Hot pixels removed before final levels slightly adjusted with G.I.M.P.

 

G.I.M.P. layers tool used to align, slightly crop, arrange images and add annotations.

 

Another page from my observations log.

 

Best viewed in intermediate expanded mode.

 

Webcam Settings using an old version of Sharpcap:

[Philips SPC 900NC PC Camera (LX Mode)]

Resolution=640x480

Colour Space / Compression=YUY2

Exposure (s)=10.0466495818267

Output Format=PNG files (*.png)

Brightness=90

Contrast=40

Saturation=72

Gamma=3

ColorEnable=255

BacklightCompensation=0

Gain=30

Done