[John W (John Wilkinson)]

8th Feb.There is a nice large sunspot group AR3576 that is currently travelling across the Sun's disc (E to W). I measured it this morning at approx. 145,000 km across x 72,400 wide. The first and second images shows it and the other sunspots at 540 nm. The third image shows the eastern sector of the Sun and AR3576 at H alpha (656 nm) wavelength. All images are single exposures with a Canon 550d. Thanks for viewing.