The Sun has quite a number of active areas on it at the moment, but only smallish ones. Here is the part of the disk that I could capture with the Grasshoppper mono camera and 50 inch focal length telescope, … Continue reading
Category Archives: Sun
This could be subtitled ‘goodbye to AR 2192’, as the great spot approaches the limb. … Continue reading
Seeing very poor today in the afternoon, but I took images of the spot in IR and H alpha, which I have put side by side here, though the quality of the H alpha image doesn’t really justify this image … Continue reading
AR2192 in reasonable seeing in IR light. … Continue reading
Here’s my take on the giant sunspot AR 2192. The features I find striking here are the linear streakiness seeming to emanate from a point W (celestial) of the group, manifested in its upper part, and the slightly lighter bridge … Continue reading
Here are some large images I produced in the process of writing an article on ‘Imaging the Sun in Narrowband’ for the December 2014 issue of Astronomy Now. The first is a 3-part mosaic taken with a 100mm f/9 telescope, … Continue reading
Here’s a white light whole disk image from the 8th and a more detailed IR image from the 22, that I produced in the process of doing an article for the November ‘Astronomy Now’.(Click to enlarge.) … Continue reading
I managed to catch an astonishingly fast-moving prominence here. I imaged it for 1 minute runs at 5 minute intervals, but really this was too slow, it was changing so quickly, that shorter runs might have been better. It was … Continue reading
Here’s some images of a rapidly changing nearly-detached prominence on the Sun’s eastern limb. Taken with at a focal length of 1440mm with a 100mm refractor, double-stacked with Lunt 50mm filters using home-built adaptor, plus 1.6x Barlow: a nice long … Continue reading
Playing solar catch-up, here’s the Sun in H alpha and infra-red on the same day in June. The spot group shown in the IR image corresponds to the active area right of centre. Seeing was poor. (Click on images to … Continue reading