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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
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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
On the 9th seeing was not too good, but this image does show up some of the clefts in Hevelius and the irregular dome in Grimaldi. The vague gash extending from Riccioli away from the terminator is known as the … Continue reading
I thought I should take Jacques with a longer focal length than I used on August 05 with the Hyperstar, so I imaged it here with my 100mm f/9 refractor at prime focus with a Canon EOS 400D (as it’s … Continue reading
This was sufficiently low when it got dark that I had to start cutting the hedge back to get at it with the 100mm refractor in the main observatory. This scope with a DSLR at prime focus framed it well. … Continue reading
Here’s Comet Jacques from last night. 20 one minute exposures stacked on the comet. There are some colour gradients in the background that I haven’t been able to correct, I possibly need need better flat fields. No trace of a … Continue reading
Here is the result of my Jupiter imaging early last night. Ropey seeing, but something salvaged. Two different presentations of the same data: the RGB shows truer colour, but the LRGB gives better contrast. … Continue reading