Back, after a long pause, with some images of Io transiting on Jupiter. During the imaging session (~ 20:40 UT / ~ 22:30 UT), switching between mono and RGB at different magnifications did allow to sh...

Around the center of the solar disk, the large, arc shaped filament between AR 3932, AR 3933, AR 3928 and AR 3927 it's still clearly visible: same for the plages around them. This area has been imaged...

Three images of the solar disk, acquired using three different filters: O-III, Ca-K and the solar ERF, mainly used with the H-Alpha Quark. The idea was to compare the results with the simple white lig...

Six images of the Sun in H-Alpha. During that session, the solar limb didn't show any relevant prominences, so all the data was focused on the active regions. Among them, a nice and large filament flo...

Following the O-III and Ca-K images of the Sun, a series of images in H-Alpha light. Since the introduction of the new equipment, an overall improvement can be appreciated in every image: a better sam...

First imaging session after a long pause, introducing some new equipment: mono camera (Apollo - M), electronic focuser (ToupTek AAF) and new refractor (Tecnosky Planet 102 f/11 ED). This session was a...

Last session in august 2024, before a long pause until december. The weather conditions were not optimal: the processing of each file did require some extra (and "painful") work, specially to highligh...

Two images of the Moon, acquired in the early morning, just before to set up the H-Alpha equipment to image the Sun. In the first one, the complete thin waning crescent. Among the main features, the O...

Two more images from the recording session on 30 august. Each image is a mosaic composed by two panels. The Ha filter was set up to be off-band around the 656.28 nm wavelength, on the +5 and -5 Å. win...

On that day, the main feature was a series of some prominences, mostly on the western solar limb where, looking at the biggest ones, pareidolia could show a gazelle, a tree and a crab. AR 3807 was pla...

To see the images in full resolution and their acquisition details click on the link to the album . A view of some nice features on the solar chromosphere. The last days of august 2024 were quite clou...

On December 24th, AES Andes, a subsidiary of the US power company AES Corporation, submitted a project for a massive industrial complex for environmental impact assessment. This complex threatens the pristine skies above ESO’s Paranal Observatory in Chile’s Atacama Desert, the darkest and clearest of any astronomical observatory in the world [1]. The industrial megaproject is planned to be located just 5 to 11 kilometres from telescopes at Paranal, which would cause irreparable damage to astronomical observations, in particular due to light pollution emitted throughout the project’s operational life. Relocating the complex would save one of Earth's last truly pristine dark skies.