These are my only two shots of Jupiter this year. At least for now. The opposition is occurring these days, but the weather these days and the low altitude of the planet are both unfavorable for a good imaging session.
A lovely session with the Sun today, both in H-alpha and in white-light. Two large and very active sunspot groups are still visible, one of which (named 2644) released a small eruption just as I was acquiring images.
Equipment: TS 115mm F/7 Refractor, Quark H-alpha filter, ASI 174MM, 700/2500 frames. Seeing 6/10.
A comparison of the white light view and the H-alpha one:
A short animation spanning 27 minutes, showing the evolution of the small eruption and the plasma traveling along the magnetic field lines:
A filmstrip from the above animation:
And an image of AR 2645, the largest of the two sunspot groups visible on the Sun these days:
This is one shot I was planning to acquire for some time now. It shows some superbly aligned galaxies from the Virgo galaxy cluster. More about it here.
The image was acquired under rather dark skies near Runcu Stone.
And some identified objects:
My first transit of the ISS over a celestial body for 2017. The celestial body this time was our Moon. I’ve observed this transit together with my wife and a few other enthusiasts under a very transparent sky, with the Sun still hanging above the western horizon at the time of the transit. As for almost all these events, I had some issues with the acquisition, but the end result shows the shape of the Space Station nicely. Equipment: 115mm F/7 APO Refractor, 2.5x Powermate, ASI 174MM with UV/IR cut filter.
And a three-frame sequence:
And a better processed image:
One image of a superb edge-on galaxy: Messier 104, or better known as the Sombrero-hat galaxy” (“Sombrero” for short).
This image was exquisitely hard to acquire and process due to the low altitude of the object, lots of light pollution, bad seeing, and some wind. The image was acquired with the 355mm F/4.5 Newtonian, Baader MPCC, ASI 1600MM with no filters. 1500 frames, each a 3 seconds exposure.
Just a few days ago, comet 41P passed near two deep-sky objects in Ursa Major: planetary nebula M 97 and galaxy M 108.
The field of view through the selected instrument was a bit to small to capture both these objects and the comet, so I’ve made a choice and the final image shows comet 41P and M108.
Some of the acquisition settings were a bit off (plus, I did not acquire dark files…), so a lot of noise is present in the shots.
And a negative version which better shows the extent of the comets coma:
Another view, this time focusing on the comet only: