But as the sky cleared I decided to also have a go at some tracked shots and I was quite pleased to get my first image of the Ring Nebula (Messier 57) even though it's far from perfect. The Ring Nebula (is a planetary nebula in the northern constellation of Lyra. Such objects are formed when a shell of ionized gas is expelled into the surrounding interstellar medium by a star at in the last stages of its evolution before becoming a white dwarf.
This is just a single tracked shot taken with a 500mm f/4 lens plus 1.4x teleconverter on a crop sensor camera - 700mm ISO 640 f/8 @ 3 minutes. Yes, it really is that blue.
This is just a single tracked shot taken with a 500mm f/4 lens plus 1.4x teleconverter on a crop sensor camera - 700mm ISO 640 f/8 @ 3 minutes. Yes, it really is that blue.
Bode's Galaxy is a spiral galaxy about 12 million light-years away, with a diameter of 90,000 light years, about half the size of the Milky Way, in the constellation Ursa Major. Due to its proximity to Earth, large size, and active galactic nucleus (which harbours a supermassive black hole), Messier 81 has been studied extensively by professional astronomers.
The Cigar Galaxy is a starburst galaxy approximately 12 million light-years away in the constellation Ursa Major. A member of the M81 Group, it is about five times more luminous than the whole Milky Way and has a centre one hundred times more luminous than our galaxy's centre.
Arcturus (below) is a red giant star in the Northern Hemisphere of Earth's sky and the brightest star in the constellation Boötes (the herdsman). Arcturus is also among the brightest stars that can be seen from Earth. Astronomers say Arcturus will end up as a white dwarf at the end of its life.
Vega has been extensively studied by astronomers, leading it to be termed “arguably the next most important star in the sky after the Sun”. Vega was the northern pole star around 12,000 BC and will be so again around the year 13,727. It was one of the first stars whose distance was estimated through parallax measurements.
But by now it was starting to get light so I struggled getting a decent image of these two galaxies. This is definitely a deep sky object to which I will be returning.