Since I got there early, I got a chance to try to photograph the nearest star – our Sun, through a small telescope with a filter which lets through a wavelength called H? (pronounced H alpha). It was tricky. I’m pretty short sighted, and I can’t see well with my glasses squdged up against the viewfinder. For normal stargazing, I take my glasses off and refocus the telescope, but…
The Alma radio telescope took this amazing picture of planets forming around the sun-like star, HL Tau. This is a baby star, less than a million years old, which is 450 light years from Earth in the constellation Taurus. And the disc of dust and gas around the star is already forming planets and asteroids – that’s what makes the dark rings in the brighter dust. It’s the first…
This amazing picture of stars being born inside a nebula was taken by Daniel Lopez using Grantecan. Near the centre of the picture is a dark red spot – that’s the new star which shines mostly in the infrared. The butterfly shape is a large disk of dust and gas orbiting the star. The gas near the star shines because it is ionized (like the inside of a flourescent…
A new supernova has been spotted just 12 light years away in M 82, the Cigar galaxy, which is between Ursa Major (the Great Bear or Big Dipper) and Ursa Minor. It’s a type 1a supernova, which is what happens when a white dwarf sucks gas from a companion red giant, until the white dwarf reaches 1.4 solar masses (the Chandrasekhar mass) when the core becomes hot enough to…
The Perseids are usually the best meteor shower of the year. The peak will be on Sunday, with perhaps as many as 100 shooting stars per hour (although any meteor shower is best after midnight). In Spain, this shower is known as las lagrimas de San Lorenzo (the tears of St Lawrence) because it happens near the feast day of St. Lawrence the martyr. Fuencaliente town hall and island’s government…