If you live somewhere where you can see part or all of the transit, -I hope the clouds stay away for you. REMEMBER NOT TO LOOK DIRECTLY AT THE SUN. If you’re on the wrong part of the planet (like me) or unlucky with the weather, here’s some places to watch it live on the Internet for free. Slooh.com will be broadcasting ten feeds of the Venus transit live from…
The William Herschel Telescope is 25 years old today – first light was the 1st June 1987. For many years the Herschel was the biggest optical and infrared telescope in Europe, until Gran Telescopio Canarias opened in 2009. It’s main mirror is 4.2 m or 165? across which was huge when it opened, although that’s medium-sized these days. The telescope has so many different instruments that it’s been compared…
On on 5 and 6 June 2012, the planet Venus will pass in front of the sun in what’s called a transit. The last one took place in June 2004, and the next one won’t happen until December 2117. If you’re in the USA or Canada, the transit will be in progress at your sunset on June 5th. If you’re in the UK or Germany or North-east Spain, the transit will…
Francesco Pepe invited me to see inside the HARPS spectrograph. I was very lucky, because the enclosure was closed for the inauguration, and closed again (probably for years) soon after I took these photos. Of course I had to wear special over-clothes to prevent dust getting into the instrument. The top photo shows the grating, which splits the starlight into a rainbow, and the bottom one shows the collimator,…
The HARPS-N spectrograph was inaugurated on April 23rd. Here’s some photos. This write up is better late than never, I hope.
Palacio Salazar in Santa Cruz de La Palma is hosting a great exhibition on the Earth and Mars until May 26th. It features lots of great photos of Mars, and explains the similarities and differences in geology, atmosphere and weather, and hydrology. Even better, they have a genuine meteorite from Mars. Did you know that a day on Mars lasts 24.6 hours compared to our 24? And the axial…