Tonight’s Lunar Eclipse

The Moon blood red because it's completely inside the Earth's shadow.
September 27, 2015

The Canarian Tourist Board will be live streaming tonight’s lunar eclipse at Just to remind you, the moon is at almost its closest approach to the Earth, so it’s will be a supermoon – noticeably bigger than usual. There are two parts to the Earth’s shadow: the penumbra is the outer part, and the umbra is the much darker inner part. Penumbral Eclipse begins 28 Sep, 00:11:47 The penumbral…


Blood Moons

The Moon blood red because it's completely inside the Earth's shadow.
August 21, 2015

Total Lunar Eclipse April 15th 2014, as seen from the Mount Lemmon SkyCenter. In the early hours of September 28th the moon will plunge into the Earth’s shadow and turn blood red. It’s a perfectly normal event, produced by the combined orbits of the earth and moon and the effect of the Earth’s atmosphere bending the sunlight like a lens, but it’s dramatic and spooky, and if you didn’t…


Painting a telescope

Painting the tower of the Swedish Solar Telescope, Roque de los Muchachos Observatory, La Palma
August 7, 2015

Yesterday I showed a group around the WHT, and I noticed that the Swedish Solar Telescope is being repainted. (Follow the link for more about the telescope.)


What to Feed Lizards on La Palma

Female Canary wall lizard with watermelon
August 3, 2015

Yesterday I discovered that the local lizards (Gallotia galloti palmae) are fond on watermelon on a hot day. Figures. Unlike most lizards, they eat quite a lot of plants, especially ripe fruit, to the point where they can become a nuisance in vinyards. I recently discovered that we only have one species of small lizard here. What I thought were two species is one, with different colours for males and…


A Breathtaking Window on the Universe

The front cover for 'A Breathtaking Window on the Universe'
August 2, 2015

Yes, it’s my book. “A Breathtaking Window on the Universe: A guide to the observatory at the Roque de los Muchachos SECOND EDITION” By Sheila M. Crosby (Non-Fiction Paperback) 164 pages (16 more than the first edition) Welcome to the Roque de Los Muchachos, where 15 telescopes from 19 nations use the best night sky in Europe to explore the cosmos. Find out what it’s like to work in this strange…


“Astrofest La Palma” opens the doors for registration.

Nightscape conference poster
August 1, 2015

  From 25th September 2015 to October 9th, the island of La Palma in the Canaries will host Astrofest, a festival of astronomy, with activities for all ages and knowledge levels. There will be an international conference for astrotourism professionals, a spectacular total eclipse of the moon, an international conference for nightscape photographers, and a night photography masterclass. You can find more details and register for all these events at…