The VLA at Night

Two weeks ago today, my husband went back to the Very Large Array for an evening of photography (see earlier post here for out tour of the VLA during the day). The class was double the usual size because one of the previous nights had been cloudy – i.e. the whole point was to get stars in the photograph and that couldn’t happen on a cloudy evening. They had a short lecture to explain the process and then headed out to position themselves around the same radio telescope that we saw during the day.

They took pictures with 30 second exposures so that the stars were still points of light rather than trails…and the dish was ‘light painted’ during that time so it would be clearly visible in the pictures.

The sky is very dark in that part of New Mexico and the Milky Way looked more like I remember it as a child. My husband was pleased with most of the pictures he got and he picked his favorite for me to include with this post.

If we go to the Festival of the Cranes at Bosque del Apache again, he’ll take the advanced version of the course!

Arecibo in 1978

I saw a story about a large radio telescope being built in China recently and it reminded me of the one in Puerto Rico – Arecibo. My husband was there in September 1978 – just a few months after he went to Wallops and Chincoteague. It was all part of his first years as a graduate student. The trip he made to Arecibo was the longest travel-for-work either of us ever did and we were a little discombobulated by it; looking back I wonder why I didn’t take the opportunity to take some vacation and see Puerto Rico; I suppose that we were so unsure of our financial situation that we didn’t even think about it. He brought back a lot of photographs of the place. Look closely at this first picture and note the people on the structure (upper left) and in a small enclosure evidently hoisted to allow work on the structure (center).

There are some pictures of 1978 vintage computers.

Then the view looking down to the dish at an angle

And to the very center.

Underneath the vegetation is kept at bay.

At that time – I had never seen variegated croton. My husband brought back pictures and some dried leaves as a souvenir.