Saturday, June 23, 2012

Some Pics From An Evening on Kitt Peak

I was up on Kitt Peak for a private event last night. It was held at the picnic area and I had never had the opportunity to take night pics from there so I snuck away a couple of times to get some shots.  The picnic area is located by the Very Large Baseline Array (VLBA) dish. The VLBA is a network of 10 identical radio telescopes stretching from the U.S. Virgin Islands to Hawaii. The observations from all the scopes are combined to give the resolution of one big scope about 5,000 miles across. The VLBA dish is right behind the picnic area (if you visit Kitt Peak, go to the picnic area to get the best view of the dish!)
Sunset was a little hazy, but I noticed a temperature boundary as the Sun was setting. Note the small mock mirage (the little piece of the Sun breaking off at the top) that formed. I saw a couple of others in the process of forming, but they were small and the small ones are difficult to time your pics to get them (unlike the big ones I got a few weeks ago!)
You might notice it looks a little hazy out there. Lots of haze scatters shorter wavelength light making a green flash less prominent, but didn't totally obscure it tonight.
Shortly after sunset, there was a nice gathering in the west. The crescent Moon was joined by (from left to right) Mercury, Pollux and Castor.
After it got dark, I walked by over to the VLBA dish and got a shot of a nice starry sky behind it. Look closely and you can see the 4 meter telescope dome in the background. The lights you see behind the mountain come from Tucson, over 50 miles away.
Finally, as it got darker, the summer Milky Way rose above the eastern horizon. I had to look southeast to see it and couldn't find a trial to get the VLBA dish in the foreground that didn't lead off the side of the mountain. I still got the four meter and a couple of others in this one. The tree in the foreground was illuminated by light coming from the bathroom window. I went inside to try and turn out the lights and there was no light switch! I assume the mountain staff know how to turn it off, but seems like a design oversight to not give people the option to turn it off themselves! Fortunately, it wasn't too bright at this distance to hamper the photography and in the end, I kind of like the way the tree came out.
Reprinted with permission from the Half-Astrophysicist Blog.

6 comments:

kkdither said...

Great shots, hale! I especially like the last one with the Milky Way. We have way too much light pollution around here. We don't have the opportunity to see that.

OrbsCorbs said...

I agree. Gorgeous photos, hale.

lizardmom said...

love all the stars, if only we had views like that here!

drewzepmeister said...

Excellent photos hale!

legal stranger said...

What great pictures, thanks for sharing, I wonder what Kitt peak may now look like with all of the fires surrounding the area.

hale-bopp said...

These pics were taken Friday night so Kitt Peak looks pretty much like that :)

There are not many fires in this part of the state. The fires in Arizona are up north between Globe and Payson. There was a small fire on Baboquivari (the next mountain over from Kitt Peak) but it didn't spread and caused no problems. We can get smoke here when the winds blow in certain directions. We had some pretty smoky days caused by the Gila fire a couple weeks ago. The Gila fire is in New Mexico and you could see the smoke on the satellite photos going straight over us from that fire.