Part 4: Kitt Peak National Observatory

20131130

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The Trip

It had been years since we visited Kitt Peak National Observatory (KPNO).  KPNO is a world class facility and well known in the astronomy community and housed some of the best equipment on the planet at one point.  Currently the facilities in Chile host the world's premium instruments.

The photos below are what we saw.

At the junction of the Kitt Peak road and Ajo Road we spotted this huge custom trailer used to transporting large telescope equipment up the narrow road.  Note that the rear wheels can be steered hydraulically allowing the trailer to navigate the tight turns on the steep 8% grade.

The original dirt road was very steep and is visible on the far ridge.  This road was used for construction of the initial site back in the early 1960s.

From a pull-out on the grade we got a view looking north toward the Tohono O'Odam town of Santa Rosa.  Santa Rosa is at the end of the straight road.  Note the background haze, probably from Phoenix or Los Angeles.

The light spot near the top center of the photo above is another small indian village.  The light spot is the village water tower.

From another turn-out we could see Sells, AZ in the far distance.

To the southwest rugged mountains were visible through the haze.  Note the flat-top volcanic plug which is in Mexico.

Our first view view of the huge Mayall 4 meter telescope.  Also visible is the 2.3 meter Bok Reflector.

From left to right:  3.5m WIYN scope, 0.4m visitor scope, 0.9m WIYN, 2.1m scope.

South along the ridge is Baboquivari Peak, the first sacred mountain of the Tohono O'Odam which is about 7700 feet in elevation.

This shot shows most of the instruments on the mountain.

The 4m Mayall scope is huge.  One thing that most of the instruments on the mountain have in common is that they use liquid nitrogen to cool the sensor arrays.  KPNO uses it in copious quantities.

We paid extra for a tour of the 4m scope.  As we walked over to the scope, we could see both the 4m scope (in the tall structure) and the 2.3m Bok Reflector in the smaller building.

The external structure of the Mayall is massive. The bottom of the rotating dome is about 80 feet above the foundation and must be capable of withstanding the powerful winds present at the top of the 7,000 foot peak.

The view from the access road to the 4m scope was awesome.  There was substantial ground-level haze in the air.

Looking north toward Phoenix was just as hazy.

The McMath-Pierce Solar Telescope structure.

The Tohono O'Odam worship the gods in mountain.  Modern science worships the gods in the white structure.

The inside of the Mayall scope building was very dimly lit.  The photo above is a 1/2 second exposure at ISO 800 and f/4.  The image stabilization in the Oly E-M1 camera did an outstanding job of damping out motion blur.

Panorama generated with the Fuji X100S.  Click on photo for full size file.  This panorama is centered to the northwest.  Click "back" when done.

This panorama is centered looking east.  Click on photo for full size file.  Click "back" when done.


KPNO is worth a visit if you are in the Tucson area and are "into astronomy".


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Photos and Text Copyright Bill Caid 2013, all rights reserved.
For your enjoyment only, not for commercial use.