MagAO-X 2019B Day 7: The Eyepiece

Today, we present the eyepiece of MagAO-X!! Back in the day, astronomy was only ever done with an eyepiece. But now, we have far better technology than our own eyeballs to do science. If Galileo or Edwin Hubble were looking down at us, they would probably be jealous.

Hubble looking through the eyepiece of the 100-inch telescope at Mount Wilson Observatory in 1922

Nowadays, telescopes rarely have eyepieces, because the instruments use science cameras to take data instead. But if an instrument does have an eyepiece, it is probably just for fun, so we can feel like Hubble looking through a telescope with our own eyes. That is pretty much why we have an eyepiece for MagAO-X! So that we can see the power of extreme adaptive optics with our own eyes…it’s pretty cool!

The MagAO-X eyepiece was generously donated by the Close family, and it is a work of art. It has a shiny plaque that mimics the traditional tailpiece of a classic telescope.

Laird standing next to his beautiful donation.
Tailpiece of an 1882 6-inch Clark Telescope, very similar to the Steward Observatory 1888 5-inch Clark telescope.

Today, Laird, Maggie, and I tweaked the alignment of the eyepiece optics to make sure it is ready for our next nights on-sky (December 7 and 8). We are planning on using it to see the power of MagAO-X with our own eyes! I took a picture with my smart phone through the eyepiece with our internal light source on. The rainbows you see in the image are due to our 2,000 actuator deformable mirror. There are so many actuators over a small distance that the mirror acts like a diffraction grating!

A smart phone image taken through the eyepiece.
Eyepiece cover.

Jared and Joseph did some work on the electronics rack today. Now we have one additional GPU in the RTC specifically for predictive control calculations.

For the rest of the night, Jared and Olivier continued working on closed loop calibrations and predictive control while Laird, Maggie, Kyle, Joseph and I worked on other MagAO-X stuff.

Jared and Olivier working on AO stuff.
Olivier and his gourmet triple-decker cheese sandwich.
Us working in the break room.
Dr. Close’s “office.”

It is officially Christmas in Chile! They put up a Christmas tree in the lodge.

Christmas tree in the lodge.

Also someone has been feeding one of the zorros, so we have a friendly fox that hangs out by the lodge now. I managed to capture a picture of him hanging out.

The friendly fox.
View of the South from the lodge. GMT site is on the high peak to the right!

And of course, a picture of the sunset for the beginning of our “day.”

Another beautiful sunset at Las Campanas.
The beginning of our day.