MagAO-X 2025B Day 13: Pesca la tua carta e vai!

Today people discovered I am just an average girl who loves astrology. No offense, but why having to choose between astronomy and astrology when – guess what – you can have both? Not only that, but I like to entertain myself in a variety of spiritual practices, for example, I am currently charging my tarot cards under the light of this gorgeous full Moon. My favorite childhood anime was Cardcaptor Sakura… What did you expect?

Since today marks the moment when everyone has arrived at LCO, and we are about mid-way, I have decided to proudly present the members of our group who joined the run this time, in Elena’s own special way.

The gorgeous full Moon that inspired today’s blog post. Photo credits to Miles Lucas

The girlies

Elena: Temperance
The creator of this bizarre blog post, carefully mixing science and magic, continuously balancing opposites: Enthusiasm VS crippling anxiety, aligning PIAA lenses to highest precision possible to mitigate pineapples.

Eden: The Star
Eden brings a delicate touch and kindness to anything she does. Carefully handling DM cables and the AO system, she is like the trump card of the group: Give her something do to and she will turn it to being successfully completed. Also, she gave us sparkles. Twinkle, twinkle.

Katie: 8 of pentacles
Katie is not afraid to handle delicate optics. With patience, firm hands, and arms that can extend for multiple hours in a row, she can manage any practical task the big bosses throw at her. Recently crowned the new manager of MagAO-X’s uninstall, she is ready to surpass master Laird.

Tiffany: 3 of pentacles
Tiffany is the new addition of the girlies group. She is carefully observing every move of the more experienced members to learn as much as possible about the delicate and complex system MagAO-X revealed to be.

American bois

Josh: The Moon
Josh is fighting against Zemax just like the dogs in this card bark at the Moon. But hey, at the end of the day, isn’t the Moon almost like a big form of cheese in the sky? Also, he loves sticks.

Parker: Strength
Parker befriended the donkeys and tamed the vibrations of the telescope. Hand-working and tireless, he is always down for a run up the hill or some benching. I only wish he could eat his food without mixing it all together in a disgusting mush.

They say life goes on after obtaining a PhD

Joseph: The Magician
Joseph is the wizard that installs the software on your computer. Knowledgeable and resourceful, he is full of tools and tricks to compromise the entire group and save the day approximately four times per day – one time for each element – just like an expert magician.

Miles: 2 of pentacles
Miles simply enjoys taking cute pictures of animals and stars. Two polarization states, one difference: Guaranteed success! He can also juggle pretty well (when he is not taking pictures and he is not sleeping).

Matthijs: The Sun
Matthijs was revitalized by vitamin D like never before in his entire life. Feeling the Sun on his Dutch face every day after waking up made him a new man. If only the cooks were not trying to poison him, he would have already solved every possible problem of MagAO-X.

Rico: Knight of wands
Rico has just arrived at LCO and has already observed closely how to drive the instrument. Inspired by our science, he has already planned to do some daytime engineering tomorrow to make his neural network smarter. Always moving forward!

The final bosses

Sebastiaan: The Fool
Sebastiaan is always in a good mood, even when he is extremely sleep deprived. He finds joy in the little things of life, like shaking the mouse and seeing the cursor becoming full screen size. He also loves to continuously start new adventures: He has endless hope and endless data to reduce, piled up since 2021.

Alycia: The Empress
Alycia knows everyone around and no one wants to mess with her. If something is not quite right, just let her know and she will have it sorted out. She is basically the true owner of this observatory. She says the word, and Chile answers.

Laird: The Hanged Man
Laird is the giant on whose shoulders we all stand. He has sacrificed himself again and again for the sake of MagAO-X: Positioning himself in the most bizarre ways – almost break-dancing – unscrewing countless nuts, and making peanuts disappear throughout the years.

Jared: Universal Judgement
Jared has to manage all this circus. That’s quite the task, especially when there are so many things going on at the same time. But hey, remember? Having more things just means… Peeking from the sky with a huge trumpet (?) deciding when people can finally get a PhD.

Special

Vizzy: The Hermit
Vast mountains, rocks, and silence, under the perfect night sky. This, the setting where vizzy spends all her time pondering about the meaning of life. The Universe made her a cute, little animal without a way to communicate with us humans, because it knew she would be too powerful otherwise.

Fun fact

Did you know that Black Jack’s mother, Judith Love Cohen, was an aerospace engineer that is credited to have helped save Apollo 13? Shooting for the Moon.

Song of the day

The Metal – Tenacious D

MagAO-X 2025B Day 4: Small details can change everything

Welcome to the first blog post of this run from the Leiden team! It’s great to be back up at LCO. Matthijs and I are starting to feel the seasonal depression leaving our bodies thanks to the good old vitamin D we are soaking up these days. Incredible what such a small thing is capable of. Speaking of which, today we talk about many small things that make a huge difference: From optics to spiders. There must have been some confusion lately… Sometimes even small details can change everything! For every picture of today’s blog post there is something right or wrong. Check hover text for the solution.

Many new additions to MagAO-X today. Last night, after a long journey and before going to sleep, I have installed my new PIAACMC masks. I am very proud of my cute little babies, and I hope I will show you some nice results in the next nights of observations. Katie and Laird have worked relentlessly today and brought important improvements to the instrument! First, they have installed a brand new periscope mirror (ttmperi) that is now much smaller and has a much higher stroke. Katie designed a stage plate so that our beloved heroes, Sebastiaan and Laird, won’t have to walk up the platform anymore between observations to pull in or out a mirror to use VIS-X: Now this can be done automatically with a stage that moves up and down! They have also added an old telsim aperture stop (that re-creates the Magellan aperture) and rotated it so that the lab and on-sky alignment are much more similar and consistent. Finally, they have put in a new mount, new filter, and the shutter for LLOWFS (Lyot low order wavefront sensor) with an extra contribution from Parker. What to say, team… Excellent work!

We have also found some small friends (but not the ones y’all were hoping for) around the observatory today. Let’s review them together.

Spidey though he was safe on an on-axis telescope
We have found this spider while working in the common room today, but is it real or fake? On the left, Joseph bravely inspecting the mysterious creature. On the right, zoomed evidence picture.

And now we can really say it, Katie has become the queen of the 2025B MagAO-X upgrades. Really bopping to the top.

At the end of the day, Miles and Matthijs also took lots of flat field data (Miles is still working as I am writing).

All the many recent “small” changes to the instrument added up, leading us to have to refocus the science cameras on the coronagraph masks, so tomorrow we will have to work on that. We only have a few more hours before we start packing up the instrument and move it up the mountain top. Stay tuned for the next blog post to see MagAO-X bop to the top as well together with Katie!

Literally no solution here, we are just cute

Fun fact of the day

Before being an astronomer I was an aerospace engineer. Before I was an aerospace engineer I studied languages about 16 hours per week in high school (yeah, I changed my mind quite a few times in my life). This means I know random facts about literature from different countries. So, today I’m gonna share with you my favorite literature+sciencey fun fact: The etymology of the term “quark”! It comes from one of my favorite writers of all time, James Joyce. In his book Finnegans Wake (which, by the way, still keeps professors and translators awake at night after more than a century!!) he writes:

"Three quarks for Muster Mark!
Sure he hasn't got much of a bark
And sure any he has it's all beside the mark."

This book is full of puzzles, jokes, puns, words spelled wrong, and words literally invented by Joyce that he doesn’t bother to explain – sometimes they can be understood from the context. This is why this book is very difficult to understand or translate. Again, very in line with the theme of my blog post today…

The discoverer of quarks found this term in the book and decided to use it to name his newly-found particles, since you need three quarks to make a proton or a neutron!

Song of the day

I have recently seen Radiohead live, and I must confess this song was my inspiration for the theme of the blog today. But for my elite Radiohead fans, I must also say something like Daydreaming (gorgeous song, among my absolute favs) or Fake Plastic Trees, could also do with today’s theme.

2+2=5 by Radiohead

MagAO-X 2025A Day 17 – The ballad of the guac and the Yorch

At the usual Chilean diner 
Satisfying our guac desires, 
Huge chips to dip at hand 
To face a long night ahead. 

“My comrade won’t join tonight” 
Said Sebastiaan with a sigh, 
“I shall bring him food at once, 
For EFC to have a chance”. 

As he ordered a full plate 
“His name is Josh”, he said. 
Yorch Clay – wrote the chef, 
For he did not understand.

Then everyone followed the captain 
And drove or walked up the mountain 
To observe the target PDS 70 
Which is forcefully our favorite. 

To set up for observations, 
One must meet some expectations 
This is why, behind the screen 
A known face started to peer. 

Are you pushing the right buttons? 
To ensure everything functions 
Jared glances, with narrow eyes, 
Guarding Josh as he drives. 

If you’re wrong you will hear 
“Well, this little maneuver 
Is gonna cost us 51 years!” 
And you don’t want this in your ears. 

Ps. The movie quote in the poem is from Interstellar, one of my favorite movies of all time!

Song of the day

Every Breath You Take – The Police

MagAO-X 2025A Day 10: It’s so over

While most of our heroes were still sleeping, Sebastiaan and I went up the telescope to perform some EFC calibration. At first the dark hole digging didn’t seem to work, and it took quite a bit to fix it. Fortunately, just before dinner time we finally managed!

We are astronomers and we are digging a hole DIGGY DIGGY HOLE

Tonight, the MagAO-X team experienced yet again an hard truth: Bad nights are part of the game. This is why the title of this blog post is unfortunately the opposite of my previous one. If you want a visual representation of this, check this out:

Thanks to Joseph Long for this pearl

At the beginning of the night, Sebastiaan tried to perform EFC on AFLep, but with a seeing between 0.9 and 1.4 arcsec and a PSF that looked like the control loop was not even close, we expect the dataset to be good to be thrown in the trash. At some point we gave up, switched to the internal source and did some engineering and more EFC calibration. We managed to take some more data afterwards, although the seeing was still around 1.

We continued with Alycia, who got two lucky hours of decent seeing and observed an edge-on disk …All this before having to close the telescope because of a huge conglomerate of clouds approaching the telescope. Time for some more engineering in lab mode and watching a movie chilling on the amazing Clay furniture.

Clay in the moonlight with clouds + a quote from one of my favorite cartoons

At least we have pictures of animals

Enjoy heartwarming wildlife pictures from today’s selection:

Song of the day + movie

During our time with the telescope closed we have talked a lot about movies tonight, and especially Disney movies. So, today the movie I want to mention is my all-time favorite Disney movie, The Sword in the Stone. I want to quote what I decided to be also the song of the day, “That’s What Makes the World Go Round”, in which Merlin explains to Arthur how opposites continuously balance our existence. Very yin and yang, right?! I utterly love it.

Left and right
Like day and night
That’s what makes the world go round
In and out
Thin and stout
That’s what makes the world go round

For every up, there is a down
For every square, there is a round
For every high, there is a low
For every to, there is a fro

Merlin, in The Sword in the Stone (1963)
That’s What Makes the World Go Round from The Sword in the Stone (1963)

Bonus cloud song

Since we watched the Eurovision movie because of the clouds, today you get a bonus song: What a masterpiece.

Ja Ja Ding Dong – Eurovision song contest: The story of Fire Saga

MagAO-X 2025A Day 2: We’re so back

The Leiden team is so back! It is now the Europeans’ turn to tell you about their magical journey to LCO. Throughout the full blog post, we will also play a little game: Find the differences!

We left Amsterdam without delay and got to Madrid 6 hours before our next flight. Plenty of time to waste and not check properly our next gate yeyyy! To pass the time, Eugenia and I went on a mission: Getting to the medical center of Madrid’s airport because she had to get an injection done. We left Sebastiaan working on a proposal due literally one hour later, and he barely realized we were gone, so we set sail for an incredible adventure. You might remember from the past run how intricated Madrid’s airport can be. If you don’t, I suggest to check it out here. After asking a bunch of people and mistaking our way a couple of times, we found the way to get to the medical center: We had to go through passport control machines, go to floor 0 (basically a basement), then come back up, go through passport control again but in the opposite direction (the policeman had to let us through manually) and then go through a security check (??) to be able to go back to the cafe’ where Sebastiaan was waiting for us. Pretty scary that the medical center of an airport is so inaccessible, right?? Well, and then people ask me why I hate Madrid’s airport. In my favorite movie ever, Donnie Darko, Gretchen asks Donnie “What if you could go back in time and take all those hours of pain and darkness and replace them with something better?”. Well, I know which hours of pain and darkness I want to replace in my life: All the hours spent in Madrid’s airport. With what? With a group of happy viscachas chilling in the sun.

Anyways, let’s bring in some fun: Find the differences between these two pictures of Sebastiaan before we left and when we came back (hover on the pic for the solution).

We then had a relaxing dinner, since there was so much time to go to the wrong gate afterwards. Let’s continue to play with another before-after spot the differences game.

We then proceeded to gate S16 and waited to board. Eugenia even gave us the idea to make an April’s fools joke to our fellow Leiden people saying we have lost our plane. Ah ah ah! So funny! We then tried to board the plane but our tickets didn’t work for some reason. That’s when the Iberia lady at the gate looked at us and said “You are flying with LATAM, gate S44, RUN“. Now, can someone please explain why two airlines that are partners have two flights to Santiago from a same airport at the SAME EXACT TIME (23:55)? In our defense, yes, we knew we were flying with LATAM and not Iberia, but they are partners and also our tickets were printed by Iberia so they had their logo on it. I am honestly surprised we were the only people who were deceived by this badly designed schedule. After running for our lives, we were the last people to board the flight. Pretty scary. So, this is the story of how we were about to loose a flight while chilling for 6 hours at the airport.

The journey proceeded smoothly and we got to Santiago surprisingly rested after a lot of sleep on the plane. Again, try to find the differences between our arrival in Santiago for the 2024B run (on the right) and this run (on the left):

A few hours later we got to La Serena safely together with Joseph and Jeb. Laird was right after us, coming up with the following car. Not tired enough from our long trip, we headed right away to the clean room to (successfully) install new PIAACMC and align new prisms for the Self-Coherent Camera. Laird was also working with Tiago and Rodrigo on the polarimeters.

Right after, we have witnessed not one but two (!!) incredible events: One of the best green flashes ever seen in history – which we have slightly captured in a picture as well – and three foxies together!

Finally, I want to leave you with this hyper-memeable picture that you didn’t know you needed. Simply replace “ribs” with something else. You can thank me later.

The song of the day is a song that a random dude on my last plane made me listen to with his headphones. I don’t know if he stalked me and so he knew my name or if it was just a funny coincidence… But the name of the song is Helena. Enjoy or be creeped out. Cheers! I am going to sleep.

Helena – My Chemical Romance