MagAO-X 2025A Day 19: A night to not remember.

Much Strehl that once was is lost, for none now observe who remember it. It began with the forging of the Great Weather forecast. Dark clouds were given to the day crew, immortal, wisest and fairest of all beings. Dark clouds were also given to the astronomers, great miners and craftsmen of the starry nights. And nine, nine dark clouds were gifted to the race of the night crew, who above all else desire Strehl. For within these clouds was bound the strength and the will to govern all observers. But they were all of them deceived, for another weather pattern was made. Deep in the land of Chile, in the Fires of Mount Las Campanas, the Dark Lord Sauron forged a master pattern, and into this pattern he poured his cruelty, his malice and his will to dominate all astronomers.

The prediction of tonight.
The reality of tonight.

One by one, the targets of MagAO-X fell to the power of the Clouds, but there were some who resisted. A last alliance of night crew and bright stars marched against the armies of the Chilean Clouds, and on the very slopes of Mount Las Campanas, they fought for the Strehl of MagAO-X.

And some things that should not have been forgotten were lost. History became legend. Legend became myth. And for two and a half thousand years (that’s how long it felt), high Strehls passed out of all knowledge. Until, when chance came, it ensnared another bearer.

During this night we struggled to keep the loop closed because our targets fluctuated in intensity by 5 magnitudes. This is an enormous amount. Eden bravely fought against changing conditions and sometimes she prevailed. But most of the time it was just a blood bath.

At the end of our 16th night everyone was slowly losing their minds. This led to a long string of making Maggie-O-X tell us jokes. Here is a fine selection of amazing jokes:

“Why did the AO system miss the coronagraph? Because it overdrove.

“What do you call an observer who is waiting for the sun? A dreamer.”

“Why are AO operators never scared? Because they already saw their own 3 AM face.”

“How many photons do you need for high Strehl? More than we got this night.”

“What is brown and sticky? A stick.”

“This night was not completely useless. It will forever serve as a bad example.”

“How do you talk to Italian ghosts? With a Luigi board.”

“What’s black and white and red all over? The tweeter.”

“No more adaptive optics for you!”

At least I saw a cat today.

I think I have added enough movie quotes to the blog post today. At least this music might give us hope for another night.

MagAO-X 2025A Day 18: The ‘whoa’ day

Hello guys, is me again eh eh.

It’s very good to see you!! I was not here for your last run so I kind of missed you.

Happy despite the clouds.

This run in particular felt a bit weird because you’ve been here for such a loooong time. I met the first shift and the new team members (at least, new to me). Then I went on my off-week, came back, and you were STILL here! Haha!

I’m surprised by how much Asian stuff you bring in.

This time, you really outdid yourself with the amount of snacks you brought. I’ve tried them all, although I especially enjoy trying new things, especially the sweet ones. I’m glad you were able to bring merkén chips, and I hope you enjoyed them! They’re not spicy, but they’re very flavorful.

As I was saying, my shift started again, and I met your second group, the other new members (new to me, at least), and all the new snacks you brought! I loooooove those chocolate-covered blueberries, I kind of expected them, haha. But this new group brought more spicy stuff, and I tried that Tom Yum Snack Mix… it was waaaaaay too spicy, haha! It was so spicy I almost choked!

I took a bite and almost choked to death — it was fiery!

I hope you enjoy the cuchuflis and alfajores with manjar … very typical from here, just a bit of Chile for you.

The not fun part of your run is the clouds. With Rebeca, the new TO, were expecting the meteoblue got it wrong. But the clouds finally arrived and I am glad you have a plan for that, still, not fun for anybody. Buuut, before the clouds arrived we had a whoa moment!

So I went outside and my mind was “WHOA, I have to share this“, so I ran to you but I could not find the cohete word. But before I finally said rocket, everybody stood up from their seats and went to see this cloud that was moving so fast — it only took a few minutes to cross the sky. The picture actually turned out really nice. The very exciting phenomena that we saw was an OVNI (UFO) but probably a rocket.

The 3 Marías (Orion belt), the OVNI, Clay and Laird bogey.

During my shift off I saw a relatively old movie, but ChatGPT helped me find it: He’s Just Not That Into You. In it, there’s a line that goes something like: ‘Exceptional cases are just that, the rest of us are just the rule.’ At the end of the movie, it leaves me with an important reflection: to truly be the exception to the rule, one has to see the signs and, above all, believe them. That being said, I’m really grateful I got to meet you and share some fun moments together — getting to know you and learning about the amazing work you’re doing for astronomy.

One very fun song for you, its kind of old, sung by a little girl who is now a woman but for some rare reason the song is popular again – I couldn’t found the new official version sooooo here you have “Dubidubidu” by Christell one interview version.

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 16: Excellent Extreme Experimenting and Engineering

Today the honour of blogging is all mine (Matthijs). A few of us went up before dinner to start preparing for a busy night full of experimental engineering observations (in particular Sebastiaan after he had stayed up until 10.30am to align VisX again). During daylight we of course managed to enjoy the company of some of the cute critters around here.

Sebastiaan started out the night with some observations of Betelgeuse, until it got too low and the ADCs which we only noticed because of our most underrated camera (which deserves more praise). After that, Elena spent some time looking at the self coherent camera (SCC) imaging.

During this observing run Sebastiaan and Josh have attempted multiple times to use EFC for some deep dark hole observations of Alpha Centauri (in order to please Jared). These observations have been tarnished by bad seeing, bad calibrations, fluctuations in the laser power and alignment issues. Here’s an impression of what that did to Sebastiaan:

Sebastiaan getting headaches thinking about how to get EFC to work

However, today was the day that all the stars aligned, good seeing, good calibration, good alignment (scripts) and it finally worked.

Diggy diggy

Eden has been looking at some donuts all week (no one knows why) but she’s finally figured out to turn these donuts into some (possibly) correct Strehl estimates (camtip FTW).

Eden and her deep fried dark holes

Myself, I interjected myself between some observations just to try out my semi-analytical FLOWFS control loop (of which I forgot to take a picture…).

Elena also managed to get some pretty PIAA observations.

In conclusion, we are doing great and if I had to summarise it in a movie quote I would say: “Desert power” – Dune 2021 .

Song of the Day

Someone mentioned potentially observing a target with 1612 in the name (or I might have imagined it) but this song has been stuck in my head all night. Enjoy!

MagAO-X 2025A Day 15: Close Encounters of the Laird Kind

Tonight was another Laird night which means more of our favorite target, PDS 70!

Could PDS 70 have alien life? Will we find a new planet? Are the answers to these questions always ‘no’?

Who’s to say.

We will get back to the PDS 70 excitement shortly, but first, a recap of the day’s festivities:

Team Leiden is ready for battle.

Sebastiaan and Elena got the FAST-SCC (self-coherent camera) working in lab! In the FAST-SCC, a coronagraph yeets light through a pinhole in the Lyot stop. This spatially filtered light interferes with residual stellar speckles, creating a fringe pattern in the focal plane from which the wavefront can be recovered. With our wavefront measurement, we can diggy diggy a dark hole.

I am a dwarf and I’m digging a hole…

Meanwhile, Katie and I hiked out to the solar telescope, and we also saw a burro.

The solar telescope has truly cemented its legacy (get it, cuz the enclosure is made of cement).

Following a brief interlude, we have returned to the scene of PDS 70. While Logan may have left us, the good seeing that typically follows her decided to stick around.

“How could this be?” You ask.

Enter…Stewart.

A portrait of Stewart E. Stewartson (colorized, date unknown).

With Stewart’s steady hand, we got some of the best seeing of our entire run!

Nooice.
Stewart operates the AO system as Sebastiaan and Matthijs look on.

Our night also featured a beautiful moon.

Good night moon.
Good day, moon.

Having reached the epic conclusion of this blog post, I am ready to go to bed. “The midnight hour is passed and my attendants have all retired.” I recently watched the 2024 remake of Nosferatu, and it was difficult to find an appropriate quote for this blog post.

Song of the Day

Dancing in the Moonlight – King Harvest