@astro_jcm@mastodon.online
@astro_jcm@mastodon.online avatar

astro_jcm

@astro_jcm@mastodon.online

• Astronomer and science communicator
• Media Officer at the European Southern Observatory
• Won't shut up about space
#astronomy #astrophysics #scicomm #astrophotography #space
• he/him
• Toots in English and español
• 🇪🇸 → 🇺🇸 → 🇨🇱 → 🇩🇪

This profile is from a federated server and may be incomplete. Browse more on the original instance.

astro_jcm, to internet
@astro_jcm@mastodon.online avatar

Paraphrasing Douglas Adams:

“But the Web mode was on display…”
“On display? I eventually had to go to the 3 dots menu to find it.”

astro_jcm, to Astro
@astro_jcm@mastodon.online avatar

1/2 I still struggle getting used to the fact that the smallest mirrors of the Extremely Large Telescope are similar in size to the primary mirrors of many current telescopes!

The M5 – the fifth mirror in the optical path – has reached a key milestone: its blank, the piece that will be later polished, has been finalised.

https://youtu.be/xI1IBpTHVX8?si=RekXIDlOG30h4PQU

astro_jcm,
@astro_jcm@mastodon.online avatar

2/2 This flat elliptical mirror measures 2.7 by 2.2 metres. It's the largest tip-tilt mirror in the world: it will move without bending about 10 times per second.

It will work together with the M4, a very fast deformable mirror, to correct perturbations caused by the telescope mechanisms, the wind and atmospheric turbulence.

More details here: https://www.eso.org/public/announcements/ann24008/

astro_jcm,
@astro_jcm@mastodon.online avatar

@knud Engineers: So, would you like this thing to be very large or very rigid?

Astronomers: Yes

astro_jcm,
@astro_jcm@mastodon.online avatar

@tehstu Likewise! I really like chatting with the engineers here when I have the chance. Sometimes I feel that the engineering problems they have to solve are more bonkers than the astrophysical problems we want to solve with the things they build 😅

astro_jcm, to Astro
@astro_jcm@mastodon.online avatar

This image perfectly conveys just how huge the 100-m dish of the Green Bank Telescope is. I had the chance to visit it a few years ago, back when I lived in the US, and the view from the receiver room is stunning. Although I must admit that looking down through the mesh floor was... "an experience" 😵‍💫 😅

https://public.nrao.edu/gallery/ants-on-a-plate/

📷 B. Saxton, NRAO/AUI/NSF

astro_jcm, (edited ) to random
@astro_jcm@mastodon.online avatar

Started boiling some Weißwurst without realising I'm all out of sweet mustard, and stores are closed today. Should I...
(a) Go out and buy mustard in a gas station.
(b) Use sriracha, the only other sauce I happen to have at home right now, and risk being deported from Germany.

astro_jcm,
@astro_jcm@mastodon.online avatar

So at the end I went for (b), and I'm still in the country... 😂

astro_jcm, to scifi
@astro_jcm@mastodon.online avatar

'Scavengers Reign' is one of the best shows I've ever seen. HBO –oops, sorry, 'Max'– killing it is so dumb. I don't trust much more in this sense, but if the show can have a second life there then so be it. While season 1 was pretty self-contained, I really want to keep exploring this fascinating world.

https://variety.com/2024/tv/news/scavengers-reign-canceled-max-netflix-1235998046/

astro_jcm,
@astro_jcm@mastodon.online avatar

@grb090423 According to the article, season 1 will start streaming on Netflix (in some countries) by the end of the month, so at least there's that...

astro_jcm, to Astronomy
@astro_jcm@mastodon.online avatar

Red. Red everywhere. Alas, too much light pollution here in Munich 🙁

https://www.foto-webcam.eu/

astro_jcm,
@astro_jcm@mastodon.online avatar
astro_jcm,
@astro_jcm@mastodon.online avatar

@0rkk0 Yup!

astro_jcm, to Astro
@astro_jcm@mastodon.online avatar

Me getting mentally ready to be super jealous of the upcoming pics from those of you living at higher latitudes.

astro_jcm,
@astro_jcm@mastodon.online avatar

@juandesant Recent NOAA forecasts show emissions all the way down to Seattle. I don't think you'll be lucky in Santiago, but there should be a nice display in Antarctica.

astro_jcm,
@astro_jcm@mastodon.online avatar

@gregdavis Ouch! But nice that you could see them back then!

astro_jcm,
@astro_jcm@mastodon.online avatar

@lolopb @juandesant Definitely aurora!

astro_jcm, to Astronomy
@astro_jcm@mastodon.online avatar

Paranal Observatory was my home away from home for many years. In this blog post Vanessa Peidro Cid, the Head of Paranal Logistics and Facilities, takes us on a behind-the-scenes tour of what it takes to run this small "town" in the Atacama Desert. A lovely piece by Elena Reiriz Martínez, one of our communication interns at ESO.

https://www.eso.org/public/blog/tiny-town-in-the-desert/

astro_jcm, to random
@astro_jcm@mastodon.online avatar

I mean, it can be an emergency!

astro_jcm,
@astro_jcm@mastodon.online avatar

(Old pic I found in my phone back from when I lived in Chile)

astro_jcm,
@astro_jcm@mastodon.online avatar

@MichaelPorter Indeed! :D

astro_jcm, to random
@astro_jcm@mastodon.online avatar

Current rain situation in

astro_jcm, to chile
@astro_jcm@mastodon.online avatar

Happy to those who celebrate! Here's a pic I took a few years ago back when I worked at ESO's Paranal Observatory in . One of our 8.2 m telescopes was pointing at the centre of the , home to Sagittarius A*, a 4 million times more massive than the .

Astronomers devoted almost a century to unmask this beast:

https://www.eso.org/public/blog/our-quest-for-sagittarius-a/

until the Event Horizon Telescope finally imaged it:

https://www.eso.org/public/science/EHT-MilkyWay/

astro_jcm,
@astro_jcm@mastodon.online avatar

@DelRider The laser excites sodium atoms in a layer 80-90 km above the ground, making them glow. This creates an artificial "star" that we can use to monitor atmospheric turbulence in real time, correcting it with a fast deformable mirror.

EDIT: forgot to mention that it's yellowish because it has a wavelength of 589 nanometres, chosen to excite those sodium atoms.

astro_jcm, to Cat
@astro_jcm@mastodon.online avatar
  • All
  • Subscribed
  • Moderated
  • Favorites
  • provamag3
  • rosin
  • InstantRegret
  • ethstaker
  • DreamBathrooms
  • mdbf
  • magazineikmin
  • thenastyranch
  • Youngstown
  • GTA5RPClips
  • slotface
  • Durango
  • khanakhh
  • kavyap
  • megavids
  • everett
  • vwfavf
  • tacticalgear
  • osvaldo12
  • cisconetworking
  • cubers
  • modclub
  • ngwrru68w68
  • Leos
  • anitta
  • normalnudes
  • tester
  • JUstTest
  • All magazines