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astro_jcm, to random
@astro_jcm@mastodon.online avatar

sci-fi 🤝 interferometry

astro_jcm,
@astro_jcm@mastodon.online avatar

Silly and very niche pun brought to you by the fact that I've started re-watching 'Fringe'.

If you wanna know what fringes are in interferometry, check this out: https://www.eso.org/public/teles-instr/technology/interferometry/

#SciFi #astronomy #science

lolopb,
@lolopb@mastodon.social avatar

@astro_jcm is it still holding well so many years after?

astro_jcm, to mastodon
@astro_jcm@mastodon.online avatar

The more I use @phanpy the more I love it. One of my favourite features is the catch-up tool, which allows you to fetch all posts within the last X hours and rank them however you want.

Oldest first is particularly useful to catch up with folks in very different timezones. You can also rank by number of replies, boosts... even by "density" of information (denser posts: longer ones or those with multimedia content). You can even group posts by author.

What a great #mastodon client!

astro_jcm, to random
@astro_jcm@mastodon.online avatar

me: "argh, I can't find the tab where I was editing this online document. Screw it, I'll open another tab."

two hours later:

lffontenelle,
@lffontenelle@mastodon.social avatar

@astro_jcm which reminds me

https://tldr.nettime.org/@remixtures/112388215446752030

(Was it you who boosted this some days ago?)

astro_jcm,
@astro_jcm@mastodon.online avatar

@lffontenelle I don't remember having seen or boosted that, but it's pretty epic :D

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

1/4 "All those protoplanetary discs will be lost, like tears in a rain of ultraviolet photons."

Ok, it doesn't sound as cool as the actual quote, but still 😉

This tear-shaped object is a protoplanetary disc –the birthplace of planets around another star– observed with ESO's Very Large Telescope. Material from the disc is being stripped away by a bright star beyond the upper-right corner, outside of the field of view, hence this cometary shape.

📷 ESO/M. L. Aru et al.

astro_jcm,
@astro_jcm@mastodon.online avatar

4/4 For more details, follow this link: https://www.eso.org/public/images/potw2423a/

grb090423,
@grb090423@mastodon.social avatar

@astro_jcm

This is amazing!

astro_jcm, to photography
@astro_jcm@mastodon.online avatar
astro_jcm, to chile
@astro_jcm@mastodon.online avatar

Soon the telescope platform at ESO's Paranal Observatory in will look very different at night: all four of the 8.2 m telescopes of the VLT will be equipped with lasers! This is one of the ongoing upgrades of the GRAVITY+ instrument, which will allow us to study black holes, stars and planets like never before.

Find out more in this great article by current and former ESO communication interns Elena Reiriz Martinez and Tom Howarth: https://www.eso.org/public/blog/gravity-leap-vlti/

freakazoid,
@freakazoid@retro.social avatar

@astro_jcm I managed to see a guide star operating at Lick Observatory once. Photos show a bright yellow beam, but I was only able to see it in my peripheral vision. Very cool to see this perfectly straight yellow beam projecting upward from the dome!

astro_jcm,
@astro_jcm@mastodon.online avatar

@freakazoid I think Lick was one of the first (maybe the first?) observatories to have a laser guide star.

astro_jcm, to Astro
@astro_jcm@mastodon.online avatar

One night at ESO's Extremely Large Telescope

https://youtu.be/ytVC8lBxNaU

🎥 B. Häußler/ESO

croyle,
@croyle@wandering.shop avatar

@kellylepo @astro_jcm That's a beautiful timelapse!

astro_jcm,
@astro_jcm@mastodon.online avatar

@croyle @kellylepo It is! It was shot by a colleague who works there.

astro_jcm, to ai
@astro_jcm@mastodon.online avatar

How did we go from "problem --> solution" to "here's a rock that somehow connects to the internet, it's $500 or $700 if you want it with #AI"

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.”

#internet #google

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.

#astrodon #astronomy #engineering #technology

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

@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

#astrodon #astronomy #science #engineering

grb090423,
@grb090423@mastodon.social avatar

@astro_jcm

Mesh floor?! Gulp!

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.

NatureMC,
@NatureMC@mastodon.online avatar

@astro_jcm 🤣
When I lived in Germany, I used the very strong French Dijon mustard (because the Weißwurst was too sweet for me). They didn't deport me but meanwhile, as a German, I live in the country of the best mustard. Dijon mustard in every supermarket. 😁

alter_unicorn,
@alter_unicorn@masto.bike avatar

@astro_jcm that's brave.

astro_jcm, to scifi
@astro_jcm@mastodon.online avatar

'Scavengers Reign' is one of the best #SciFi #tv shows I've ever seen. HBO –oops, sorry, 'Max'– killing it is so dumb. I don't trust #Netflix 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...

grb090423,
@grb090423@mastodon.social avatar

@astro_jcm

Ah, thank you.

(Sorry, I haven't yet read the article.)

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/

#aurora #astronomy #astrophotography

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 #aurora pics from those of you living at higher latitudes.

#astrodon #astronomy #astrophotography

lolopb,
@lolopb@mastodon.social avatar

@juandesant @astro_jcm too late, where I am now the view is awful 😢

Tomorrow maybe or will it be too late? I can always try! With both the iPhone and the Fuji 😊

juandesant,
@juandesant@astrodon.social avatar

@lolopb @astro_jcm it might not be as powerful, but it should still be visible.

For your Fuji, set it to a high ISO (beyond 3600), wide aperture, and check between 5 and 30 seconds… best of luck!

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