#vlt — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #vlt, aggregated by home.social.
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RE: https://mastodon.social/@esoastronomy/116594284984041681
Despite being housed in enclosures that protect them from the extreme desert 🏜️ conditions during the day, #telescope 🔭 mirrors are still exposed at night, and therefore they need to be cleaned and #recoated to keep their reflectivity. A truck carries one of the mirrors of #ESO’s Very Large Telescope (#VLT) to the recoating facility
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RE: https://mastodon.social/@esoastronomy/116594284984041681
Despite being housed in enclosures that protect them from the extreme desert 🏜️ conditions during the day, #telescope 🔭 mirrors are still exposed at night, and therefore they need to be cleaned and #recoated to keep their reflectivity. A truck carries one of the mirrors of #ESO’s Very Large Telescope (#VLT) to the recoating facility
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RE: https://mastodon.social/@esoastronomy/116594284984041681
Despite being housed in enclosures that protect them from the extreme desert 🏜️ conditions during the day, #telescope 🔭 mirrors are still exposed at night, and therefore they need to be cleaned and #recoated to keep their reflectivity. A truck carries one of the mirrors of #ESO’s Very Large Telescope (#VLT) to the recoating facility
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RE: https://mastodon.social/@esoastronomy/116594284984041681
Despite being housed in enclosures that protect them from the extreme desert 🏜️ conditions during the day, #telescope 🔭 mirrors are still exposed at night, and therefore they need to be cleaned and #recoated to keep their reflectivity. A truck carries one of the mirrors of #ESO’s Very Large Telescope (#VLT) to the recoating facility
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RE: https://mastodon.social/@esoastronomy/116594284984041681
Despite being housed in enclosures that protect them from the extreme desert 🏜️ conditions during the day, #telescope 🔭 mirrors are still exposed at night, and therefore they need to be cleaned and #recoated to keep their reflectivity. A truck carries one of the mirrors of #ESO’s Very Large Telescope (#VLT) to the recoating facility
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3/
Measuring the Blur: Because the telescope "knows" exactly what that laser star should look like (a perfect point of light), it can measure how the atmosphere is currently distorting it.
The Shape-Shifting Mirror: This data is sent to a deformable mirror inside the telescope. This mirror has hundreds of tiny actuators behind it that adjust its shape thousands of times per second to perfectly cancel out the atmospheric turbulence.
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3/
Measuring the Blur: Because the telescope "knows" exactly what that laser star should look like (a perfect point of light), it can measure how the atmosphere is currently distorting it.
The Shape-Shifting Mirror: This data is sent to a deformable mirror inside the telescope. This mirror has hundreds of tiny actuators behind it that adjust its shape thousands of times per second to perfectly cancel out the atmospheric turbulence.
-
3/
Measuring the Blur: Because the telescope "knows" exactly what that laser star should look like (a perfect point of light), it can measure how the atmosphere is currently distorting it.
The Shape-Shifting Mirror: This data is sent to a deformable mirror inside the telescope. This mirror has hundreds of tiny actuators behind it that adjust its shape thousands of times per second to perfectly cancel out the atmospheric turbulence.
-
3/
Measuring the Blur: Because the telescope "knows" exactly what that laser star should look like (a perfect point of light), it can measure how the atmosphere is currently distorting it.
The Shape-Shifting Mirror: This data is sent to a deformable mirror inside the telescope. This mirror has hundreds of tiny actuators behind it that adjust its shape thousands of times per second to perfectly cancel out the atmospheric turbulence.
-
3/
Measuring the Blur: Because the telescope "knows" exactly what that laser star should look like (a perfect point of light), it can measure how the atmosphere is currently distorting it.
The Shape-Shifting Mirror: This data is sent to a deformable mirror inside the telescope. This mirror has hundreds of tiny actuators behind it that adjust its shape thousands of times per second to perfectly cancel out the atmospheric turbulence.
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2/
How the "tuning" works:The VLT uses a technology called Adaptive Optics to fix this in real-time:
Creating the Reference: The lasers are fired 90 kilometers up into a layer of the atmosphere rich in sodium atoms. The laser light excites these atoms, making them glow and creating an "artificial star" exactly where the telescope is looking.
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2/
How the "tuning" works:The VLT uses a technology called Adaptive Optics to fix this in real-time:
Creating the Reference: The lasers are fired 90 kilometers up into a layer of the atmosphere rich in sodium atoms. The laser light excites these atoms, making them glow and creating an "artificial star" exactly where the telescope is looking.
-
2/
How the "tuning" works:The VLT uses a technology called Adaptive Optics to fix this in real-time:
Creating the Reference: The lasers are fired 90 kilometers up into a layer of the atmosphere rich in sodium atoms. The laser light excites these atoms, making them glow and creating an "artificial star" exactly where the telescope is looking.
-
2/
How the "tuning" works:The VLT uses a technology called Adaptive Optics to fix this in real-time:
Creating the Reference: The lasers are fired 90 kilometers up into a layer of the atmosphere rich in sodium atoms. The laser light excites these atoms, making them glow and creating an "artificial star" exactly where the telescope is looking.
-
2/
How the "tuning" works:The VLT uses a technology called Adaptive Optics to fix this in real-time:
Creating the Reference: The lasers are fired 90 kilometers up into a layer of the atmosphere rich in sodium atoms. The laser light excites these atoms, making them glow and creating an "artificial star" exactly where the telescope is looking.
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You can think of those lasers as the "tuning fork" for the telescope's optical system.
Even in a place as clear as the Atacama, our atmosphere isn't perfectly still. Pockets of warm and cool air act like moving lenses, bending light and causing that "twinkling" effect we see in stars. While it's pretty for us, it’s a nightmare for astronomers because it blurs the fine details of distant galaxies.
-
You can think of those lasers as the "tuning fork" for the telescope's optical system.
Even in a place as clear as the Atacama, our atmosphere isn't perfectly still. Pockets of warm and cool air act like moving lenses, bending light and causing that "twinkling" effect we see in stars. While it's pretty for us, it’s a nightmare for astronomers because it blurs the fine details of distant galaxies.
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You can think of those lasers as the "tuning fork" for the telescope's optical system.
Even in a place as clear as the Atacama, our atmosphere isn't perfectly still. Pockets of warm and cool air act like moving lenses, bending light and causing that "twinkling" effect we see in stars. While it's pretty for us, it’s a nightmare for astronomers because it blurs the fine details of distant galaxies.
-
You can think of those lasers as the "tuning fork" for the telescope's optical system.
Even in a place as clear as the Atacama, our atmosphere isn't perfectly still. Pockets of warm and cool air act like moving lenses, bending light and causing that "twinkling" effect we see in stars. While it's pretty for us, it’s a nightmare for astronomers because it blurs the fine details of distant galaxies.
-
You can think of those lasers as the "tuning fork" for the telescope's optical system.
Even in a place as clear as the Atacama, our atmosphere isn't perfectly still. Pockets of warm and cool air act like moving lenses, bending light and causing that "twinkling" effect we see in stars. While it's pretty for us, it’s a nightmare for astronomers because it blurs the fine details of distant galaxies.
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Sodium Milky Way
This scene was captured at the Very Large Telescope (VLT) on Cerro Paranal, in Chile’s Atacama desert, under exceptionally pure observing conditions where the boundary between Earth and sky feels almost seamless. Situated at 2,635 metres above sea level, the site benefits from extremely dry conditions, stable atmospheric layers and minimal light pollution, resulting in more than 300 clear nights each year.
Julien Looten
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A fun detail in that photo of the two Lego telescope models in my previous post: that's the Very Large Telescope sitting on the right Nasmyth instrument platform of the Extremely Large Telescope. The two models are built to approximately the same scale, a VLT Unit Telescope (without its dome) really would fit on the instrument platform of the ELT, the jump in scale from the current generation of telescopes to the next is just that big.
In 2024 I was lucky enough to be able to photograph the ELT from the VLT and vice versa, enabling me to make a size comparison of my own: https://aus.social/@spacelizard/113185149611957251
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A fun detail in that photo of the two Lego telescope models in my previous post: that's the Very Large Telescope sitting on the right Nasmyth instrument platform of the Extremely Large Telescope. The two models are built to approximately the same scale, a VLT Unit Telescope (without its dome) really would fit on the instrument platform of the ELT, the jump in scale from the current generation of telescopes to the next is just that big.
In 2024 I was lucky enough to be able to photograph the ELT from the VLT and vice versa, enabling me to make a size comparison of my own: https://aus.social/@spacelizard/113185149611957251
-
A fun detail in that photo of the two Lego telescope models in my previous post: that's the Very Large Telescope sitting on the right Nasmyth instrument platform of the Extremely Large Telescope. The two models are built to approximately the same scale, a VLT Unit Telescope (without its dome) really would fit on the instrument platform of the ELT, the jump in scale from the current generation of telescopes to the next is just that big.
In 2024 I was lucky enough to be able to photograph the ELT from the VLT and vice versa, enabling me to make a size comparison of my own: https://aus.social/@spacelizard/113185149611957251
-
A fun detail in that photo of the two Lego telescope models in my previous post: that's the Very Large Telescope sitting on the right Nasmyth instrument platform of the Extremely Large Telescope. The two models are built to approximately the same scale, a VLT Unit Telescope (without its dome) really would fit on the instrument platform of the ELT, the jump in scale from the current generation of telescopes to the next is just that big.
In 2024 I was lucky enough to be able to photograph the ELT from the VLT and vice versa, enabling me to make a size comparison of my own: https://aus.social/@spacelizard/113185149611957251
-
A fun detail in that photo of the two Lego telescope models in my previous post: that's the Very Large Telescope sitting on the right Nasmyth instrument platform of the Extremely Large Telescope. The two models are built to approximately the same scale, a VLT Unit Telescope (without its dome) really would fit on the instrument platform of the ELT, the jump in scale from the current generation of telescopes to the next is just that big.
In 2024 I was lucky enough to be able to photograph the ELT from the VLT and vice versa, enabling me to make a size comparison of my own: https://aus.social/@spacelizard/113185149611957251
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If you're more into Lego than 3D printing @esoastronomy still has you covered. There are parts lists and assembly instructions for Lego models of both the Extremely Large Telescope and the Very Large Telescope, https://www.eso.org/public/australia/announcements/ann16013/?lang
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If you're more into Lego than 3D printing @esoastronomy still has you covered. There are parts lists and assembly instructions for Lego models of both the Extremely Large Telescope and the Very Large Telescope, https://www.eso.org/public/australia/announcements/ann16013/?lang
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If you're more into Lego than 3D printing @esoastronomy still has you covered. There are parts lists and assembly instructions for Lego models of both the Extremely Large Telescope and the Very Large Telescope, https://www.eso.org/public/australia/announcements/ann16013/?lang
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If you're more into Lego than 3D printing @esoastronomy still has you covered. There are parts lists and assembly instructions for Lego models of both the Extremely Large Telescope and the Very Large Telescope, https://www.eso.org/public/australia/announcements/ann16013/?lang
-
If you're more into Lego than 3D printing @esoastronomy still has you covered. There are parts lists and assembly instructions for Lego models of both the Extremely Large Telescope and the Very Large Telescope, https://www.eso.org/public/australia/announcements/ann16013/?lang
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#ESO:
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Erstes Licht für PoET: Ein strahlender Auftakt für die Exoplanetenforschung
"
".. Paranal Solar ESPRESSO Telescope (PoET), installiert am Paranal d. . ESO in Chile, hat .. seine ersten Beobachtungen durchgeführt. .. Teleskop wird in Kombination mit .. ESPRESSO-Instrument .. eingesetzt, um d. Sonne detailliert zu untersuchen. .. "https://www.eso.org/public/germany/news/eso2605/
9.4.2026
#Astronomie #Chile #ESPRESSO #Exoplanet #FirstLight #Helligkeitsschwankung #Italien #Paranal #PoET #Portugal #Teleskop #VLT
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#ESO:
"
Erstes Licht für PoET: Ein strahlender Auftakt für die Exoplanetenforschung
"
".. Paranal Solar ESPRESSO Telescope (PoET), installiert am Paranal d. . ESO in Chile, hat .. seine ersten Beobachtungen durchgeführt. .. Teleskop wird in Kombination mit .. ESPRESSO-Instrument .. eingesetzt, um d. Sonne detailliert zu untersuchen. .. "https://www.eso.org/public/germany/news/eso2605/
9.4.2026
#Astronomie #Chile #ESPRESSO #Exoplanet #FirstLight #Helligkeitsschwankung #Italien #Paranal #PoET #Portugal #Teleskop #VLT
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#ESO:
"
Erstes Licht für PoET: Ein strahlender Auftakt für die Exoplanetenforschung
"
".. Paranal Solar ESPRESSO Telescope (PoET), installiert am Paranal d. . ESO in Chile, hat .. seine ersten Beobachtungen durchgeführt. .. Teleskop wird in Kombination mit .. ESPRESSO-Instrument .. eingesetzt, um d. Sonne detailliert zu untersuchen. .. "https://www.eso.org/public/germany/news/eso2605/
9.4.2026
#Astronomie #Chile #ESPRESSO #Exoplanet #FirstLight #Helligkeitsschwankung #Italien #Paranal #PoET #Portugal #Teleskop #VLT
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#ESO:
"
Erstes Licht für PoET: Ein strahlender Auftakt für die Exoplanetenforschung
"
".. Paranal Solar ESPRESSO Telescope (PoET), installiert am Paranal d. . ESO in Chile, hat .. seine ersten Beobachtungen durchgeführt. .. Teleskop wird in Kombination mit .. ESPRESSO-Instrument .. eingesetzt, um d. Sonne detailliert zu untersuchen. .. "https://www.eso.org/public/germany/news/eso2605/
9.4.2026
#Astronomie #Chile #ESPRESSO #Exoplanet #FirstLight #Helligkeitsschwankung #Italien #Paranal #PoET #Portugal #Teleskop #VLT
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#ESO:
"
Erstes Licht für PoET: Ein strahlender Auftakt für die Exoplanetenforschung
"
".. Paranal Solar ESPRESSO Telescope (PoET), installiert am Paranal d. . ESO in Chile, hat .. seine ersten Beobachtungen durchgeführt. .. Teleskop wird in Kombination mit .. ESPRESSO-Instrument .. eingesetzt, um d. Sonne detailliert zu untersuchen. .. "https://www.eso.org/public/germany/news/eso2605/
9.4.2026
#Astronomie #Chile #ESPRESSO #Exoplanet #FirstLight #Helligkeitsschwankung #Italien #Paranal #PoET #Portugal #Teleskop #VLT
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#MPG:
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Seltener Nachweis zweier Protoplaneten
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".. zwei Protoplaneten im jungen Sternsystem WISPIT 2 nachgewiesen – Planeten, die sich im Prozess ihrer Entstehung befinden. Die Entdeckung zweier Planeten-Embryos um einen Stern gelang unter mehr als 6000 Exoplaneten bisher erst in einem weiteren System: PDS-70."https://www.mpg.de/26291657/0323-ext0-news20260324-151510-x
27.3.2026
#Astronomie #ESO #Exoplanet #Interferometrie #PDS70 #Planetenentstehung #Protoplanet #VLT #VLTI #WISPIT2 #WISPIT2c
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#MPG:
"
Seltener Nachweis zweier Protoplaneten
"
".. zwei Protoplaneten im jungen Sternsystem WISPIT 2 nachgewiesen – Planeten, die sich im Prozess ihrer Entstehung befinden. Die Entdeckung zweier Planeten-Embryos um einen Stern gelang unter mehr als 6000 Exoplaneten bisher erst in einem weiteren System: PDS-70."https://www.mpg.de/26291657/0323-ext0-news20260324-151510-x
27.3.2026
#Astronomie #ESO #Exoplanet #Interferometrie #PDS70 #Planetenentstehung #Protoplanet #VLT #VLTI #WISPIT2 #WISPIT2c
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#MPG:
"
Seltener Nachweis zweier Protoplaneten
"
".. zwei Protoplaneten im jungen Sternsystem WISPIT 2 nachgewiesen – Planeten, die sich im Prozess ihrer Entstehung befinden. Die Entdeckung zweier Planeten-Embryos um einen Stern gelang unter mehr als 6000 Exoplaneten bisher erst in einem weiteren System: PDS-70."https://www.mpg.de/26291657/0323-ext0-news20260324-151510-x
27.3.2026
#Astronomie #ESO #Exoplanet #Interferometrie #PDS70 #Planetenentstehung #Protoplanet #VLT #VLTI #WISPIT2 #WISPIT2c
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#MPG:
"
Seltener Nachweis zweier Protoplaneten
"
".. zwei Protoplaneten im jungen Sternsystem WISPIT 2 nachgewiesen – Planeten, die sich im Prozess ihrer Entstehung befinden. Die Entdeckung zweier Planeten-Embryos um einen Stern gelang unter mehr als 6000 Exoplaneten bisher erst in einem weiteren System: PDS-70."https://www.mpg.de/26291657/0323-ext0-news20260324-151510-x
27.3.2026
#Astronomie #ESO #Exoplanet #Interferometrie #PDS70 #Planetenentstehung #Protoplanet #VLT #VLTI #WISPIT2 #WISPIT2c
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#MPG:
"
Seltener Nachweis zweier Protoplaneten
"
".. zwei Protoplaneten im jungen Sternsystem WISPIT 2 nachgewiesen – Planeten, die sich im Prozess ihrer Entstehung befinden. Die Entdeckung zweier Planeten-Embryos um einen Stern gelang unter mehr als 6000 Exoplaneten bisher erst in einem weiteren System: PDS-70."https://www.mpg.de/26291657/0323-ext0-news20260324-151510-x
27.3.2026
#Astronomie #ESO #Exoplanet #Interferometrie #PDS70 #Planetenentstehung #Protoplanet #VLT #VLTI #WISPIT2 #WISPIT2c
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https://www.europesays.com/be-fr/39285/ Cette nouvelle image du VLT révèle un nuage de gaz près du trou noir de notre galaxie #Astronomie #BE #BEFr #Belgique #Belgium #CentreGalactique #cosmos #ERIS #ESO #Espace #étoiles #InformationsSurDesOrdinateursPortatifs #nouvelles #NuageDeGaz #pulsar #rapport #revues #SagittariusA* #Science #ScienceAndTechnology #Sciences #SciencesEtTechnologies #Technologies #Technology #test #TrouNoir #VeryLargeTelescope #VLT #VoieLactée
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https://www.europesays.com/ch-fr/45465/ Cette nouvelle image du VLT révèle un nuage de gaz près du trou noir de notre galaxie #Astronomie #CentreGalactique #cosmos #ERIS #ESO #Espace #étoiles #InformationsSurDesOrdinateursPortatifs #nouvelles #NuageDeGaz #pulsar #rapport #revues #SagittariusA* #Science #ScienceAndTechnology #Sciences #SciencesEtTechnologies #Suisse #Technologies #Technology #test #TrouNoir #VeryLargeTelescope #VLT #VoieLactée
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https://www.europesays.com/ie/378498/ VLT Discovers Third Gas Cloud near Milky Way’s Central Black Hole #BinaryStar #BlackHole #Cloud #Éire #ESO #G1 #G2 #G2t #IE #Ireland #IRS16SW #MilkyWay #SagittariusA #Science #star #SupermassiveBlackHole #VLT
