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Reposted by Nereide

Nereide @drnereide.bsky.social · 1d

The #JWST now sees the universe with stunning clarity, thanks to a fantastic, Australian team led by Benjamin Pope, Associate Professor at Macquarie University.🔭 🧪

Using AMI (Aperture Masking Interferometer), they fixed blurry images, unveiling planets, Io’s volcanoes, and black hole jets...

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Benjamin Pope @benjaminpope.bsky.social · 1d

Thrilled to have two years' of work out, in a pair of papers led by @gradientrider.bsky.social and @maxecharles.bsky.social.

We've built a data-driven calibration of the James Webb Interferometer to near its fundamental limits for high-res imaging - explainer at @aunz.theconversation.com!

How we sharpened the James Webb telescope’s vision from a million kilometres away

The only Australian hardware on board the legendary telescope is starting to fulfil its duties.

theconversation.com

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Reposted by Nereide

👻SAAAAAAAAHHHHHHvik Ford 🎃 @saavikford.bsky.social · 14h

Check out the lovely slider image for NGC 1068 at The Conversation!

Looks like saying, ‘Computer, enhance!’ On Star Trek (only with a LOT more work by Max Charles!)!

Nereide @drnereide.bsky.social · 1d

in remarkable detail. 🔭 🧪

These are the two research papers:

➡️ arxiv.org/abs/2510.09806 (led by Louis Desdoigts)

➡️ arxiv.org/abs/2510.10924 (led by Max Charles)

Read Benjamin Pope's thread here.

Dive into the story on The Conversation: theconversation.com/how-we-sharp...

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AMIGO: a Data-Driven Calibration of the JWST Interferometer

The James Webb Space Telescope (JWST) hosts a non-redundant Aperture Masking Interferometer (AMI) in its Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument, providing the only dedicate...

arxiv.org

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Nereide @drnereide.bsky.social · 19h

You're welcome!
Glad you appreciate it.

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Nereide @drnereide.bsky.social · 21h

Definitely!

Nereide @drnereide.bsky.social · 1d

You're welcome!

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Reposted by Nereide

Nereide @drnereide.bsky.social · 1d

🧵
What is coming down from the left is the Moon, appearing so large because photographed through a telescopic lens.

The video, made during the 2018 full Milk Moon,
isn't time-lapse: this was really how fast the Moon was setting behind Mount Teide.

➡️ apod.nasa.gov/apod/ap20032...

🔭 🧪 #science

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Nereide @drnereide.bsky.social · 1d

in remarkable detail. 🔭 🧪

These are the two research papers:

➡️ arxiv.org/abs/2510.09806 (led by Louis Desdoigts)

➡️ arxiv.org/abs/2510.10924 (led by Max Charles)

Read Benjamin Pope's thread here.

Dive into the story on The Conversation: theconversation.com/how-we-sharp...

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AMIGO: a Data-Driven Calibration of the JWST Interferometer

The James Webb Space Telescope (JWST) hosts a non-redundant Aperture Masking Interferometer (AMI) in its Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument, providing the only dedicate...

arxiv.org

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Nereide @drnereide.bsky.social · 1d

The #JWST now sees the universe with stunning clarity, thanks to a fantastic, Australian team led by Benjamin Pope, Associate Professor at Macquarie University.🔭 🧪

Using AMI (Aperture Masking Interferometer), they fixed blurry images, unveiling planets, Io’s volcanoes, and black hole jets...

1/2

Benjamin Pope @benjaminpope.bsky.social · 1d

Thrilled to have two years' of work out, in a pair of papers led by @gradientrider.bsky.social and @maxecharles.bsky.social.

We've built a data-driven calibration of the James Webb Interferometer to near its fundamental limits for high-res imaging - explainer at @aunz.theconversation.com!

How we sharpened the James Webb telescope’s vision from a million kilometres away

The only Australian hardware on board the legendary telescope is starting to fulfil its duties.

theconversation.com

4 16 55

Nereide @drnereide.bsky.social · 1d

... giving an effective focal length of around 2800mm (possibly up to 4200mm). This explains the Milk Moon’s massive appearance against Teide from 16 km away.

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Nereide @drnereide.bsky.social · 1d

Great question!
The APOD article doesn’t specify the exact focal length, but based on discussions in the Starship Asterisk APOD forum, the setup likely involved a Sony a6300 camera (with a 1.5x crop factor) and Canon 1.4x and 2x teleconverters on a ~1000mm telescope or lens, ...

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Nereide @drnereide.bsky.social · 1d

Right? The Moon filling the sky like that would be mind-blowing, equal parts eerie and epic. This video’s Teide backdrop already makes it feel enormous.

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Nereide @drnereide.bsky.social · 1d

Wow, that Moon setting is stunning! I haven’t spotted a 'Keep Teide tidy' sign, maybe it’s a hidden gem.

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Nereide @drnereide.bsky.social · 1d

Totally agree! The Moon setting behind Teide volcano creates such a haunting yet stunning effect!

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Nereide @drnereide.bsky.social · 1d

Benvenuto!😊

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Nereide @drnereide.bsky.social · 1d

The last Milk Moon occurred on May 12, 2025. The next will be on May 1, 2026.

Video Credit: Daniel López (El Cielo de Canarias)

Further reading

➡️ www.astronomy.com/observing/fu...

➡️ www.timeanddate.com/moon/phases/...

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2025 Full Moon calendar: When to see the Full Moon and phases

The next Full Moon is the November Beaver Moon, which occurs at 8:19 a.m. on Wednesday, Nov. 5, 2025. It is also a Super Moon.

www.astronomy.com

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Nereide @drnereide.bsky.social · 1d

The Milk Moon is the full Moon of May. Its name has ancient origins and is linked to the agricultural and seasonal traditions of the Northern Hemisphere. May is the time of regular milking and "fresh milk," which becomes available to families & farms.

The Milk Moon is also known as Flower Moon.

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Nereide @drnereide.bsky.social · 1d

People in the scene are 16 km away and are watching the sunrise behind the photographer.

The movement visible in the video is mainly due to the Earth's rotation, which makes the Moon seem to slowly disappear behind the Teide volcano.

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Nereide @drnereide.bsky.social · 1d

🧵
What is coming down from the left is the Moon, appearing so large because photographed through a telescopic lens.

The video, made during the 2018 full Milk Moon,
isn't time-lapse: this was really how fast the Moon was setting behind Mount Teide.

➡️ apod.nasa.gov/apod/ap20032...

🔭 🧪 #science

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Reposted by Nereide

Nereide @drnereide.bsky.social · 2d

🧵
At the center of the frame is Cha 1107-7626 (not visible here), a rogue planet that is "devouring" gas and dust from its surroundings at a record rate of 6 billion tonnes per second.

➡️ eso.org/public/unite...

🔭 🧪 #science #planetsci #galactic

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This visible-light image, part of the Digitized Sky Survey 2, shows the position in the sky of the rogue planet Cha 1107-7626. The planet (not visible here) is located exactly at the centre of the frame. It is located in the Chamaeleon constellation, within the Milky Way galaxy.

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Nereide @drnereide.bsky.social · 2d

Close! Gas giants form by accreting gas and dust, but Cha 1107-7626 is a rogue planet with no star, undergoing an extreme burst of 6 billion tonnes per second, driven by gravity and magnetic fields. It may have formed more like a star, according to the research paper!

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Nereide @drnereide.bsky.social · 2d

You’re right, it’s wild! Cha 1107-7626 “devours” not just gas but also dust. This rogue planet, with no star, accretes material from its disk via gravity and magnetic fields, like a young star. A unique phenomenon!

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Nereide @drnereide.bsky.social · 2d

not like a vacuum cleaner.😊

Nereide @drnereide.bsky.social · 2d

Mass and volume can’t be directly compared; density (mass/volume) isn’t the key facto here. Cha 1107-7626, with 5-10 times Jupiter’s mass, attracts 6 billion tonnes of material per second through gravity and its magnetic field, channeling it along magnetic columns, like young stars do,...

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Nereide @drnereide.bsky.social · 2d

The magnetic field channels the material along “columns” to the surface in a process called magnetospheric accretion. It’s as if the planet “eats” the material, heating it up and making it glow, much like young stars do.
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Nereide @drnereide.bsky.social · 2d

Cha 1107-7626 doesn’t behave like a vacuum cleaner😊but attracts material through its gravity and magnetic field. Surrounded by a disk of gas and dust, during the accretion burst the planet incorporates 6 billion tonnes of material per second.
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