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Posts by Devaki (Khatai)

Video

1.5 hour timelapse of the Sun in hydrogen-alpha. I set this up quite late in the day and the Sun was pretty quiet so I was surprised how much evolution is visible in the prominences, granulation and the active region. I'll have to try more of this.

Video is set to loop forwards, then in reverse

🔭

6 months ago 68 16 3 0
Three images of Saturn from top to bottom: First, a standard RGB color image showing the rings nearly edge-on at about a 30 degree angle. Middle, a black and white image similar to above, but a little sharper taken with a filter that allows only wavelengths longer than 850nm. Lastly, at bottom, the rings seen as starkly white and the planet dark. This is a very narrow wavelength range of about 20nm centered on 889nm where methane absorbs light, making Saturn itself appear dark and the rings bright.

Three images of Saturn from top to bottom: First, a standard RGB color image showing the rings nearly edge-on at about a 30 degree angle. Middle, a black and white image similar to above, but a little sharper taken with a filter that allows only wavelengths longer than 850nm. Lastly, at bottom, the rings seen as starkly white and the planet dark. This is a very narrow wavelength range of about 20nm centered on 889nm where methane absorbs light, making Saturn itself appear dark and the rings bright.

Been imaging Saturn while its rings are nearly edge-on and tried some infrared filters. At this 889nm methane band, Saturn strongly absorbs light, whereas its rings scatter equally across wavelengths.

Also a good visual demo of how astronomers measure exoplanet atmospheres!

🔭🧪 #astrophotography

6 months ago 135 26 4 2

And as a bonus, here's a false-color composite of the same. Blue is mapped to all of visible, green is infrared beyond 850nm, and red is the methane band at 889nm.

🔭 #astrophotography #saturn

6 months ago 55 14 2 1

Yall check this out, it’s the top coolest thing I’ve seen in a while, closed form autodiffable representation of optical interferometry, enormously powerful. Yes!!

6 months ago 14 4 0 0
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Happy Pub Day to Earth and Earth-like Planets by Devaki D. Devi 🥳

Earth and Earth-like Planets is officially out for publication! 🧡 All pre-orders will be shipped as soon as possible.📦 If you haven't ordered your copy yet, you can purchase one here: www.abodepress.com/product-page...

6 months ago 4 3 0 0

Super happy about this paper today led by the brilliant @astroshashank.bsky.social - equations and information theory about what an interferometer really encodes about a stellar surface.

6 months ago 21 6 1 0

Another tour de force from @astroshashank.bsky.social.

Mapping stellar surfaces helps us understand that star’s planets, since the planets are illuminated by splotchy stars. 🧪🔭

Somebody hire @astroshashank.bsky.social!

6 months ago 21 5 2 0

#astro feed check this out!!

6 months ago 2 0 0 0
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Video

New paper by me and @benjaminpope.bsky.social! How well can we map a star using optical interferometry?

This is just a submitted preprint at the moment--comments and questions welcome! (1/N)

arxiv.org/abs/2509.25433

6 months ago 50 11 5 5

Reposting for the #astro feed! 🔭

6 months ago 6 1 0 0
A side profile of what looks like an ant on a piece of wood against a dark background. Closer inspection reveals the "ant" has two large binocular eyes and the "antennae" are in fact legs--this is a spider from the jumping spider family

A side profile of what looks like an ant on a piece of wood against a dark background. Closer inspection reveals the "ant" has two large binocular eyes and the "antennae" are in fact legs--this is a spider from the jumping spider family

A semi-front view of what looks like an ant on a piece of wood against a dark background. Closer inspection reveals the "ant" has two large binocular eyes and 8 legs--this is a spider from the jumping spider family

A semi-front view of what looks like an ant on a piece of wood against a dark background. Closer inspection reveals the "ant" has two large binocular eyes and 8 legs--this is a spider from the jumping spider family

A semi-front view of what looks like an ant on a piece of wood against a dark background. Closer inspection reveals the "ant" has two large binocular eyes and the "antennae" are in fact legs--this is a spider from the jumping spider family

A semi-front view of what looks like an ant on a piece of wood against a dark background. Closer inspection reveals the "ant" has two large binocular eyes and the "antennae" are in fact legs--this is a spider from the jumping spider family

An ant? No, an ant-mimic spider (Myrmarachnae). These are from the family Salticidae (jumping spiders) and you can see it in their big binocular front eyes. Although they have 8 legs they often wave their front two like antennae just to get in character.

#bugsky #spidersky 🌿

7 months ago 5 1 0 0

YAYAY thank youuu!!!

7 months ago 1 0 0 0

I've had the privilege of reading these stories and I really loved its incisive read on the desi diaspora. If you like flash fic along with a dose of magical realism, preorder this book! And I may be biased but it's a great title and cover art too!

#booksky #reading

7 months ago 2 1 1 0

Hi yall this is a collection I worked so hard on & I'm so so grateful to Abode & to the editor Diamond & to my cover artist (chaoberries on IG!) It really came together so beautifully and I hope desi diaspora (esp if you grew up in the 2000s!) resonates w these quiet but contemplative stories 💜

7 months ago 2 2 0 0
Preview
Earth & Earth-like Planets by Devaki D. Devi | Abode Press Earth and Earth-like Planets by Devaki D. Devi is the eigth (and final) chapbook in Abode's 2024-2025 lineup and is officially available for pre-order! All orders will be shipped by early October.…

Earth and Earth-like Planets by Devaki D. Devi is the eighth (and final) chapbook in Abode's 2024-2025 lineup and is officially available for pre-order! All orders will be shipped by early October.

Preorder now: www.abodepress.com/shop

7 months ago 2 1 0 0
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Graphic depicting the cover of Earth and Earth-like Planets. The cover is purple with a planet and stars in the background, in the foreground a white teapot pours light brown tea into a teacup. In the right hand corner of the graphic it reads "coming October 1st".

Graphic depicting the cover of Earth and Earth-like Planets. The cover is purple with a planet and stars in the background, in the foreground a white teapot pours light brown tea into a teacup. In the right hand corner of the graphic it reads "coming October 1st".

Graphic with a description of the chapbook Earth and Earth-like Planets (which is included in the caption) as well as a link to preorder at abodepress.com/shop

Graphic with a description of the chapbook Earth and Earth-like Planets (which is included in the caption) as well as a link to preorder at abodepress.com/shop

We're excited to share the cover of Earth and Earth-like Planets by Devaki D. Devi!

Earth & Earth-like Planets by Devaki D. Devi is a collection of imaginative short stories following Indian American children, teens, and young adults as they come of age in a country that often alienates them.

7 months ago 4 1 1 2

Omg ill send u a link when it's out 🥹🥹🥹 this makes me feel so happy u have no ideaaa

8 months ago 1 0 0 0

Aww that means so so much !!!

8 months ago 0 0 1 0

🥹🥹🥹🥹🩵

8 months ago 1 0 0 0

Would anyone also care that I went into a coma for a year after it was accepted then spent all of this year editing it and it comes out in a month and it feels surreal and also sad bc I might never be well enough to write and publish again

8 months ago 3 0 1 0

If I had a chapbook coming out that I wrotevwhile bedbound to cope with feeling disconnected from my culture bc im queer and disabled but I transmuted it into a bunch of flash surreal coming of age stories abt indian american kids who struggle with fitting in would anyone care

8 months ago 3 0 2 0

#disability #ventart #chronicillnessart #neisvoid #mecfs

9 months ago 1 0 0 0
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2/2

9 months ago 1 0 1 0
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First time capturing this in a comic to raise awareness about my chronic illness (severe M.E.) 💗🥹 please read it took a month and I drew it with my fingers on my phone horizontal and bedbound 😭 (1/2)

9 months ago 2 1 1 0
Zohran looking out on a victory night crowd.

Zohran looking out on a victory night crowd.

In the words of Nelson Mandela: it always seems impossible until it’s done.

My friends, it is done. And you are the ones who did it.

I am honored to be your Democratic nominee for the Mayor of New York City.

9 months ago 67730 9343 1576 1011
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this is truly a legendary night for New York City. @zohrankmamdani.bsky.social stared down every media outlet, every mainstream democrat politician, and more money than god and not only won but completely trounced the opposition. There's still hard work left to do but tonight is for celebration

9 months ago 7 1 1 0

FUCK the fascist Islamophobic nytimes and CONGRATULATIONS TO ZOHRAN MAMDANI

9 months ago 0 0 0 0
Video

Tomorrow is ours if we want it.

zohranfornyc.com/gotv

9 months ago 10558 1962 247 176
10 months ago 0 0 0 0

Getting rid of all the funding for Jobcorps is beyond evil

10 months ago 0 1 0 0