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Chara

@astrochara.bsky.social
471 followers 190 following 800 posts

A past, present, and future student of astronomy, I am an embodiment of Terra’s expressions, writing their own story and chasing their own aspiration for a moment. My celestial body personification (天体擬人化) project: #ACelestialJournal

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Reposted by Chara
Dr. Adeene Denton @spacewhalerider.com · 18h
Okay one other thing. Many people think that the ethics of planetary geoheritage is a whimsical topic that doesn't affect anyone. But, and this was mentioned only briefly in this session, the legality of extra-planetary conservation is tied directly to indigenous sovereignty.
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Chara @astrochara.bsky.social · 19h
I think when I use it, the only part that I like ADS more than SciX was how the former ordered Citation by Date, and the latter by Relevance, and I like citations ordered by date more
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🍊 tsu @tsurudraws.art · 11/09/2026
I've had people who can't afford to support monetarily be the reason paying clients find me just through word of mouth alone. My next customer might not see my post, but they might see your repost of my work or comms.
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よなか @yonaka479.bsky.social · 23h
ブラックホール擬人化しました! #未知る大宇宙 #天体擬人化 #擬人化 #一次創作 #oc #デジタル #イラスト
サイズ比較的な…?笑
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Chris Lintott @chrislintott.bsky.social · 11/10/2026
Work must be right - and that means extreme care needs to be taken to make sure we are not wrong. If we are right, then we should be interesting! Otherwise what's the point? If we're doing something right and interesting, then there is space to be creative. Is the method novel? Is it fun?
Triangle with, from bottom to top, 'Right', 'Interesting', 'Creative', 'Fast'
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Birbbirbbirb1 @birbbirbbirb1.bsky.social · 05/10/2026
Trying something more unique... I've decided to make a project in strawpage where I illustrate stars in the immediate vicinity of the sun. For now there's only 5 stars, but it will receive updates with time. stellarneighbors.straw.page #Astronomy #Space #Stars #SpaceArt
Screenshot of the current systems added in the page.
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🌸 mei♡ 🌸 Comms OPEN! (3/5) @meii-jasmine.bsky.social · 11/10/2026
Months ago, I commissioned these handmade felt dolls from Felusa! Uranus and Neptune are finally real. 🩵💙 They are sooo cute, even Artie loved them! #HeliosphereUnderTheSky
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Chara @astrochara.bsky.social · 10/10/2026
The observer stood still watching as the surrounding rock field undulates around her. Spacetime quivers and shivers, yet she alone remains unmoving.
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András Gáspár @andrasgaspar.bsky.social · 10/10/2026
These are the type of people that wanted to get good grades but not put in the effort to understand the material.
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Kevin Hardegree-Ullman @kevinkhu.bsky.social · 10/10/2026
What is work-life balance when there's time-series photometry everywhere? 🔭
A hotel hallway carpet that has a wavy pattern and stars on the side. It looks like time series data that astronomers use.
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Kevin M. Gill @kevinmgill.bsky.social · 09/10/2026
As part of NASA's efforts to modernize and unify its websites, the raw image websites (Mars 2020, MSL, Psyche, Cassini, InSight) will be unified into a new tool. This will try to maintain as much compatibility as possible, but there will be some necessary changes.
ASA is undertaking an effort to modernize and unify its websites. As a result, there will be some changes to the Raw Images websites (active missions Mars 2020, MSL, and Psyche, and completed missions Cassini and InSIGHT). We are unifying the raw images sites across all supported missions, while attempting to retain as much compatibility as possible. Nevertheless, there will be some changes.

We are aware of the amazing work being done by dedicated enthusiasts and others using these sites, and want to make sure that we minimize disruption to your sites and tools. We therefore invite anyone who is interested to join us in the OpenPlanetary slack, in the #planetary-raw-images channel. We will be previewing our API plans there and - critically - want to hear about your use cases. What features do you most need? What modifications to our plans would make your life easier? What would you like to see on the site that isn’t there? While we can’t promise anything at this point, we will look at all requests to see if they’re doable in our schedule and budget.

You can join OpenPlanetary slack for free here:
https://openplanetary.org/join/
Please let me know if you have any difficulties signing up: Bob.Deen@jpl.nasa.gov

Thanks…

-Bob
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Chara @astrochara.bsky.social · 08/10/2026
Today’s arXiv day: PALTA-1, an ultracool dwarf (not sure if a very low mass star or a brown dwarf) with a candidate sub-Jupiter-mass planet detected by astrometry. arxiv.org/abs/2610.09965
arxiv.org
Astrometric planet search around southern ultracool dwarfs: V. Discovery of the exoplanet candidate PALTA-1 b
We report the discovery of PALTA-1 b, a sub-Jupiter mass exoplanet candidate orbiting the nearby early-L dwarf DENIS-P J1253108-570924 (DE1253-57) located at a distance of ~17 pc. The exoplanet was di...
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Chara @astrochara.bsky.social · 08/10/2026
oh no they forgot the password to the lunar factory
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眠い人。 @nemutai00.bsky.social · 08/10/2026
It really is a star full of mysteries, isn't it? 😂 I'm also really looking forward to the mysteries surrounding Fomalhaut—which I love so much—being solved. 🥰
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Chara @astrochara.bsky.social · 08/10/2026
This reminds me, I hope that planet candidate around Fomalhaut B turns out to be real… And, well, hope we find whatever planet is making Fomalhaut’s disc eccentric and narrow too.
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縫眼 ウツリ。 @xxuturixx.bsky.social · 06/10/2026
太陽系惑星s ✧ 天体擬人化(擬人化というより惑星モチーフOC)
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Chara @astrochara.bsky.social · 07/10/2026
Minecraft’s Create mod, more like too much flint simulator.
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Stephen Bush @stephenkb.bsky.social · 06/10/2026
One thing I find endlessly funny about the rise of AI is that it has revealed that there is a large number of people who believe that the reason they wrote essays at school or university is their teachers were desperately waiting for them to provide a definite answer to “Lear: what’s up with him?”
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toilet bones @toiletbones.bsky.social · 06/10/2026
Found the email I sent when I got accidentally added to the faculty listserv of an orthopedic surgery clinic and nobody would remove me so I sent this email to all faculty/staff/med students and they removed me almost immediately
Hello Bone Colleagues, 
I have invented a new type of ankle and I'm very excited to show it to you. Early raccoon trials suggest a 60% increase in scurrying speed and dramatic increases in fine motor banditry. I know we are not supposed to create super raccoons, but I think you'll change your mind and professional ethics when you see how cute they are. I believe we are on the cusp of a new era in advanced human scurrying because if medical science has taught me anything, it's that improvements in raccoons correspond 1:1 to improvements in humans. 

--
[My name]
Chief Bone Inventor
Chair, Department of Foot and Leg Innovation
Lord Mayor, Musculoskeletal Medicine 
Hartford HealthCare,
The Bone & Joint Institute at Hartford Hospital.
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AAS Press Office @press.aas.org · 06/10/2026
Massachusetts Institute of Technology: Astronomers Catch a Star Slowly Snacking on a Brown Dwarf, 300 Light Years Away news.mit.edu/2026/astrono...
news.mit.edu
Astronomers catch a star slowly snacking on a brown dwarf, 300 light years away
Scientists discovered a star leisurely snacking on a closely orbiting brown dwarf. This is the first observation of a low-mass object slowly and steadily consuming material from another low-mass objec...
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Galaxy Map @galaxymap.bsky.social · 06/10/2026
I've updated my profile page with an endorsement from Anthony Brown, chair of the Gaia Mission Data Processing and Analysis Consortium: kevinjardine.dev/profile/
kevinjardine.dev
Atlas of the Milky Way Kickstarter profile
Explore the Milky Way with Kevin Jardine's detailed cartography.
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Chara @astrochara.bsky.social · 05/10/2026
I want to take this weird elemental abundance patterns and make a rocky planet out of it
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ESA Space Science @science.esa.int · 05/10/2026
Can planets emerge from the deaths of stars? 💀 Astronomers looking through Hubble data from 1999 have identified unusual amounts of niobium in the chemical signatures from a white dwarf. 🔭 🧪
Artist's impression of a gaseous planet in the right foreground, seen mostly in silhouette, orbits a small, white star in the background at left. The star is surrounded by a thin, bright white disk tilted from lower left to upper right. A semi-transparent tail of material comes off the planet toward the upper right. Distant stars dot the black background of space. Credit: NASA, ESA, L. Hustak (STScI)
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Space Telescope Science Institute @stsci.edu · 05/10/2026
NEW: A surprising chemical clue has broken open a Hubble cold case from 1999. Astronomers now suspect the mystery signatures in the data are from a second-generation planet that formed from gas and dust ejected by a dying star: news.stsci.edu/46WpciV 🔭
Illustration labeled Artist’s Concept at bottom right. A gaseous planet in the right foreground, seen mostly in silhouette, orbits a small, white star in the background at left. The star is surrounded by a thin, bright white disk tilted from lower left to upper right. A semi-transparent tail of material comes off the planet toward upper right. Distant stars dot the black background of space.
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AAS Press Office @press.aas.org · 05/10/2026
Georgia State University: Telescope Array Reveals How Nearby Stars Fade From Center to Edge news.gsu.edu/2026/10/01/g...
news.gsu.edu
Georgia State Telescope Array Reveals How Nearby Stars Fade From Center to Edge
The survey of 31 stars shows that widely used stellar-atmosphere models may underestimate how stellar brightness changes across a star’s surface.
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ノビタ @nobita4.bsky.social · 04/10/2026
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Chara @astrochara.bsky.social · 05/10/2026
Tucked away in the corner of a certain galaxy is a suspiciously old M-dwarf. I wonder how they came to be?
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Chara @astrochara.bsky.social · 04/10/2026
Alright time to check for answers…nice to see them mentioned in the article :)))
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Chara @astrochara.bsky.social · 04/10/2026
The two patches sitting at Pacific ocean and Africa makes me think it’s correlated with our two LLSVPs somehow.
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Chara @astrochara.bsky.social · 04/10/2026
This is partially an experiment on sunlike stars’ clothing details (that went okay I think), partially trying out broad shoulder width (it does look a bit weird), and partially a lesson in avoiding being cocky and trying to draw a full scale full body. Still don’t know how to shade corona clothes..
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IAU Working Group on Star Names (WGSN) @iau-wgsn.bsky.social · 04/10/2026
🔵 Puwuh Atarung — ι Psc F7V star in Pisces, named for “battling quails,” preserving an Indigenous astronomical tradition. 🌡️ 6,403 K | 1.25 M☉ | 44 ly 🔬 Surrounded by a cool debris disk. #PuwuhAtarung #IAUStarNames #IndigenousAstronomy 🐦✨
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Chara @astrochara.bsky.social · 04/10/2026
Sol, the star of the Solar System. The constant and dominating, yet distant and hands-off, presence who guides all planets and dusts. Image obtained on 2026-09-21. #ACelestialJournal #art #gijinka #astronomy #space #SolarSystem #Sun #天体擬人化
This artwork depicts a personification of Sol (the Sun). They are standing tall, hands on their hips, head turned away but their eyes looking right back at camera, smiling confidently. Sol has nearly-white hair with barely-visible sunspots, and pitch black irises. The star's clothes consist of the white corona and fuzzy reddish pinkish chromospheric clothes beneath. The corona is decorated with numerous bows and bands.
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Chara @astrochara.bsky.social · 04/10/2026
Sol, the star of the Solar System. The constant and dominating, yet distant and hands-off, presence who guides all planets and dusts. Image obtained on 2026-09-21. #ACelestialJournal #art #gijinka #astronomy #space #SolarSystem #Sun #天体擬人化
This artwork depicts a personification of Sol (the Sun). They are standing tall, hands on their hips, head turned away but their eyes looking right back at camera, smiling confidently. Sol has nearly-white hair with barely-visible sunspots, and pitch black irises. The star's clothes consist of the white corona and fuzzy reddish pinkish chromospheric clothes beneath. The corona is decorated with numerous bows and bands.
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Chara @astrochara.bsky.social · 03/10/2026
sad :(
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Chara @astrochara.bsky.social · 03/10/2026
I’m interested, tell me more.
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Corey S. Powell @coreyspowell.bsky.social · 03/10/2026
In astronomy, modest data points can hide stories of extreme drama. Here, each purple and white dot indicates a place where planets are colliding & destroying each other, releasing huge clouds of debris. (Artist's interpretation at right.) 🧪🔭 science.nasa.gov/missions/web...
Left: By investigating the compositions of extreme debris disks, scientists inferred that silica-rich disks are produced by high-energy impacts of Mars-sized objects, while silica-poor disks are created by less energetic events from Moon-sized bodies.
Right: The types of collisions within young stellar systems known as extreme debris disks are relevant to scientists’ understanding of our own solar system, which is thought to have undergone similar impact events that created our Moon and shaped Earth’s initial state.
Artwork: NASA, ESA, CSA, Joseph Olmsted (STScI)
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Paul Voosen @voosen.me · 02/10/2026
Update on this: Alan Stern, New Horizons's PI, just told me that the instruments will stay on until Oct 12, when the first opportunity comes to send instructions to turn them off in this new fiscal year. So there's still some time.
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Taylor Smith @taylorjsmith.bsky.social · 01/10/2026
I’ve known about this for a couple of weeks, but now I can share: as of today, arXiv is rate-limiting submissions to two per month. And as a mod, I have to admit this is a necessary move (at least temporarily). blog.arxiv.org/2026/10/01/u...
blog.arxiv.org
Fair Moderation, Equitable Access, and AI: arXiv’s Updated Rate Limit Policy
arXiv, and the scientific community at large, are facing a watershed moment. Scholarly publishing is currently changing at a rapid pace, and we are seeing a…
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fyfp7 @fyfp7.bsky.social · 26/09/2026
OC
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Chara @astrochara.bsky.social · 02/10/2026
In theory, it is possible for Epsilon Eridani b (AEgir) to be the one creating the slight eccentricity observed, or it may be another undiscovered "ε Eri c" planet, previously proposed in older works. It contrasts with many other debris discs that appear to be more perturbed, eg. Fomalhaut's.
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Chara @astrochara.bsky.social · 02/10/2026
On today's arXiv: the eccentricity of the debris disc of Epsilon Eridani arxiv.org/abs/2610.00462 The belt is found to be nearly circular, suggesting it consists of dynamically cold planetesimals that haven't been strongly perturbed. #astronomy #space #star #debrisdisk #EpsilonEridani
arxiv.org
How eccentric is the debris disk of epsilon Eridani? ALMA reveals a near-circular belt
The nearby (3.2 pc) K2V star $ε$ Eridani hosts the closest detected debris disk and an exo-Jupiter analog ($ε$ Eridani b). In this work, we reanalyse ALMA Band 6 (1.29 mm) observations of $ε$ Eridani ...
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Chara @astrochara.bsky.social · 02/10/2026
I had expected that, thank you for confirmation. I wonder what stars are visible in the background? I know hot stars are very bright in UV. When you put the three together, it really drives home how different this wavelength is from the visible light we’re used to.
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Chara @astrochara.bsky.social · 02/10/2026
自分のプロジェクトに取り組んでいるときも、同じことに気づきました……星って、本当に不思議ですね…… I noticed that when I work on my own project too...stars really are mysterious...
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Bruce Macintosh @bmacastro.bsky.social · 01/10/2026
This graph represents probably more than a hundred thousand hours of work by our community. Every year when I look at it I think our current proposal model is broken.
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András Gáspár @andrasgaspar.bsky.social · 02/10/2026
It worked! We observed a calibrator through the mask, but off the coronagraphic spot, in order to flux calibrate the system. We have transmission! We will get proper behind-the-mask observations in a few months. How exciting! We officially have another optical wavelength coronagraph in space! 🔭🪐
Images of the calibrator source through F070W, F090W, F115W, and F150W filters. These are only level 2 images, single position, not post-processed. This is what I could quickly grab.

The dataset is PUBLIC! Go have at it, if you wish.
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Chara @astrochara.bsky.social · 01/10/2026
Interesting how Mars-sized bodies are referred to as "planetesimals" in here. Reminds me of someone who talked about how Mars is a glorified asteroid, hah
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András Gáspár @andrasgaspar.bsky.social · 01/10/2026
This was posted on LinkedIn. Looks like a new record, possibly 3500 proposals. Good luck everyone on the JWST roulette. We really should have made two.
JWST submissions
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ESA Space Science @science.esa.int · 01/10/2026
A crash course on planet-shattering collisions, from Webb 🌏💥 A Mars-sized world called Theia once smashed into Earth, leading to the creation of our Moon. Now, Webb has examined a class of young stellar systems that show signs of similar upheavals 👉 esawebb.org/news/weic2618/ 🔭 🧪
Artist’s concept of a star and its debris disc against the black background of space. The star is in the background, right of center, and depicted as a small, luminous sphere. The debris disc is a large blue ring that encircles the star. The debris disc is angled toward the viewer, so that the portion nearest to the viewer extends beyond the bottom frame of the illustration. Many dark, rocky fragments are scattered throughout the debris disc. In the foreground, toward the left, is a small planetary embryo colliding into the left side of a larger spherical object. The impact site glows bright yellow and orange and has a mottled appearance, as though chunks of both colliding bodies are breaking up and being destroyed. Orange-yellow streams of vapor extend outward from the collision area. Behind the debris disc and its star are many small stars in the background. Credit: NASA, ESA, CSA, J. Olmsted (STScI)
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Chara @astrochara.bsky.social · 01/10/2026
Some four million years ago, two superstars flew past our neighbourhood: Adhara and Mirzam. Both extremely bright and massive stars, to this day they remain one of the brightest stars in each other’s sky. #ACelestialJournal
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Katie Mack @astrokatie.com · 30/09/2026
One of the most harrowing things about academia, when you're a grad student, is how vulnerable you are to how you're perceived by more senior researchers. Your career advancement depends on confidential letters of reference & private discussions amongst faculty. You have no information or control.
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