iiinova — where your digital self keeps evolving

Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 12/09/2026

I serendipitously discovered a previously unknown nova candidate in M31 from archival Hubble Space Telescope (HST) images; it has now been designated AT 2000gq = M31N 2000-02a! 🔭 www.wis-tns.org/object/2000gq

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 30/07/2026

In May 2022, I discovered a planet candidate via Planet Hunters TESS on @zooniverse.bsky.social . Today it is officially confirmed as TOI-5628 Ab, and our paper published in ApJL. I am grateful to Dr. Tianjun Gan for inviting me as a co-author. iopscience.iop.org/article/10.3... 1/9 🔭 🧪 #exoplanet

Artist's impression of the TOI‑5628 system. In the upper left is the exoplanet TOI‑5628 Ab, in the lower right is the red dwarf TOI‑5628 A, and in the upper right is the white dwarf TOI‑5628 B.

(This image was originally an artist's impression of another exoplanet, NGTS‑1b, image credit: University of Warwick / Mark Garlick. After I had Grok add the white dwarf in the upper right, it fits the TOI‑5628 system very well.)

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 29/07/2026

Swift: Finally, someone's coming to save me! Link: Wait, then who's going to save me?! 🔭

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 05/04/2026

I used the SPIRIT 3 telescope (0.32-m f/8 Corrected Dall-Kirkham+CCD, Clear filter) at the @icrar.bsky.social's Mardella Observatory (MPC code E29) to remotely observe the #ArtemisII Orion spacecraft and the ICPS upper stage at approximately 20:30 on April 2, 2026. #astro

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Reposted by Jingyuan Zhao (赵经远)

AAS Nova @aasnova.org · 10/10/2025

A recent study finds that a recurrent nova may be powered by a rare Be star–white dwarf binary system, broadening the scope of possible novae origins. aasnova.org/2025/10/10/r... 🔭🧪

aasnova.org

Rapid Recurrent Nova May Be Challenging Perceptions

A recent study finds that a recurrent nova may be powered by a rare Be star–white dwarf binary system, broadening the scope of possible novae origins.

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 06/10/2025

#astro My collaborators and I discovered M33N 2025-10a, and I also discovered M33N 2011-10a from Palomar Transient Factory (PTF) archive images, all of which were confirmed as outbursts of M33N 2021-08a. These three outbursts make M33N 2021-08a the first confirmed recurrent nova in M33.

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 03/07/2025

Interstellar Comet 3I/ATLAS = C/2025 N1 (ATLAS) = A11pl3Z Observations were made by me using Alnitak Remote Observatories robotic telescope network, Alnitak Research Telescope Access (ARTA) program. 🔭

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Reposted by Jingyuan Zhao (赵经远)

astrafoxen @astrafoxen.bsky.social · 12/03/2025

I spent almost 2 hours painstakingly copying the orbits of all 128 Saturnian moons from the announcement MPEC and reformatting them for visualization... Behold, here are the orbits of ALL 128 MOONS OF SATURN. This isn't just a moon system—it's a literal asteroid belt around Saturn! 🧪🔭☄️

Saturn's outer moon system viewed from the north pole of Saturn. Moons orbiting in clockwise (retrograde) orbits have red-colored orbits while moons orbiting counterclockwise (prograde; in the direction of Saturn's spin) are colored blue. With so many irregular moons occupying the same region and intersecting each other, the irregular moon system looks like a donut-shaped vortex surrounding Saturn.

Each of the 128 new moons is highlighted in the diagram with a white point representing their location, and a brighter-colored orbit. Previously-known moons of Saturn are included in the diagram, but are colored darker.

The regular moons of Saturn are colored turquoise and the outermost regular moons (Titan, Hyperion, and Iapetus) labeled with their name.

At the lower left corner are scale indicators to help visualize the scale of Saturn's irregular moon system. A small gray circle at the left left corner is shown to represent the diameter of the Earth-Moon orbital distance. A linear scale bar is labeled "10 million km" (6.2 million mi) to give a standard distance.

View of Saturn's irregular moon system, tilted at an angle to show the toroidal belt-like shape of the system. Each moon is labeled with their names in turquioise. Red orbits = retrograde direction, and blue orbits = prograde direction. Turquoise curves closer to the center are orbits of Saturn's regular moons.

Side view of Saturn's irregular moon system, tilted at an angle to show the toroidal belt-like shape of the system. Red orbits = retrograde direction, and blue orbits = prograde direction. Turquoise curves closer to the center are orbits of Saturn's regular moons.

The irregular moons of Neptune (dark green) are also visible in the background to the right of Saturn. The horizontal red line protruding right of Saturn is the orbit path of Saturn.

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 31/01/2025

On the night of Jan. 29, I remotely observed the Gaia spacecraft using the SPIRIT 3 telescope at @icrar.bsky.social's Mardella Observatory (IAU code E29). Farewell to this incredible mission that revolutionized our understanding of the Milky Way! #Gaia #GBOT #astro

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 13/12/2024

Here's the discovery image I took remotely from the Burke-Gaffney Observatory @BGO.observatory.social.ap.brid.gy . Follow-up photometric and spectroscopic observations of this most recent eruption of M31N 2008-12a are strongly encouraged.🔭

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 02/12/2024

Yesterday, I remote observed the transient TCP J06330104+0303350= Gaia DR3 3130088774241620608 using the Burke-Gaffney Observatory (BGO @BGO.observatory.social.ap.brid.gy ). Based on my observations, it has been confirmed as an eclipsing WZ Sge-type dwarf nova with an orbital period of 0.05786 days🔭

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 10/10/2024

Today is paper day! Recently, I discovered two outbursts of the unusual recurrent nova M31N 2017-01e, one new (M31N 2024-08c), one old (M31N 2014-06c). After discussions with Prof. Allen Shafter from San Diego State University, an RNAAS paper was published today. 🔭

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 26/09/2024

Bluesky now has over 10 million users, and I was #1,402,291!

A virtual certificate with text "Celebrating 10M users on Bluesky, #1,402,291, Jingyuan Zhao (赵经远) ‪@astrozhao.bsky.social‬, joined on Oct 8, 2023"

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 08/09/2024

#astro How romantic! A citizen science project helps anime characters realize their dreams in the real world!

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 24/07/2024

According to the prediction, the recurrent nova T Corona Borealis (T CrB) will outburst in the near future, and global monitoring is very necessary. We sincerely invite amateur astronomers around the world to join our initiative on monitoring T CrB, please read the initiative below.🔭 🧪

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 13/07/2024

Our amateur team has discovered an interesting eclipsing variable star near SH 2-241 nebula from ZTF archive data. It has a period about 830 days, more than 40% in occultation, with a bright peak at the centre of the occultation. 🔭🧪 Image Credit: DSS、PanSTARRS DR1

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 05/06/2024

WNYC's Radiolab and IAU are naming asteroid 164207, Earth’s quasi-moon. Submit your favorite name now! Event Details: radiolab.org/moon-officia..., www.iau.org/news/pressre... Nomination Website: woobox.com/wc2qxd 🔭🧪

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Reposted by Jingyuan Zhao (赵经远)

AAS Nova @aasnova.org · 17/05/2024

With T Coronae Borealis expected to have an outburst any day now, recurrent novae are in the news. Recently, researchers reported their investigation of a recurrent nova that brightens every year. aasnova.org/2024/05/17/s... 🔭🧪

aasnova.org

Studying a Guest Star's Annual Appearances - AAS Nova

With T Coronae Borealis soon rising to naked-eye visibility, recurrent novae are in the news. Recurrent nova M31N 2008-12a is the subject of today's article.

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Reposted by Jingyuan Zhao (赵经远)

Ben Monreal @benmonreal.bsky.social · 17/04/2024

hep-ex paper of the day: for stars within 500pc of us, SuperK+KamLAND are sensitive to supernova neutrinos---but not just from the core collapse! They'll also see the final hours (up to a day!) of runaway nuclear heating! AND the signal is strongly mass-hierarchy sensitive via the MSW effect! 🧪⚛️

arxiv.org

Combined Pre-Supernova Alert System with Kamland and Super-Kamiokande

Preceding a core-collapse supernova, various processes produce an increasing amount of neutrinos of all flavors characterized by mounting energies from the interior of massive stars. Among them,...

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 11/04/2024

In an urban area with serious light pollution, the Seestar S50 was used to monitor the upcoming outburst of the recurrent nova T CrB. Because Seestar S50 doesn't have this object in its database, I chose GOTO to the nearby galaxy IC 4587, which places T CrB almost perfectly at the center. 🔭

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Reposted by Jingyuan Zhao (赵经远)

Laura Helmuth @laurahelmuth.bsky.social · 25/03/2024

Wow oh wow oh wow an incredibly bright cyclical nova erupts every 80 years and looks like a new star -- and it's about to happen again 🧪 🔭 www.scientificamerican.com/article/this...

scientificamerican.com

This Nova Will Soon Erupt as a Once-in-a-Lifetime ‘New Star’ in the Night Sky

A nova called T Coronae Borealis spectacularly erupts every 80 years. Your only chance to see it will come any day now

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Reposted by Jingyuan Zhao (赵经远)

『恋する小惑星』を追体験！Webアプリ「COIAS」（アストロアーツ） 900名以上のユーザーによって利用され、7万を超える新天体候補の捜索に成功、うち45天体について仮符号が習得され、このうち6つは太陽系外縁天体（本文より） www.astroarts.co.jp/article/hl/a...

astroarts.co.jp

『恋する小惑星』を追体験！Webアプリ「COIAS」

未発見の太陽系小天体を探せるアプリ「COIAS」が一般公開。あなたも太陽系小天体を探してみませんか？

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 13/02/2024

Citizen Science in Search of Asteroids 🔭 🧪

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 06/02/2024

🔭 We successfully observed the Triton occultation event on October 6, 2022 at Yanqihu in Beijing, China. A paper using our data has been accepted by Astronomy & Astrophysics (A&A), which I am a co-author. This paper analyzes data from the CHEOPS Space Telescope, …… (1/2)

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 30/01/2024

A low-resolution spectrum of T CrB acquired by the Xingming Observatory yesterday morning shows the Balmer emission lines and the TiO molecular absorption lines, etc. Taken by Xing Gao, and processed by me.

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Reposted by Jingyuan Zhao (赵经远)

CosmicRami 🏳️‍🌈🏳️‍⚧️ @rami.spaceaustralia.com · 10/01/2024

Ohhh, this is fun 👀 Two papers report on a declining Type Ic supernova light curve exhibiting ~12 day periodicity in NGC 157 (23 Mpc). Evidence of binary survival post-blast, with an accreting new compact remnant companion. www.nature.com/articles/s41... iopscience.iop.org/article/10.3... 📸🔭

nature.com

A 12.4-day periodicity in a close binary system after a supernova - Nature

A stripped-envelope supernova, SN 2022jli, shows 12.4-day periodic undulations during the declining light curve, and narrow Hα emission is detected in late-time spectra with concordant periodic veloc...

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Reposted by Jingyuan Zhao (赵经远)

Dr Dan Jones @hookean.bsky.social · 08/01/2024

Physics teachers. This site is great for Astrophysics and investigating stellar evolution in particular! #ITeachPhysics starinabox.lco.global

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 14/12/2023

🔭Today is paper day! Our Nature paper on SN 2023ixf has finally been published online: www.nature.com/articles/s41... ! I am honored to be listed as a co-author. Much the data for this paper came from amateur telescopes, showing that even small facilities can produce top-notch scientific research.

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 29/11/2023

M31N 2013-10c is a Recurrent Nova in M31 🔭 “we conclude that M31N 2023-11f is a subsequent eruption of the newly-identified recurrent nova M31N 2013-10c. Additional observations of this most recent eruption of M31N 2013-10c are strongly encouraged" www.astronomerstelegram.org?read=16354

astronomerstelegram.org

The Astronomer's Telegram: We're Sorry!

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Reposted by Jingyuan Zhao (赵经远)

Sera Markoff @profsera.bsky.social · 21/11/2023

Citizen scientists 🧪🔭 Please help us find new black holes with this amazing new app! Download to help identify new transients and to train our system. You will be a coauthor, and top classifiers will even be able to trigger follow up observations with real telescopes! www.dbhc.nl/news/black-h...

dbhc.nl

Black Hole Finder App Live! - News | Dutch Black Hole Consortium

Black Hole Finder App

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 29/10/2023

Partial Lunar Eclipse on October 28, 2023 🔭

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Jingyuan Zhao (赵经远) @astrozhao.bsky.social · 15/10/2023

Mark your calendars! 🔭 A new paper by Judhajeet Basu et al. summarizes the six most recent outbrurst of M31N 2008-12a and predicts the time range of the next three outburst. arxiv.org/abs/2310.06586

All known eruption dates of M31N 2008-12a till 2022

The 3σ upper and lower ranges of the
recurrence period

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Reposted by Jingyuan Zhao (赵经远)

Luke Bones 🦴 @lukemeister.bsky.social · 21/07/2023

Only a few comets have been seen during total eclipses of the Sun. Alan Hale, codiscoverer of comet Hale-Bopp, wrote a nice article about them. That's it for now! 6/6

rocketstem.org

Special Topic: Solar Eclipse Comets

One of the most spectacular and awe-inspiring celestial sights is that of a bright, long-tailed comet – a “Great Comet,” the subject of a previous “Special Topics” presentation. On average, ...

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