New 2.0 m TTT3 telescope images of comet C/2025 R2 (SWAN) suggest a possible nucleus fragmentation. Between Oct 19 and Nov 2, the once-symmetric central condensation became elongated, revealing a distinct secondary component — evidence the nucleus may be splitting. Credits: ttt.iac.es, tst.iac.es

☄️Comets in November Binocular-visible C2025 A6 Lemmon still shines at mag 4, and C2025 R2 SWAN at 7.5 — both fading. Interstellar comet 3I ATLAS reappeared brighter at mag 10 observable with small telescopes 🔭. C2025 K1 ATLAS survived perihelion appears strange More 👇 cometografia.es/cometas-visi...

I’ve made a short video showing comet C/2025 K1 (ATLAS) as it passed perihelion in November 8, 2025 — which, by the way, it has survived. It was observed through the LASCO-C3 coronagraph aboard the SOHO solar space telescope, and I think it went largely unnoticed. #astronomy #comet

Comet C/2025 A6 (Lemmon) captured with the TST and TTT telescopes from Teide Observatory A rewarding challenge working with exceptional data and professional collaboration Detail 👇 ℹ️ cometografia.es/2025a6-lemmo... Credits: Pepe Chambo, Miquel Serra Ricart tst.iac.es | ttt.iac.es | iac.es #astronomy

In addition to Lemmon we have another bright comet at its peak of magnitude 6, visible with binoculars from anywhere in the world This is C/2025 R2 (SWAN), and here’s its light curve. Observable without moonlight (blue band) at the beginning of the night: ℹ️ cometografia.es/cometas-visi... #astronomy

One of our imaging and animation works of comet 21P/Giacobini-Zinner, captured from Teide Observatory 🔭, illustrates the origin of the Draconid meteor shower in NASA’s October edition of the What’s Up video series (1:23 to 1:31) 👇 www.youtube.com/watch?v=d-Md...

☄️ Starting tomorrow, October 13, we’ll have the most favorable days to observe with binoculars or image the comet C/2025 A6 (Lemmon). It will be visible at dusk, low over the northwest horizon, around magnitude 5. All the info here 👇 ℹ️ cometografia.es/cometas-visi...

📈Upcoming Bright Comets. Updated and manually checked every week 🔄 based on REAL measurements 📏 from experienced observers, not on theoretical calculations like most apps do. You can always find it here 👇 cometografia.es/proximos-com... #astronomy #comet

☄️Comets in October With two peaks‼️ C/2025 A6 Lemmon could become visible to the naked eye 👁️ and C/2025 R2 SWAN with binoculars 👀 while we await the reappearance of C/2025 K1 ATLAS 🔭 and the interstellar 3I ATLAS ✨ All the details here 👇 ℹ️ cometografia.es/cometas-visi... #astronomy

☄️New comet C/2025 R2 (SWAN) is now becoming visible from the Northern Hemisphere at dusk, low in the west-southwest horizon 🌄 With a magnitude 6 brightness, it can be seen with binoculars 👀 or captured with telephoto lenses 📷 🟫Not visible. 🟦Moonless. ℹ️ cometografia.es/cometas-visi...

📸🔭 October promises to be spectacular for comets: ☄️ C/2025 A6 (Lemmon) will reach magnitude 3–2 and be visible to the naked eye in dark skies. ☄️ C/2025 R2 (SWAN) will shine in binoculars, with long ion tails in photos. We’ll keep following them day by day on these feeds so you don’t miss the show ✨

📸Comet C/2025 K1 (ATLAS) from Atacama a few days ago 🔭 just before becoming unobservable due to solar conjunction ☄️🌞 With a nice turquoise coma and two tails. If it survives, it will be visible again from the northern hemisphere at the end of October 🐻‍❄️ ℹ️ cometografia.es/2025k1-atlas... #astrophoto

☄️Comet C/2025 A6 (Lemmon) could be the brightest in a year, reaching mag 2 🔭👀 Here’s its light curve, with moonless nights in blue. After Nov 12 (red), it won’t be observable. From the Southern Hemisphere below 20°S, it won’t be visible this apparition. More info 👇 cometografia.es/cometas-visi...

📸 Comet C/2025 A6 (Lemmon) three weeks ago, just as it began developing its tail ☄️ Imaged on August 30: magnitude 11, well-condensed green coma, ion tail emerging toward the west (2.5′). Posted late, trying to catch up 😓 ℹ️ cometografia.es/2025a6-lemmo... #astronomy #comet #astrophotography

All information about the new comet C/2025 R2 (SWAN) is now complete, including forecast, visibility by latitude, detailed sky charts (visual and PDF), and always up-to-date ephemerides. Subscribe for full access on the website: cometografia.es/cometas-visi...

Light curve of the new comet C/2025 R2 (SWAN) ☄️ According to it, the comet will stay between magnitude 7 and 6, observable with binoculars 👀, until its closest approach to Earth 🌍 at the end of October. More info here 👇 ℹ️ cometografia.es/cometas-visi... #astronomy #comet #swan #cometwatch

Going back and forth with the SWAN comet images full of donuts... This morning I had a celestial inspiration — remember the misframed shots I took the day before? What if... they could be used to build a synthetic flat...? 🤔 ⚙️⚙️⚙️⚙️ Voilà! It works! 🎉 #astronomy #comet #swan #astrophotography

☄️Cometas en Septiembre, actualización 🔄 El recién descubierto cometa C/2025 R2 (SWAN) sorprende siendo visible con binoculares en magnitud 7 y acercándose a la Tierra. Además tenemos el C/2025 A6 (Lemmon), C/2025 K1 (ATLAS) y el interestelar 3I/ATLAS 👇 cometografia.es/cometas-visi...

I’ve got the L and RGB masters ready from yesterday’s shots of comet #SWAN25B. Let’s see what I can do with all those donuts 🍩 caused by overexposure 🌄 that the flats 💡 can’t fix. As for the scratches, let’s not even mention them — that’ll be half an hour of work courtesy of Eloncio.

🚨 New comet in the sky! and new post in my blog 📣 SWAN25B, discovered by Vladimir Bezugly in SOHO images, is already visible with binoculars and approaching 🌞☄️🔭🌍 Find all the details and how to locate it 👇 ℹ️ cometografia.es/nuevo-cometa... #astronomy #comet #SWAN25B

🚨 New bright comet SWAN25B ☄️ at mag 7.4 with a >1.7° ion tail! In Virgo, visible after sunset from the Southern Hemisphere 🌍 (very hard from the North). Orbit still uncertain. Imaged it from Atacama—coma slipped out 😅 but the huge tail is clear. Tomorrow I’ll try again 🔭 and share more! 😉 #astronomy

📸 In the early hours of August 30 I captured my first image of comet C/2025 A6 (Lemmon) ☄️ It shows surprising activity: magnitude 11 with a striking green coma. Excited to keep observing its evolution in the coming days 🔭 ℹ️ cometografia.es/2025a6-lemmo... #astronomy #comet #astrpphotography

And here is the interstellar comet 3I/ATLAS that I captured last week from home. I was only able to stack 7 frames so that the nearby star wouldn’t interfere and to be able to measure the comet’s brightness. At magnitude 15.4 with a coma of 0.6 arcminutes ℹ️ cometografia.es/cometas-visi... #astronomy

Se lo van a tener que mirar bien en @bsky.app si no quieren cagarla. Está lleno de perfiles falsos. Se lo curran más simulando cuentas verdaderas, pero no cuela...

📸 On Aug 21 I also imaged comet C/2025 K1 (ATLAS) ☄️ from home. Poor transparency and wildfire smoke ❤️‍🔥😢 but still showing a 1.5′ coma and 5.5′ tail in a field with small galaxies 🌀 between Serpens and Hercules 👇 ℹ️ cometografia.es/2025k1-atlas... #astronomy #comet #astrophotography

☄️ Comets in September 🔭 Comet 2025A6 Lemmon with binoculars, and visible to the naked eye in October? 👀 Is 2025K1 ATLAS disintegrating on its way to the Sun? 🌞 Will the interstellar 3I ATLAS attack us with turbolasers? ⚡️ All the answers (and much more) here 👇 cometografia.es/cometas-visi...

Dejo un enlace a mi avance sobre las muy interesantes novedades cometarias dentro del magnífico Astro News de Septiembre del canal @astrotivissa 👇 youtu.be/L_ZrCCBn6wk?...

📸 Imaged comet C/2025 K1 (ATLAS) ☄️ on August 21, near the star 9 Herculis 🌟. Shining at mag 12.5, with a greenish 2′ coma and a ~20′ tail. It’s heading toward perihelion in October, with a high risk of disintegration ⚠️ ℹ️ cometografia.es/2025k1-atlas... #astronomy #cometwatch #comet #astrophotography

Desmontando las fábulas a propósito del cometa interestelar 3I/ATLAS, con Marc de Astrotivissa, Kacper Wierzchoś y Jordi Camarasa 👇 youtu.be/u4Gz6RYjLIQ?... #astronomy #comet #cometwatch #3I #ATLAS #intestellar

The interstellar comet 3I/ATLAS barely changed between July 20 and August 15: a bit brighter (mag 16.5) and a slightly larger. Its evolution is slower than expected, though it could still increase in activity and become visible in amateur telescopes🔭. These are my first comet photometry using Tycho.

📸 I photographed comet C/2025 K1 (ATLAS) ☄️ again on July 21. Since my previous image, in just 15 days it gained a magnitude and its tail stretched to 3.5'. It's now entering the Milky Way 🌌, in Vulpecula 🦊. Still getting more interesting❗️🔭👇 ℹ cometografia.es/2025k1-atlas...

☄️ Comets in August The scene starts to get exciting with the arrival of comet C/2025 K1 (ATLAS), which will brighten quickly throughout August, reaching magnitude 11 — within reach for astrophotography and visual through medium-sized telescopes 🔭. Full details here 👇 cometografia.es/cometas-visi...

☄️ Interstellar comet 3I/ATLAS is the oldest ever observed — over 7.6 billion years old. It may develop a tail and become visible in amateur telescopes 🔭 ℹ️ Details, recent images, and visibility info here 👇 cometografia.es/3i-atlas-vis... #astronomy #comet #interstellar #3IATLAS #cometwatch

📷 Comet C/2025 K1 (ATLAS) This comet continues to brighten rapidly. I imaged it last night at magnitude ~14, showing a 3.5-arcminute ion tail. If the current trend holds, it could reach magnitude 8 by October — possibly becoming visible in binoculars from dark skies. #astronomy #cometwatch #comet

☄️ Comet C/2025 K1 (ATLAS) imaged a few days ago — still showing a small tail and magnitude 15. If it survives perihelion and maintains its activity, it could brighten to mag 7.5 and become visible with binoculars in October❗️👇 #astronomy #comets #cometwatch #astrophotography

El sábado 19 de julio a las 20:30 daré en el Centro Cultural de Manzanera (Teruel) la charla “Cometas, mundos de la nube de Oort”, con entrada libre. También hablaremos del recién descubierto cometa 3I/ATLAS, venido de otro sistema estelar. 🌌☄️🔭

☄️ A visitor from another star is approaching! Comet 3I/ATLAS is arriving from interstellar space ✨ and will reach its peak later this year. A unique opportunity for observation 🔭 and photography 📸 by amateurs. 📢 Discover it in my new article 👇 cometografia.es/cometa-inter... #astronomy #comet #3i

☄️ Comet 29P is fading from the Northern Hemisphere sky... but I captured it for you from Australia 🦘 still showing its expansive coma after the May outburst. One of my last images of this centaur 🏹 before its solar conjunction 🌞 ℹ ️ cometografia.es/29p-schwassm... #cometwatch #astronomy

This is how comet C/2025 F2 (SWAN) said goodbye: my last image at dawn on April 18, barely above the horizon as its nucleus disintegrated and its tail faded away. A spectacular ending for this fleeting visitor ☄️🔭 ℹ cometografia.es/2025f2-swan-...

C/2025 K1 (ATLAS), new comet from the outer edge of the Oort Cloud, will reach perihelion in October and may reach magnitude 7.5. If it survives its passage near the Sun, it could become visible with binoculars from the Northern Hemisphere by the end of the year 🔭 cometografia.es/nuevo-cometa...

🔭☄️Comets in June Comet 29P/Schwassmann-Wachmann is fading and can still be observed with telescopes through imaging early in the night. On the other hand, we say farewell to the short-lived C/2025 F2 (SWAN), which has disappeared from view following its disintegration cometografia.es/cometas-visi...

📸After its latest outburst, I captured comet 29P/Schwassmann-Wachmann again, showing a new expanding cloud wrapped in a faint coma, against a background filled with small galaxies in Leo. 📷Atik 383L+ 🔭TS-Photon 8" f/3.7 🎞️52 min 🏡OAV, Valencia ℹ ️ cometografia.es/29p-schwassm... #cometwatch

Hoy toca #charladelmartes en la AAM. En ésta ocasión contamos con @pepechambo.cometografia.es para hablarnos de OBSERVACIÓN Y FOTOGRAFÍA DE COMETAS. Detalles en el ALT de la imagen 🔭 Solo on-line, a las 19:30 (17:30 UT), en nuestro canal: www.youtube.com/live/anpVgjG...

☄️🔭 El cometa 29P/Schwassmann-Wachmann tuvo un nuevo estallido el 13 de mayo. En esta imagen que obtuve ayer día 19 aún se aprecia una tenue coma exterior de la actividad previa, junto a una nueva condensación central en expansión, con forma asimétrica. ℹ️ cometografia.es/029P/

El 6 de junio daré una clase sobre preprocesado fotográfico de cometas, dentro del Curso online de Astrofotográfico organizado por la Federación de Asociaciones Astronómicas de España. Creo que quedan algunas plazas, inscríbete aquí ✍️👇 federacionastronomica.es/index.php/cu... #astronomia #astrofoto

Periodic comet 10P/Tempel returns in one of its most favorable apparitions. It may reach magnitude 6.5 from July to August 2026, observable with binoculars from both hemispheres, though best seen from the southern hemisphere, where it will reach the zenith cometografia.es/10p-tempel-r... #astronomy

Taking advantage of clear nights a week ago: comet 29P/Schwassmann-Wachmann continues to fade slowly, now down to magnitude 11.7. It shows an asymmetric 6′ coma and a nearly stellar false nucleus. 📷Atik 383L+ 🔭TS-Photon 8" f/3.7 🎞️54 min 🏡OAV, Valencia ℹ️ cometografia.es/29p-schwassm... #cometwatch

☄️Cometas en Mayo Con el C/2025 F2 (SWAN) en desintegración y bajando a magnitud 9, queda saber cuál será su aspecto al reaparecer en cielos australes en mayo. Mientras, el 29P/Schwassmann-Wachmann seguirá observable en magnitud 12 desde todo el mundo 👇 cometografia.es/cometas-visi...

☄️Comets in May With C/2025 F2 (SWAN) disintegrating and fading to magnitude 9, it remains to be seen what it will look like when it reappears in southern skies in May. Meanwhile, 29P/Schwassmann-Wachmann will remain observable at magnitude 12 from around the world 👇 cometografia.es/cometas-visi...

📷 I taken this image of comet C/2025 F2 (SWAN) on April 8, when reached its peak brightness before it began to disintegrate. Despite its low altitude, poor transparency, and twilight conditions, its faint tail and details can still be seen 👇 cometografia.es/2025f2-swan-... #astronomy #cometwatch