iiinova — where your digital self keeps evolving

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Astropierre @astropierre.com · 29/09/2026

Après avoir fabriqué leurs propres papyrus enroulés et carbonisés, des scientifiques sont arrivés à déchiffrer le texte, en détectant le plomb contenu dans l'encre grâce à la tomographie par rayons X et à la fluorescence X. journals.plos.org/plosone/arti...

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Yvette Cendes @whereisyvette.bsky.social · 29/09/2026

We made the NY Times!!! 🤩 🔭🧪🎢

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ESO @eso.org · 19/08/2026

One for the record books 🏅 ESO's Very Large Telescope Interferometer has discovered the fastest known star in our galaxy. Named S301, it orbits Sagittarius A* — the supermassive #BlackHole at the centre of the #MilkyWay — reaching speeds of 25 000 kilometres per second. 🔭 🧪 1/3

Four observations from 2021, 2023, 2024 and 2025 showing star S301 moving along its orbit around Sagittarius A*. A small circle below the images shows the size of Neptune’s orbit for scale. Image by ESO/GRAVITY collaboration.

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Alain Rouen 🇪🇺 @alrouen.eurosky.social · 27/09/2026

Heart & Soul ❤️ IC 1805 + IC 1848 in a 3-panel HOO mosaic. Two nebulae, one frame, and 3 nights spent collecting photons from ~7,500 light-years away ✨ #Astrophotography What do you see @kat-astro-bot.bsky.social ?

The heart and soul nebula, in HOO processing, showing red and bluish hues

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Lt Nono @ltno2.bsky.social · 27/09/2026

Full #Moon & #astrophotography don't make a good mix, except on star clusters or emission nebulae...so here goes for the Persei double cluster (NGC884 & NGC869) and the Horse Head #nebula (IC434) in H-alpha. Images shot yesterday. Aren't those cute 😊? What do you see @kat-astro-bot.bsky.social ?

Picture of the Persei double star cluster shot from a backyard. The clusters form two lumps of stars around the center of the image.

A black and white picture of Horse Head nebula (IC434) shot in H-alpha with the Flame nebula to the side of the picture. Wisps of matter are leaving the hydrogen region and leaving kind of darker streaks on the background.

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Yvette Cendes @whereisyvette.bsky.social · 21/09/2026

If @science.org is covering it, I guess I should share something here- we have for the first time definitively detected radio emission from a planet around another star! 🔭🧪🎢 What does this mean? Details in thread! (But TL;DR- still not aliens) 🧵 www.sciencenews.org/article/exop...

sciencenews.org

First radio waves seen from an exoplanet hint at otherworldly auroras

The gas giant Beta Pictoris b, about 63 light-years away, has the mass of 10 Jupiters and a magnetic field thousands of times as strong as Earth’s.

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Cédric Champeau @melix.champeau.me · 21/09/2026

J'ai pesé le soleil depuis mon jardin et j'ai trouvé 1.989 x 10³⁰ kg. La valeur communément admise, c'est 1.988 x 10³⁰ kg. Comment j'ai fait ? ⬇️

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Dr Elodie Chabrol @eloscicomm.bsky.social · 18/09/2026

✨ Formation à la médiation scientifique en astrophysique ✨ Plus d'infos ici : vulgarisation.sciencesconf.org 📍 Observatoire de Paris | PSL, Ville de Meudon 📅 5–10 octobre 2026 👥 30 places 🎓 Formation gratuite

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Guillaume Bertrand @guillaumebertrand.bsky.social · 21/09/2026

Today’s Sun through the tiny SUNSCAN ! ☀️ Captured in H-alpha (656.3 nm) and Helium D3 (587.6 nm). #Astrophotography #Astronomy #SUNSCAN

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Cédric Champeau @melix.champeau.me · 20/09/2026

C'est dimanche, on en profite pour sortir une nouvelle version de JSol'Ex (la 5.5.0) avec une nouveauté qui devrait simplifier la vie de beaucoup d'utilisateurs : le repérage automatique des raies dans SharpCap ! Démo ici : youtu.be/CzEuDSOjnnY Téléchargement : melix.github.io/astro4j/late...

youtu.be

Se repérer dans le spectre solaire avec JSol'Ex 5.5

YouTube video by Cédric Champeau

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TeX Users Group Official Account @texusersgroup.bsky.social · 20/09/2026

From #CTAN: Christian Tellechea submitted an update to the chemfig package. Version: 1.82 2026-09-19 License: lppl1.3c Summary description: Draw molecules with easy syntax ctan.org/pkg/chemfig #TeXLaTeX 🧪

LaTeX code and rendering for caffeine molecule

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Lt Nono @ltno2.bsky.social · 20/09/2026

Stacking amateur #astrophotography subs to get a better SNR also leads to photometry like here on the star HD189733 right next to M27, and witness an exoplanet transit that happened somewhere around 1962 😊 (09/19) Poke @pahcas.bsky.social 😇 who suggested this idea 😋 AIJ and HOPS curves attached!

This image is a stacked image of 195 60s subs shot with an H-alpha filter. It shows the star HD189733 being the object of the post (a star that has a transiting exoplanet)

Astro Image J light curve of the star HD189733 shot over the night from Sept 19/26 to Sept 20/26, showing a clear dip due to an exoplanet around that star

HOPS (software specifically created for the ExoClock project) light curve of the star HD189733 shot over the night from Sept 19/26 to Sept 20/26, showing a clear dip due to an exoplanet around that star.

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Lt Nono @ltno2.bsky.social · 19/09/2026

36h team effort on #NGC7217 and a HII region not usually photographed (but it is in the Finkbeiner Survey of H-alpha galactic emissions though - much more coarse though). #astrophotography is full of surprises 😇 What do you see @kat-astro-bot.bsky.social ? www.astrobin.com/l4vyua/

astrobin.com

A new look at NGC7217 and its surrounding HII neighbor - AstroBin

NGC 7217 imaged with Sky-Watcher Quattro 200P, TS-Optics 250mm/10" ONTC f/4 Newtonian (carbon tube), 36h 12m of total integration, by AFL, FranckIM06, Vlaams59 on AstroBin.

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Cédric Champeau @melix.champeau.me · 17/09/2026

Le diagramme que vous voyez ci-dessous est, si je ne me trompe pas, une première mondiale : la mesure par un astronome amateur des oscillations périodiques du soleil (toutes les 5 min environ). Je vous explique tout ça dans ce billet : melix.github.io/blog/2026/09... #astronomie #science

Un diagramme taille-fréquence des oscillations solaires, montrant un pic à ~3mHz, soit environ 5 minutes.

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Lt Nono @ltno2.bsky.social · 17/09/2026

I thought I'd never be able to capture this faint #astrophotography target but then I discovered the wonderful world of Newtonian scopes 🙂. This is the Bat (SH2-129) and Squid #nebula (OU-4) after 20h of integration time, shot from my backyard. What do you see @kat-astro-bot.bsky.social ?

The Bat nebula (SH2-129) showing red colors from the H-alpha emission line, and the planetary nebula called the Squid nebula (OU-4), recently discovered, emitting in the OIII line. This is the result of 20h of integration time. Details of the capture are on Astrobin : https://www.astrobin.com/vc8zxk/

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Martial Relier @martialrelier.bsky.social · 06/09/2026

à mon tour de faire une photo de NGC 7331, dans la constellation de Pégase. L'étoile marquée par les traits rouge est une supernova : SN 2026aaiv, découverte le 1er septembre. 🔭 #astrophotography

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Julien Hédoux @jhedoux.bsky.social · 10/09/2026

The new supernova SN2026aaiv in NGC 7331 ! #astronomy

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JDS @jdsoubeyran.bsky.social · 07/09/2026

Here is my processed image of NGC 7331, a stunning spiral #galaxy located in the constellation Pegasus, about 23.6 million light-years away. This image reveals a Type Ia supernova (SN 2026aaiv), visible as a new point of light near the galaxy’s disk. 🔭🧪 www.rochesterastronomy.org/sn2026/sn202...

Détail de la Galaxie NGC 7131 avec mise en évidence de la Supernova.

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David ALBERTO @astrolabe-science.fr · 24/08/2026

Le n21 (Automne 2026) de notre magazine vient de paraître et peut être téléchargé librement via www.cadrans-solaires.info/le-magazine/. Des articles à parcourir, des actualités, des jeux & énigmes à résoudre. À déguster sans modération par les spécialistes, les amateurs ou les simples curieux ! 🔭

Photo de couverture : sur fond orange clair, un cadran solaire orange et rouge avec lignes noires . Egalement le sommaire :
Contents
Éditorial
Actualités
Le Papophoplon – Christophe Marion
Cadran solaire de Leidsche Rijn – Hendrik Hollander
Éclairement d’un cadran solaire – Henri Gagnaire
Le cadran solaire de la chapelle du Pénity – Jean-Paul Cornec
Calcul de la durée du jour – Pierre-Louis Cambefort
Le cadran solaire de « l’ancienne villa chinoise » - Maria Luisa Tuscano
Réglage d’une horloge astrolabe Hour Lavigne – Jean Pakhomoff
Trouver la latitude et la longitude avec un théodolite – Yves Opizzo
Là où les lignes des prières Isha et Fajr se croisent – Ferdinando Roveda
Gnomonique pour tous - Roger Torrenti
Voyage en cartes postales - Alix Loiseleur des Longchamps
Pourquoi le Soleil brille ? - Patrice Poyet
Faire parler des pierres… Du destin d’un cadran solaire - Roland Müller
La trigonométrie sphérique (3) - Yvon Massé
L’analemme universel de Ferguson, une maquette astronomique - David Alberto
Jeux et énigmes
Solutions des jeux et énigmes
Moulin Rouge - Claude Gahon
Crédits photos et illustrations

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Dominique Boutigny @alvindediaspar.bsky.social · 24/08/2026

In one of my picture of the eclipse, taken a little bit before sunset I have a spot on the Moon. It is probably an artefact but there is a slight chance that it is the flash of a meteorite smashing the moon. May I ask you to check your pictures for a similar spot around 18:50 UTC ? 🧪 🔭

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imanerod.bsky.social @imanerod.bsky.social · 23/08/2026

Il existe des images qui vous coupent le souffle 🐋🤍 de la douceur, de la puissance et de la beauté réunies dans un seul instant. 📹 David Curries

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Bernd Flachsbart @bflachsbart.bsky.social · 20/08/2026

MWP 1 - The Methuselah Nebula captured from my patio on eleven short summer nights in July and August 😊🔭 This was shot on the EdgeHD 8 for a total integration time of about 40 hours in mono with Ha and OIII narrowband filters and combined with RGB stars. #Astrophotography

The Methuselah Nebula is an exceptionally large ancient bipolar planetary nebula and therefore it’s very faint. Despite the long integration time the signal was very weak and noisy so processing this object was quite challenging!

MWP1 is located in the constellation of Cygnus at an estimated distance of about 4,500 light years away from Earth.

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Lt Nono @ltno2.bsky.social · 23/08/2026

The more subs (22h in this case), the better the SNR, and more bubbly stuff pops out like the Soap Bubble nebula near the Crescent Nebula. This is a collaborative #astrophotography work with my friend Alex who's not on BS. What do you see @kat-astro-bot.bsky.social ?

The Crescent and Soap Bubble nebulae shot with two different imaging rigs whose subs were combined. There's a total of 22h of integration time. Technical details on Astrobin: https://www.astrobin.com/ybosex/

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Simon Kuestenmacher @simongerman600.bsky.social · 08/08/2026

I love this forest cover map of the world. Have a look for the big mountain ranges and deserts. Source: buff.ly/2DFrovZ

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David ALBERTO @astrolabe-science.fr · 07/08/2026

🔭 🧪 #EduSky This double skymap poster will soon decorate my appartment. Stereographic projection, with constellation lines, constellation boundaries, names of brightest stars, Sun's path, and brightest Messier objects. Powered by #Python. 1/4

Poster with 2 circular sky maps side by side, one for each hemisphere. Title in french 'La Sphère Céleste'. Poster: yellow-orange background. Maps: dark blue background, with an orange wavy line for the Sun's path, constellation lines, some stars labeled.

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NSF–DOE Rubin Observatory @rubinobservatory.org · 07/08/2026

Trading summer break for big-data astronomy! 🍎✨ 16 educators joined us in Tucson for our 3rd annual Summer Stars workshop, exploring NSF–DOE Rubin Observatory classroom tools, touring Kitt Peak, & learning how to bring real Rubin data to the next generation! 🌌🔭🧪 📷: NOIRLab/NSF/AURA

Group of visitors posing in front of the colorful mosaic wall at Kitt Peak National Observatory Visitor Center.

Group of people listening to a guide inside the dome of Kitt Peak's 3.5-meter WIYN telescope.

Group of people posing in front of the large donut-shaped cement mirror blank for Kitt Peak's 4-meter telescope, which is painted with a black and blue mural, with trees and cloudy sky behind them.

Group of adults at a collaborative workshop around a table with laptops, notebooks, and water bottles in a bright room.

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Lt Nono @ltno2.bsky.social · 07/08/2026

I'm dazzled by the photon collecting power of an f/4 Newtonian scope with a 200mm mirror...this is just one night of #astrophotography 🔭📷 subs for the Dark Shark nebula (about 5 1/2 hours of LRGB data shot this past night from my backyard) 🦈. What do you see @kat-astro-bot.bsky.social ?

Dark Shark Nebula shot in LRGB with a monochrome Poseidon camera and a 200mm Newtonian scope at f/4. This Nebula is a reflection nebula, made of dust, that reflects the light from the surrounding stars.

Meme taken from the movie Jaws where instead of saying "we're gonna need a bigger boat", the main character says "we're gonna need a bigger scope"

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Lt Nono @ltno2.bsky.social · 06/08/2026

Quick #astrophotography trial on the galaxy NGC1961. It still needs more subs in luminance - just 3.5 hrs so far, but the satellite trails (a bit enhanced so they pop out) seem to say it's already too much 😢. It's crowded up there, stop sending #satellites 🥵 Where is this @quantumkat.bsky.social ?

The galaxy NGC1961 shot at 762mm of focal length with amateur gear. 3.5 hours of luminance data and 1.5 hrs of RGB.

The galaxy NGC1961 shot at 762mm of focal length with amateur gear. 3.5 hours of luminance data boosted so the many satellite trails pop out.

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Dr. Miguel Montargès 🔭✨📡 @astromiguelm.bsky.social · 28/07/2026

Nous avons observé Bételgeuse B avec le Very Large Telescope Européen ! Et cette fois, c'est une détection à 6 sigma !

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ESO @eso.org · 28/07/2026

The conclusion of a century-long quest 😲 Our VLT obtained firm evidence that Betelgeuse, a red supergiant star in the Orion constellation and one of the most famous stars in the night sky, is not alone! 🔭 🧪 1/4

A collage of various astronomical images. The background image shows a wide view of a starry night sky, with blue lines connecting the stars of the Orion constellation. An inset image zooms into the star Betelgeuse, showing its orange surface. A second inset shows a bright companion next to the star. Image by ESO/M. Montargès et al. Background: N. Rissinger (skysurvey.org).

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Lt Nono @ltno2.bsky.social · 26/07/2026

Thousands of stars are playing hide and seek in this 🔭📷 #astrophography of the dusty surroundings of LDN1082 🤩. 12 hours of integration shot from my backyard, supervized from my couch (feeling kind of fancy with a remote setup of my own ☺️). Can you plate-solve this @kat-astro-bot.bsky.social ?

Astrophotography of LDN1082, a dark nebula made up of dust. Thousands of stars of various colors play hide and seek with the dust that thins off as it gets away from LDN1082. 12h of integration time over three nights using amateur equipment was necessary to bring the fainter wisps using : a Skywatcher Quattro 200P Newtonian, a Player One Poseidon-M camera, Antlia V-Pro LRGB filters.

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Lt Nono @ltno2.bsky.social · 23/07/2026

Averaging individual frames and using a rejection algorithm can get rid of those pesky satellite trails to get a nice #astrophotography pic... Here's NGC2655 without pollution, shot over several nights from my backyard. What do you see @kat-astro-bot.bsky.social ?

Astrophotography of thee active galaxy NGC2655 shot from a backyard in France, with a 200mm f/4 Newtonian and a Poseidon-M monochrome astronomy camera using LRGB filters. 12h40 of integration time in total.

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Cédric Champeau @melix.champeau.me · 22/07/2026

The Flying Bat Nebula and the Giant Squid SH2-129 is a bright emission nebula in HII ~1300 ly away in Cepheus. The 2d one ("the squid") is a beautiful planetary nebula which is ~1000 ly behind SH2-129. Click on the link for the full resolution! app.astrobin.com/i/9feu0r?r=B #astrophotography

In the center, the blue "calamar" aka OU4, is surrounded by the "flying bat" red emission nebula (sh2-129).

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Lt Nono @ltno2.bsky.social · 22/07/2026

Here is roughly 8h of luminance data (over three nights this past week) with this #astrophotography of NGC2655 done without any rejection algorithm. There's a slight satellite trail pollution don't you think? This is sad, knowing that some companies are willing to make things even worse 😢.

Satellite trails shown over 8 hours of luminance exposures spread over three nights while trying to capture the galaxy NGC2655.

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Thomas Fuchs 🫯 @thomasfuchs.at · 17/07/2026

A thing about the "AI" debate in science is that I almost never see anyone asking, "well sure LLMs or whatever can be useful sometimes—but what if we put all the money spent on 'AI' into hiring more humans, furthering other technologies & invest into research helping scientists science better"

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Julien Hédoux @jhedoux.bsky.social · 15/07/2026

✨ Target : NGC 7000 (re-edit 2026) Details 👉 app.astrobin.com/u/julienhedo... Astrometry : @kat-astro-bot.bsky.social Tags : #Astronomy #Astrophotography

app.astrobin.com

NGC7000 - The Cygnus Wall - AstroBin

An image on AstroBin.

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Panagiotis Xipteras @xipteras.com · 15/07/2026

Behold the ethereal Cygnus Loop – the delicate lacework of the Eastern and Western Veil Nebulae intertwined with Pickering’s Triangle – a breathtaking supernova remnant in the constellation Cygnus. #spacephoto

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JBGarrity Photography @joegarrity.bsky.social · 15/07/2026

It's summer, and the North American and Pelican Nebulae have returned to the night sky. Welcome back, old friends. ✨🤩 High-resolution: app.astrobin.com/i/lghjzo #astrophotography #astronomy #naturephotography #nature #longexposure #eastcoastkin #nebula #photography

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Bernd Flachsbart @bflachsbart.bsky.social · 13/07/2026

LoTr5 captured from my dark site in southern France on four nights in May 🇫🇷😊🔭 This was shot on the EdgeHD 8 with Hyperstar at f/2 for a total integration time of 14 hours using a QHY183C cam with the Baader UHCL filter. #Astrophotography @kat-astro-bot.bsky.social‬ what do you see?

LoTr 5 is a faint planetary nebula located in the constellation Coma Berenices. It’s about 1,650 light years away from Earth.

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Lt Nono @ltno2.bsky.social · 12/07/2026

I just tested out this web-based tool to animate #astrophotography images. Fun 🙂! Here's my latest WR-134 at warp speed. zedastro.lovable.app

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Lt Nono @ltno2.bsky.social · 11/07/2026

Did you know that sometimes, #astrophotography can rime with aperture #photometry? This is LDN1251, a dark nebula with a contact binary. I didn't check the O-C or fit a model, it's just to show that stuff could be done. 👋 @pahcas.bsky.social Where's this @kat-astro-bot.bsky.social ?

Astrophotography of the dark nebula LDN1251, the rotten fish nebula, shot with a Newtonian scope and a monochrome astrophotography camera using LRGB filters.

Astrophotography of the dark nebula LDN1251, the rotten fish nebula, shot with a Newtonian scope and a monochrome astrophotography. This monochrome image has an annotation that shows where is located the Contact Binary star is ZTF J222853.12+750003.6 whose light curve was measured.

Light curve of the Contact Binary star is ZTF J222853.12+750003.6 centered around JD 2461226. This light curve plots 95 images taken with the luminance filter in a single (sort summer) night.

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Lt Nono @ltno2.bsky.social · 11/07/2026

It's the Milky Way season, and right now there's a great #astrophotography target, a Wolf-Rayet Star in Cygnus (WR134) blowing away its outer shell.This a composition of narrow band and RGB images shot over several nights.The OIII signal is quite amazing! Where are we @kat-astro-bot.bsky.social ?

Astrophotography of the area around the Wolf-Rayet star W134, showing the outer oxygen-rich outer shell being blown away by stellar winds from the star. Image shot over several nights using a Newtonian scope and a monochrome astrophotography camera with narrow band and broad band filters.

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Lt Nono @ltno2.bsky.social · 05/07/2026

The Flying Dragon Nebula, to me, really looks like a flying dragon 🙂. I shot this one from my backyard using amateur equipment, remotely controlled from my couch...(feeling kind of fancy with my remote setup 😇). #Astrophotography Can you solve this one @kat-astro-bot.bsky.social?

Astrophotography of SH-114, the Flying Dragon Nebula shot using a monochrome cooled astrophotography camera and a Newtonian telescope with a diameter if 200mm. The total integration time is 9h. The image shows a large HII region that ressembles a dragon spreading its wings, flying though countless stars from the Milky Way plane.

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Lt Nono @ltno2.bsky.social · 04/07/2026

Thanks to @maitreeolas.bsky.social on his X account for reminding us all of these great moments of history. 250 years ago, the USA came into being. Happy Birthday USA! www.youtube.com/watch?v=JYqf...

youtube.com

Washington's Dream - SNL

YouTube video by Saturday Night Live

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Kat @quantumkat.bsky.social · 27/06/2026

A candle breathing. Schlieren photography reveals the invisible currents of hot air rising above the flame. #BlueSkyArtShow #Macro #Photography More details 👇

Schlieren photograph of a small candle flame against a dark background. The image is mostly black and white, except for the orange flame. Bright, twisting ribbons rise above it, revealing the changing density and turbulent movement of the heated air.

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Kat @quantumkat.bsky.social · 20/06/2026

Cosmic Curves 🔭 M27, the Dumbbell Nebula, 📷 Newton 130/900 and Sony A7S. M27 glows as its white-dwarf core ionizes the star’s expanding outer layers. @kat-astro-bot.bsky.social what do you see ? #BlueSkyArtShow #Curve #astrophotography #photography #M27 #DumbbellNebula

A wide-field astrophotograph of Messier 27, the Dumbbell Nebula, surrounded by a dense field of stars against a nearly black sky. The nebula is positioned near the center of the frame and appears as a softly glowing, irregular oval with two broad opposing lobes. Its brightest inner region is pale blue, cyan, and milky white, with translucent layers of gas overlapping around the faint central star. Curved reddish-pink arcs form parts of the outer shell, especially along the upper-left and lower-right edges, creating a rounded, expanding structure around the cooler blue interior. Fainter blue-green gas extends beyond the bright core as a diffuse halo. Hundreds of stars of different brightness fill the background, from tiny sharp points to several larger white stars with subtle four-point flares. Many stars show slight red and cyan fringes, adding small touches of color throughout the otherwise dark field. Captured with a Newton 130/900 telescope and a Sony A7S camera.

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