#SN2024ggi
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landru79.bsky.social
James #Webb Space Telescope #JWST

Watching Dust Formation in Real Time in Two Very Nearby Core Collapse Supernovae

TARG: #SN2024ggi
2026-02-01
PI: Andrews, Jennifer

MIRI 2550 2100 1800 1500 1280 1130 770 560

yuval-harpaz.github.io/astro/jwst_l...

NASA/ESA/CSA/STScI/j. Roger
February 2, 2026 at 4:18 PM
landru79.bsky.social
James #Webb Space Telescope #JWST

Watching Dust Formation in Real Time in Two Very Nearby Core Collapse #Supernovae

TARG: #SN2024ggi
2026-02-01
PI: Andrews, Jennifer

MIRI (2550 2100 1800) 1500 1280 R 1130G 770 560 B

yuval-harpaz.github.io/astro/jwst_l...

NASA/ESA/CSA/STScI/j. Roger
February 2, 2026 at 4:17 PM
alcornews.bsky.social
La supernova SN 2024ggi explose… en forme d’olive ! Pour la première fois, on a capturé sa vraie géométrie au moment exact du breakout — bouleversant les idées reçues. www.science-et-vie.com/ciel-et-espa... #Space #Astrophysics #SN2024ggi #Supernova2025
Moment réellement historique : une supernova photographiée révèle le chaos d’une explosion stellaire
Des astronomes ont capté pour la première fois la forme initiale d’une supernova, révélant une explosion asymétrique et directionnelle.
www.science-et-vie.com
December 7, 2025 at 7:50 AM
media.inaf.it
A circa 22 milioni di anni luce di distanza da noi è esplosa #SN2024ggi. Il #VLT dell’ESO è riuscito a catturare la fase iniziale della supernova: un’osservazione talmente precoce – appena 26 ore dopo il primo rilevamento – da consentire di osservarne la forma: più simile a un’oliva che a una sfera.
Così è la forma d’una supernova che nasce
Rapide osservazioni con il Vlt hanno rivelato la morte esplosiva di una stella mentre l’esplosione stava sfondando la superficie stellare, mostrando per la prima volta la forma dell'esplosione nella s...
www.media.inaf.it
November 13, 2025 at 9:09 AM
astroarxiv.bsky.social
An optical to infrared study of type II SN2024ggi at nebular times. Luc Dessart et. al. https://arxiv.org/abs/2507.05803
Figure 1 Figure 2 Figure 3 Figure 4
November 12, 2025 at 3:27 AM
astrophsr-bot.bsky.social
Luc Dessart, Rubina Kotak, Wynn Jacobson-Galan, Kaustav Das, Christoffer Fremling, Mansi Kasliwal, Yu-Jing Qin, Sam Rose: An optical to infrared study of type II SN2024ggi at nebular times https://arxiv.org/abs/2507.05803 https://arxiv.org/pdf/2507.05803 https://arxiv.org/html/2507.05803
July 9, 2025 at 6:42 AM
astroarxiv.bsky.social
An optical to infrared study of type II SN2024ggi at nebular times. Luc Dessart et. al. https://arxiv.org/abs/2507.05803
Figure 1 Figure 2 Figure 3 Figure 4
July 9, 2025 at 5:15 AM
krxiv-astro-ph.bsky.social
An optical to infrared study of type II SN2024ggi at nebular times
https://arxiv.org/pdf/2507.05803
Luc Dessart, Rubina Kotak, Wynn Jacobson-Galan, Kaustav Das, Christoffer Fremling, Mansi Kasliwal, Yu-Jing Qin, Sam Rose.
https://arxiv.org/abs/2507.05803
arXiv abstract link
arxiv.org
July 9, 2025 at 4:33 AM
starcourier.bsky.social
[2507.05803] Luc Dessart et al.: An optical to infrared study of type II SN2024ggi at nebular times. link
July 9, 2025 at 4:21 AM
rami.spaceaustralia.com
Zoom in inset of the central regions of the first three nebulae, showing the massive hot stars that create all that ionizing radiation that causes the hydrogen to emit that reddish colour, whilst carving out cavities in the cloud, and supernova #SN2024ggi from last night too.

#astrophotography 🔭
Four tile image. Three tiles show the central structures of known nebulae and one photo shows a faint galaxy with a star that is annotated with a white arrow.
July 23, 2024 at 10:09 PM
rami.spaceaustralia.com
It’s been almost two months since I’ve done any #astrophotography (travel, conferences, etc.) so thought I’d check in on NGC 3621 and see how the supernova #SN2024ggi and it is considerably more yellow from when we first imaged it back in April.

Spectral and temporal evolution. 😍

📸🔭🧪
Two tile image. Tiles are vertical. The left is a wide angle shot of a dense star field that has a galaxy in the centre. The right is a zoom in on the galaxy and has a white arrow annotated to one of the stars which is the supernova.
July 23, 2024 at 9:54 AM
rami.spaceaustralia.com
And lastly, my backyard tracking of supernova #SN2024ggi in NGC 3621 continues … now got seven obs to visually compare temporal and colour evolution.

Off to the north tonight, so won’t see our southern skies for a month! 😥

#astrophotography 📸🔭
Seven tile image showing the same galaxy photographed in each tile. One of the stars in that galaxy is annotated with arrows or cross hairs.
June 12, 2024 at 9:55 PM
rami.spaceaustralia.com
Got another 1.5 hours of light from nearby(ish) galaxy NGC 3621 which features the recent supernova #SN2024ggi

Have now been grabbing light from this event over a few months and can see its colour/flux temporal evolution.

Caught it with VIVID’s extreme light pollution too!

#Astrophotography 🔭📸
Image of a faint galaxy at the centre of a star field. There is an arrow annotated to one of the bright stars in the galaxy which is the supernova. Five vertical narrow tiles, each showing a zoomed in section of an astrophotograph of a spiral galaxy’s edge. There is an arrow annotated to one of the bright stars in the galaxy which is the supernova on each of these images.
May 29, 2024 at 10:18 PM
rami.spaceaustralia.com
Tried to image #SN2024ggi in NGC 3621 tonight and I was competing with aircraft, extra extra light pollution from the festival of light, neighbours turning their lights on … shambles!

But the stars still shined through ….

🔭📸
In the foreground is a blurry, bulky black object which is the telescope. This is a long exposure so the movement of the telescope makes it look dynamic. In the background at arcing star trails. Several straight and one curved bright arcs intersect the image, causing by the lights of passing aircraft overhead.
May 29, 2024 at 10:37 AM
rami.spaceaustralia.com
Continuing on with imaging #SN2024ggi in NGC 3621 every Sunday from my backyard, and it is still very bright. Was able to get about an hour of data before the Moon came up and clouds rolled in.

This is about three weeks after the supernova was first detected. Star death in slow-mo is nice.

🔭🧪⭐️💥
Two tile image. Left shows wide field view of a fuzzy, soft galaxy in the centre surrounded by a field of stars. Right is a zoom in on the galaxy and shows an arrow annotating a single star which is the supernova.
April 28, 2024 at 10:41 PM
rami.spaceaustralia.com
Well, the moonlight did make for less detail (NGC 3621 is not as clear, and stellar field is much less prominent) from last week’s image, but #SN2024ggi still roaring brightly last night.

🔭📸⭐️💥
Two tile image. Left shows wide field view of a fuzzy, soft galaxy in the centre surrounded by a field of stars. Right is a zoom in on the galaxy and shows an arrow annotating a single star which is the supernova.
April 21, 2024 at 8:32 PM
rami.spaceaustralia.com
Currently imaging #SN2024ggi with Seestar S50, a week or so after my last image of the supernova in NGC 3621.

Let’s see how this will turn out relative to last week’s image, given we got a bright moon in the sky.

#Astrophotography

🔭📸⭐️💥
A small black telescope, sitting on a tripod. The set up is positioned on a sandstone pier with an iPad nearby. Surrounding and behind the peer are shrubs, plants and a fence. A bright moon hangs in the sky.
April 21, 2024 at 1:59 PM
rami.spaceaustralia.com
Here’s a second night of imaging #SN2024ggi using Seestar S50 from my backyard.

Got about 2 hours of data but then NGC 3621 crossed the meridian and things started failing.

Still, pretty darn good for a 5cm aperture. Saturated the colours a bit to highlight blue-white hues of supernova!

⭐️💥🔭📸
Two tile image features two vertical tiles. The first on the left is a wide angle shot of a spiral galaxy. It is small and resides within a dense star field. On the right is the zoomed in version, looking closer at Galaxy. An annotated arrow points to a white star which is the supernova.
April 14, 2024 at 1:14 PM
rami.spaceaustralia.com
Another awesome capture of #SN2024ggi, this time by @dylanodonnell.bsky.social and shared over on his insta account.

Gorgeous host galaxy dust lanes and spiral structure also visible in this one.

🔭📸
Astro image of a spiral and many stars surrounding it. One star has an arrow pointed to it and is annotated with the supernova name.
April 14, 2024 at 10:28 AM
rami.spaceaustralia.com
This is very noisy as it’s only 10 seconds of data, but even at such a short, single sub-integration, #SN2024ggi is roaring.

This thing is very bright, and probably gonna get a bit more brighter over days/weeks.

Note the idiot satellites which reflect light at dusk back down to Earth.
Grainy astro image of a galaxy’s core region with several bright stars surrounding it. One star is annotated with an arrow representing the supernova.
April 14, 2024 at 8:52 AM
rami.spaceaustralia.com
Andy Casely’s image of #SN2024ggi is here! Look at how blue the SN is!

Additionally, Andy used the SA100 grating filter (which has a resolution of R=100) to get some spectra (calibrated spectrum on bottom).

How cool is it that people can do this from their backyards?

#astrophotography 🔭📸
Astrophotograph of a spiral galaxy, with the bright core dominant and surrounded by a dense star field. One of the stars is annotated with cross hairs, indicating location of supernova. Two tile image showing two spectrums of a supernova.
April 13, 2024 at 9:16 PM