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1. 2 Sep 11

   Supernova reaches magnitude 15.7; amateur observation remains possible

   SN 2026aaiv reached magnitude 15.7 on September 11 and continues brightening. While the supernova is relatively dim and requires large telescopes for visual observation, hundreds of astrophotographers have already captured images using both professional equipment and remote telescopes, with smart telescopes also enabling amateur access.

   “To have a chance of seeing SN 2026aaiv, a large telescope is recommended (observers have confirmed seeing it using a 14-inch Schmidt-Cassegrain telescope).”

   • B

     NGC 7331 with SN 2026aaiv captured from my patio this week 😊🔭 This was shot on the EdgeHD 8 for a total integration time of about 4.5 hours in LRGB using a QHY294M cam. The supernova SN 2026aaiv was discovered on 1st Sept 2026 #Astrophotography @kat-astro-bot.bsky.social‬ what do you see?

     bflachsbart.bsky.socialBluesky10d ago75▲view on Bluesky ↗

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   • M

     Tonight‘s aim: another image of Supernova 2026aaiv, which is currently happening in NGC 7331. 🔭🧪

     mpoessel.deBluesky9d ago54▲view on Bluesky ↗
   • D

     Check out John Chumack’s image of the supernova in NGC 7331, designated SN 2026 aaiv, captured on September 7 when the new star was glowing at magnitude 13.5. The supernova is marked with a line showing its location. Enjoy!

     deepskydave.bsky.socialBluesky12d ago51▲view on Bluesky ↗

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2. backgroundSep 10

   Mount Wilson Observatory captures supernova with 60-inch telescope — Tom Masterson, Mountain Operations Manager at Mount Wilson Observatory, imaged SN 2026aaiv on September 10 using the facility's 60-inch telescope.

3. 2 days quiet
4. 1 Sep 8

   San Jose Astronomical Association confirms rapid brightening since discovery

   The SJAA reports that SN 2026aaiv has brightened rapidly since its September 1 discovery, noting the supernova's magnitude increase over the week.

   “SN 2026aaiv is a newly discovered Type Ia supernova in NGC 7331, about 40 million light-years away in Pegasus. It was discovered Sept. 1 and has brightened rapidly since.”

   • T

     Sn2026aaiv shines just to the right of the core of NGC 7331. As of 9/8/26 this Type 1a supernova is increasing in brightness. I estimate it was magnitude 14 this morning. NGC 7331 is 44 million light years away. The galaxies below it are almost 10x further away. Details in ALT. #astrophotography

     the-physics-well.netBluesky15d ago67▲view on Bluesky ↗

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   • S

     💥 An exploding star, captured by an SJAA member! SN 2026aaiv is a newly discovered Type Ia supernova in NGC 7331, about 40 million light-years away in Pegasus. It was discovered Sept. 1 and has brightened rapidly since. 🔭🧪

     sjastronomy.bsky.socialBluesky15d ago20▲view on Bluesky ↗

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5. backgroundSep 7

   Andrew McCarthy photographs supernova during 100-hour NGC 7331 project — Astrophotographer Andrew McCarthy captured the supernova on September 7 while in the middle of a 100-hour imaging project on NGC 7331, shooting four hours of data (two before and two after the supernova detection).

6. backgroundSep 7

   John Chumack captures supernova image at magnitude 13.5 — Astrophotographer John Chumack imaged SN 2026aaiv on September 7 when the supernova had brightened to magnitude 13.5, with the supernova marked in the image.

7. backgroundSep 1

   ATLAS survey discovers Type Ia supernova SN 2026aaiv in NGC 7331 — The supernova was first detected by the ATLAS survey in the spiral galaxy NGC 7331, located approximately 45 million light-years away in the constellation Pegasus.