A unprecedented exploding star has been noticed in a distant galaxy, and astrophotographers are racing to seize it earlier than it fades from view.
The supernova, known as SN 2026aaiv, was first seen by the ATLAS survey on Sept. 1 in NGC 7331 (also called Caldwell 30), a spiral galaxy about 45 million light-years away within the constellation Pegasus, seen within the Northern Hemisphere and at mid-latitudes within the Southern Hemisphere.
That makes this supernova a major goal for beginner astrophotographers and astronomers worldwide to seize a picture of this uncommon occasion.
Tons of of astrophotographers have already captured it, together with Andrew McCarthy, who posted his image on Instagram on Sept. 7 with the message, “As luck would have it, I happened to be in the middle of a massive project with this galaxy, and caught the supernova.” He shot four hours of data, two before and two after the supernova, as part of a 100-hour project. “The final image will be EPIC!” he said.
Tom Masterson, Mountain Operations Manager at the Mount Wilson Observatory, also captured it on Sept. 10 using a 60-inch telescope.
What you’ll need to find SN 2026aaiv
At magnitude 15.7 on Sept. 11, 2026, SN 2026aaiv is comparatively dim, however nonetheless brightening. Lots of the photos posted on-line have been captured with giant skilled telescopes or distant telescopes in darkish areas. Nevertheless, you’ll find and {photograph} SN 2026aaiv with comparatively modest gear. You will want a telescope or giant binoculars to see NGC 7331 (at magnitude 10) in any respect, however the supernova is dramatically more difficult visually. To have an opportunity of seeing SN 2026aaiv, a big telescope is really useful (observers have confirmed seeing it utilizing a 14-inch Schmidt-Cassegrain telescope). Use the averted imaginative and prescient method: look barely to the aspect of the galaxy’s core so the attention’s extra light-sensitive rod cells can reveal faint element.
The best approach is to make use of a good telescope, which might shortly discover and picture the host galaxy NGC 7331. In line with Seestar (Official ZWO Group) on Fb, customers of the Seestar S50 have managed to picture the SN 2026aaiv with about two hours of 10-second exposures (the default mode).
The right way to discover SN 2026aaiv
SN 2026aaiv has the coordinates RA 22h 37m 05.618s, Dec +34° 24′ 35.37″. From the Northern Hemisphere, turn toward the east after dark, and you’ll see four large, bright stars rising in a vast diamond shape. This is the Great Square of Pegasus, part of the constellation Pegasus. At the northwestern corner of the Great Square is Scheat. Just above it, outside the square, is a dimmer star called Matar. NGC 7331 is close by. In light-polluted skies, only the central core of the galaxy is visible, according to NASA. The galaxy, which we see partially edge-on, has spectacular spiral arms that swirl round a shiny central area.
What we find out about SN 2026aaiv
SN 2026aaiv is a Sort Ia supernova, a catastrophic explosion that happens when a white dwarf in a binary star system gains enough material from its companion to trigger a runaway thermonuclear reaction, destroying the white dwarf. Remarkably, another Type Ia supernova, SN 2025rbs, was present in the identical galaxy on July 14, 2025.
NGC 7331, imaged by the Hubble Area Telescope in 2018, was first present in 1784 by British astronomer William Herschel, who cataloged over 2,500 deep-sky objects and found Uranus and its two largest moons. NGC 7331 is analogous in measurement, form and mass to the Milky Means.