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Friday, October 16, 2026 · UTC
Missions & Exploration

Nova AT2026aabo in M31 brightens 0.68 magnitude in five days

Photometry on the MDM 1.3 m telescope shows the luminous nova brightened from 17.39 to 16.71 mag in the near-infrared Hs band between September 11 and 16.

Caleb Mbeki
Planetary Science Reporter
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Photometry on the 1.3 m telescope at MDM observatory logged the luminous nova AT2026aabo in M31 brightening in the Hs band from 17.39 mag on UT 2026-09-11 to 16.71 mag on UT 2026-09-16, a gain of 0.68 magnitude over five days. [2]