Wednesday, June 25, 2025

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ASASSN-25cm Confirmed as New Classical Nova by Spectroscopy

Spectroscopic analysis identifies ASASSN-25cm as a classical nova.

From Hacker News Original Article Hacker News Discussion

A new classical nova, ASASSN-25cm (also called V462 Lupi), was spectroscopically confirmed after its discovery by the ASAS-SN survey in June 2025. The nova brightened significantly, reaching near naked-eye visibility in dark skies.

Why it matters: This nova provides a valuable opportunity to study classical nova eruptions in detail with modern instruments.

The big picture: Classical novae occur in binary systems and help astronomers understand stellar evolution and mass transfer processes.

Stunning stat: The nova brightened from 8.7 magnitude at discovery to 6.1 magnitude, becoming 11 times brighter.

Commenters say: Readers express envy about viewing the nova from southern latitudes and note the improved brightness now visible to the naked eye.