Classical Nova Discovered: Spectroscopic Confirmation of ASASSN-25cm
2025-06-23
ASASSN-25cm (AT 2025nlr), discovered by ASAS-SN on June 12th, 2025, has been spectroscopically classified as a classical nova. Observations using the Mookodi spectrograph on the 1-meter Lesedi telescope at the South African Astronomical Observatory revealed prominent Balmer lines and He I or Fe II lines with P Cygni profiles, indicating a strong stellar wind. The large eruption amplitude further supports the classification. This nova lacked any counterpart in archival surveys.