Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Lupus |
Right ascension | 15h 08m 03.274s [1] |
Declination | −40° 08′ 29.58″ [1] |
Apparent magnitude (V) | 5.3 –18.5 [2] |
Characteristics | |
Variable type | Nova |
Other designations | |
AT 2025nlr, Nova Lupi 2025, ASASSN-25cm, V462 Lup [3] |
V462 Lupi, also known as Nova Lupi 2025, [3] is a bright nova in the constellation Lupus discovered by All Sky Automated Survey for SuperNovae (ASAS-SN) on 12 June 2025. [1] At the time of its discovery, it had an apparent visual magnitude of 8.7. [1] It was classified as a classical nova on 14 June 2025. [4]
By 18 June 2025, it had brightened to magnitude 5.7, making it just visible to the naked eye. [6] The peak brightness, magnitude 5.5, was reached on 20 June 2025, [7] and around 10 July 2025 it became too faint to see with the naked eye even under ideal conditions.
All novae are binary stars, with matter from a "donor" star accreting onto a white dwarf. In the case of V462 Lupi, the orbital period is 0.07488825±0.00000016 days (1.80 h). [8]