V572 Velorum

V572 Velorum
Approximate location of V572 Velorum (circled in red)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Vela
Right ascension 10h 25m 13.90s[1]
Declination −53° 31′ 18.9″[1]
Apparent magnitude (V) 4.8 – 22.2[2]
Characteristics
Variable type Nova + SU UMa dwarf nova[3]
Other designations
Nova Velorum 2025, PNV J10251200-5331109, V572 Vel[1]

V572 Velorum, also known as Nova Velorum 2025, is a bright nova in the constellation Vela discovered by John Seach, and independently by Andrew Pearce, on 25 June 2025.[1] At the time of its discovery, it had an apparent visual magnitude of 5.7, which is just visible to the naked eye.[1] It reached a peak brightness of 4.8 on June 27.[2]

All novae are binary stars, with matter from a "donor" star accreting onto a white dwarf. In the case of V572 Velorum, the orbital period is 2.956 hours.[5] Observations of the system before the 2025 explosion show the nova has already undergone fainter outbursts with both "long" (over 13 days) and "short" (3 to 4 days) periods. It is thus classified as a dwarf nova of the SU Ursae Majoris variable type.[3] A spectrum taken of 572 Velorum on 30 June 2025 looks typical of a Fe II-type classical nova.[6]

See also

References

  1. ^ a b c d e Seach, John; Pearce, Andrew (26 June 2025). "V572 VELORUM = NOVA VELORUM 2025 = PNV J10251200-5331109". Central Bureau Electronic Telegrams. 5574: 1.
  2. ^ a b "VSX: Detail for V0572 Vel". International Variable Star Index. AAVSO. Archived from the original on 30 June 2025. Retrieved 26 June 2025.
  3. ^ a b "ATel #17253: OGLE Pre-Eruption Observations of V572 Velorum Reveal Dwarf Nova Outbursts". The Astronomer's Telegram. Retrieved 2025-06-30.
  4. ^ "Download Data". aavso.org. AAVSO. Retrieved 26 June 2025.
  5. ^ Schaefer, Bradley E. (28 June 2025). "Bright nova V572 Vel Has Orbital Period of 0.12317997 +- 0.00000010 days". The Astronomer's Telegram. 17254: 1. Retrieved 28 June 2025.
  6. ^ Kaufman, R. (2 July 2025). "V572 VELORUM". Central Bureau Electronic Telegrams (5577). IAU. Retrieved 2 July 2025.


This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.