Accelerated rise of the slow extragalactic nova Vend51 (AT 2023oom)

Szerző:

The extragalactic slow nova AT 2023oom (Vend51) reached maximum at 17.312R (0.038) on Wednesday morning (2024. January 17.).

Update: Our latest photometry show it around 18.846CV (0.135) on Tuesday night (January 23/24). 


Light curve of AT 2023oom (Vend51) based on the photometry of unfiltered CCD images made by Tamás Tordai, CCD images with Luminance filter made by Róbert Fidrich, and CCD images with BVR filters made by Allen W. Shafter.

Megjegyzések

Megjegyzés küldése

Népszerű bejegyzések ezen a blogon

Vend78: a possible young nova in M31

Szerző:
Kép
I've just found a ~19.4 C mag possible nova on my 4×90s co-added images of M31 taken tonight (2025 Dec 11.7759 UT) with a Luminance filter using the 0.43 m Dall-Kirkham telescope at the Alnitak Remote Observatory, Sierra del Segura, Spain. Follow-up images obtained this morning (2025 Dec 12.2138 UT) with a 0.61 m f/6.5 CDK reflector at the Sierra Remote Observatory, Auberry, California, USA (iTelescope.net) show that it is still rising, at around 18.3 CV mag. It has been reported to the TOCP website as PNV J00421476+4117284 and to the TNS server as AT 2025agmm . Preliminary coordinates of Vend78 : 00 42 14.76 +41 17 28.4 (J2000.0) Vend78 at 2025. dec 12.2138UT on 3x120s co-added images made with a 0.61-m f/6.5 CDK reflector, Sierra Remote Observatory at Auberry California USA (iTelescope.net). The discovery was made using the Alnitak Remote Observatories robotic telescope network, ARTA program.
További információk

Vend74: bright nova candidate in M31

Szerző:
Kép
I've just discovered a bright (~16.411CV magnitudes) possible nova on my 8x120s co-added M31 photos taken at 2025. november 03.1914UT using the 0.61-m f/6.5 CDK reflector, Sierra Remote Observatory at Auberry California USA (iTelescope.net network).  The transiens was visible on all eight individual 120s images. The discovery of this transient has been reported as PNV J00424541+4115192 and AT 2025acfl respectively. Coordinates of Vend74 : 00 42 45.52   +41 15 18.8  (J20000.0). The astrometry was provided by Tamás Elek, Nyíregyháza-Oros, Hungary using the original discovery images).
További információk

Vend76: Independent discovery of the expected eruption of M31N 1963-09c

Szerző:
Kép
I have just found a possible nova in my 4×90s images of M31 taken on 2025 November 25.9109 UT. It appears to be the expected eruption of the recurrent nova M31N 1963-09c. Unfortunately, the XOSS team detected the eruption 9 hours earlier , so this counts only as an independent discovery. Nothing was visible on my 4x120s images of M31 taken on  2025 November 25.1366 UT with limit magnitudes of 19.3. The independent discovery was made with the Alnitak Remote Observatories robotic telescope network, ARTA program.
További információk