A major outburst of comet 29P/SchwassmannâWachmann 1
ATel #14943; Zhong-Yi Lin (IANCU), Wing-Huen Ip (IANCU)
on 29 Sep 2021; 10:08 UT
Distributed as an Instant Email Notice Comets
Credential Certification: Zhong-Yi Lin (zylin@astro.ncu.edu.tw)
We report that a major outburst of comet 29P/SchwassmannâWachmann 1 was detected by the R-band images obtained with the SLT at Lulin observatory (https://www.astro.ncu.edu.tw/people/zylin/29P_202109.html ). The outburst was observed to begin on 2021 September 25 with its brightness suddenly increasing by ~1.0 mag. as measure through a 6.3 arcsec aperture. The brightness keeps brightening from 14.87 mag (Sep. 25) to 12.44 mag (Sep. 28) and the coma with a star-like shape is getting bigger and bigger. The outburst event was larger than that report in August 2021 (Atel#14898). Photometry of the image was all measure with the same radius and calibrated to PS1 catalog.
