SN 2019so

SN 2019so

SN 2019so occurred within the galaxy NGC 4622, also known as the backward galaxy due to its spiral arms facing the opposite direction to most spiral galaxies
Event type	Supernova
Date	2019
Constellation	Centaurus
Right ascension	12^h 42^m 36.420^s
Declination	−40° 44′ 46.79″
Galactic coordinates	NGC 4622
Distance	200 million ly
Redshift	0.015

SN 2019so was a low redshift supernova in the Backward Galaxy (NGC 4622) located 200 million light years from Earth in the constellation of Centaurus.^[1][2]

It was discovered in the year 2019.^[1]

Light curves for SN 2019so in four photometric bands, plotted from data published by Chen et al. (2022)^[3]

References

1. "2019so | Transient Name Server". www.wis-tns.org. Retrieved 2025-05-29.
2. Baltay, C.; Grossman, L.; Howard, R.; Rabinowitz, D.; Arcavi, I.; Barbour, N.; Burke, J.; Contreras, C.; Dilday, B.; Graham, M.; Hiramatsu, D.; Hossenzadeh, G.; Howell, D. A.; McCully, C.; McKinnon, R. (2021-04-01). "Low-redshift Type Ia Supernova from the LSQ/LCO Collaboration". Publications of the Astronomical Society of the Pacific. 133 (1022): 044002. Bibcode:2021PASP..133d4002B. doi:10.1088/1538-3873/abd417. ISSN 0004-6280.
3. Chen, Ping; Dong, Subo; Kochanek, C. S.; Stanek, K. Z.; Post, R. S.; Stritzinger, M. D.; Prieto, J. L.; Filippenko, Alexei V.; Kollmeier, Juna A.; Elias-Rosa, N.; Katz, Boaz; Tomasella, Lina; Bose, S.; Ashall, Chris; Benetti, S.; Bersier, D.; Brimacombe, Joseph; Brink, Thomas G.; Brown, P.; Buckley, David A. H.; Cappellaro, Enrico; Christie, Grant W.; Fraser, Morgan; Gromadzki, Mariusz; Holoien, Thomas W.-S.; Hu, Shaoming; Kankare, Erkki; Koff, Robert; Lundqvist, P.; Mattila, S.; Milne, P. A.; Morrell, Nidia; Muñoz, J. A.; Mutel, Robert; Natusch, Tim; Nicolas, Joel; Pastorello, A.; Prentice, Simon; Roth, Tyler; Shappee, B. J.; Stone, Geoffrey; Thompson, Todd A.; Villanueva, Steven; Zheng, WeiKang (April 2022). "The First Data Release of CNIa0.02-A Complete Nearby (Redshift <0.02) Sample of Type Ia Supernova Light Curves". The Astrophysical Journal Supplement Series. 259 (2): 53. arXiv:2011.02461. Bibcode:2022ApJS..259...53C. doi:10.3847/1538-4365/ac50b7.