Supernova SN 2020jfo in a weakly-barred spiral galaxy NGC 4303 (M61) toward the constellation Virgo

RC 12" Astrograph: 14-05-2020

23' x 17' FOV

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RC 12" ASA Astrograph: 29.04.2012

23' x 17' FOV

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© Velimir Popov & Emil Ivanov 2020

The supernova SN 2020jfo was discovered by The Zwicky Transient Facility (ZTF; Bellm et al. 2019; Graham et al. 2019) in a weakly-barred spiral galaxy NGC 4303 (M61) on 6-th of May 2020. ZTF reported a rapidly rising young supernova in the nearby galaxy M61. Assuming the redshift of the host (M61, z=0.005224 from NED), and the distance of ~19 Mpc the SN was discovered around absolute ZTF r-band magnitude of Mr = -15.8. The follow up rapid spectroscopy reveals a blue continuum that suggests a core-collapse supernova origin and was classified as a young Type II supernova. Total amount of eight supernovae was discovered in NGC 4303 since the first one in 1926 followed by SN in 1961, 1964, 1999, 2006, 2008, 2014 and 2020.

Charts and image details obtained from



Image and FOV details

Details for the image
Center of field RA 12:21:54.4 (h:m:s)
Center of field DE +04:28:49.8 (deg:m:s)
FOV 23 x 17 (arcmin)
Pixel scale: 1.04 (arcsec/pixel)

RC 12" Astrograph (IRIDA South dome) and RC 12" ASA Astrograph (IRIDA North dome)

Imaging details for NGC 4303 (M61)

Optic(s): RC 12" with Astro-Physics corrector @ f/5 (RC)
Mount: ASA DDM85 Premium
Camera: ATIK 4000 M
Filters: Astronomik II: Lumиnance
Dates/Times: 14.05.2020
Location: IRIDA Observatory, BG, longitude: E 24 44' 18", latitude: N 41 41' 42"
Exp. Details: L 4x10 min; R 4x10 min; G 4x10 min:B 4x10 min
  Bin 1, Total Exposure Time - 40 min
More details: Bias, dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013-2020. All Rights Reserved
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