Hi,
I made a positive observation of SN 2025gjc (J. Tonry et al., TNSDR No. 2025-1224), detected by ATLAS 2025-04-01 04:38:17.664.
The SN seems to be part of the Galaxy ESO 515-3. The not calibrated picture is a single shoot of 300s with a L filter (420-680nm), QHY268M camera on CDK17-NKT500 mont, at W96 AITP Observatory in San Pedro-Chili. More precise measurement will fellow.
Roger Hellot – AITP Observatory - roger.hellot.astro@gmail.com
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Congratulations. This also looks really beautiful!
The association with ESO 515-3 seems very plausible to me. The redshift of the supernova has been measured to z = 0.0198 (cf. TNS), and the galaxy is at a redshift of z = 0.0194 (e.g. Simbad).
Many thanks, Fabian.
It is again a nice environment.
I will try to fellow this SN if the magnitude increases. SN IIn types develop sometimes an interesting “plateau”.
Roger
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