Supernova SN 2025pht   
and its progenitor
 in NGC 1637

This is the brightest supernova of 2025, so far.

The supernova was discovered by ASAS-SN on 29 June 2025.

More information and images here: https://rochesterastronomy.org/sn2025/sn2025pht.html

All supernovae updates here: https://rochesterastronomy.org/snimages/index.html

TNS [Transient Name Server] entry for 2025ph: https://www.wis-tns.org/object/2025pht

Wikipedia page for host galaxy NGC 1637: https://en.wikipedia.org/wiki/NGC_1637

The candidate progenitor of SN 2025pht can be found in the Hubble Picture of the week posted on 2 December 2024.

Note:  In this image, north is 21.9° right of vertical. It has been rotated 90° clockwise from the original image.

The presumed progenitor has been cataloged in the Hubble Source Catalog for NGC 1637 as

MatchID 1150202 with coordinates RA 04:41:28.838 DEC -02:51:56.01

Further reading:

None yet

Page created 29 June 2025