SN 1917A
id:
sn-1917a-202-12166381
title:
SN 1917A
text:
SN 1917A is a supernova event in the Fireworks Galaxy, positioned 37″ west and 105″ south of the galactic core. Discovered by American optician George Willis Ritchey on 19 July 1917, it reached a peak visual magnitude of 13.6. Based on a poor quality photographic spectrum taken at least a month after peak light by F. G. Pease and Ritchey, it was identified as a type II core-collapse supernova. A 2018 analysis of the surrounding stellar population by B. F. Williams suggests the progenitor star wa
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/SN_1917A
date created:
date modified:
2023-09-10T21:35:55Z
main entity:
{"identifier":"Q7391939","url":"https://www.wikidata.org/entity/Q7391939"}
image:
fields total:
13
integrity:
13