Episode 3 of 3

Publication and Verification

When
1885-08-31
Where
Andromeda Galaxy
Part of
Discovery of S Andromedae, first extragalactic supernova observed

Hartwig's telegram of August 31, 1885 prompted widespread observations and the publication of earlier reports by Gully and Ward, confirming the event's significance.

The telegram from Hartwig, sent on August 31, 1885, prompted widespread observations and the publication of earlier reports by Isaac Ward and Ludovic Gully. The first reports appeared before Hartwig's discovery letter, which was initially lost by Astronomische Nachrichten and reprinted later. The publications themselves carry no stated dates in the sources; the episode is dated to the telegram that triggered them.

Sources

  1. SN 1885A Wikipedia, revision of 2026-07-14

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.