Space and Astronomy Atlas

How The Universe Works
Celestial Objects

Triangulum Galaxy

Spiral Galaxy

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The Triangulum Galaxy is a spiral galaxy about 2.88 million light-years from Earth in the constellation Triangulum, probably first recorded by Giovanni Battista Hodierna before 1654 and independently discovered by Charles Messier in 1764.

Facts
Object Type
Spiral galaxy 1
Discovery Year
1764 1
The infobox's own observation history also credits Giovanni Battista Hodierna with probably observing the galaxy before 1654, an imprecise date; 1764 is Charles Messier's own precisely dated independent discovery, recorded here as the identifying year.
Sources
1. Wikipedia (space and spaceflight articles)
Wikimedia FoundationTriangulum Galaxy, lead section
Quote, Triangulum Galaxy, lead section
a spiral galaxy 2.878 million light-years (ly) from Earth
1. Wikipedia (space and spaceflight articles)
Wikimedia FoundationTriangulum Galaxy, infobox (Observation history)
Quote, Triangulum Galaxy, infobox (Observation history)
Probably discovered by Giovanni Battista Hodierna before 1654; independently discovered by Charles Messier on August 25-26, 1764
1. Wikipedia (space and spaceflight articles)
Wikimedia FoundationIn Category: Celestial Objects, Triangulum Galaxy, Wikipedia summary
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