Map of the Universe

NGC 891

Galaxy · Galaxy in the constellation Andromeda

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NGC 891
Picture: Hewholooks, CC BY-SA 3.0, via Wikimedia Commons.

About NGC 891

NGC 891 is about 30.98 million light-years from the Sun, so the light we see from it left about 30.98 million years ago.

The light we see from it set out 0.031 billion years ago, when the universe was 13.8 billion years old (redshift 0.002145).

The map lists it as a galaxy and shows it at the scale of the Milky Way and the Local Group, drawn on the plane of the Milky Way.

An edge-on spiral often called the Milky Way's twin.

Key numbers

Distance30.98 million light-years (9.50 Mpc)
Redshift z0.002145
Light travel time0.031 billion years
Universe's age when this light left13.8 billion years
Distance methodredshift-independent (literature)
Supergalactic coordinatesSGL 343.0°, SGB -4.7°

Where it is

Its place in the universe, from the inside out: Virgo Supercluster › Laniakea Supercluster › Observable universe.

Zoom out to see it in context: Council of Giants, a view about 36 million light-years across.

From Wikipedia

NGC 891 is an edge-on unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda. Alternatively, it known as Caldwell 23, the Silver Sliver Galaxy, or the Outer Limits Galaxy. It was discovered by William Herschel on October 6, 1784.

Excerpt from the Wikipedia article NGC 891, licensed CC BY-SA 4.0.

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