Map of the Universe

G1.9+0.3

Supernova remnant · Supernova remnant in the constellation of Sagittarius

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G1.9+0.3
Picture: NASA/CXC/NCSU/K.Borkowski et al., Public domain, via Wikimedia Commons.

About G1.9+0.3

G1.9+0.3 is about 27,723 light-years from the Sun, so the light we see from it left about 27,723 years ago.

It is 1,182 light-years from the centre of the Milky Way.

The map lists it as a supernova remnant and shows it among the stars around the Sun, drawn on the plane of the Milky Way.

The youngest known supernova remnant in the Galaxy; its light reached Earth around 1890–1908 but was hidden by dust.

Key numbers

Distance27,723 light-years (8.50 kpc)
Distance from the Galactic centre1,182 light-years
Galactic coordinatesl = 1.90°, b = +0.30°
Sizeabout 6 light-years across

Where it is

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

Zoom out to see it in context: Local Arm, a view about 12,000 light-years across.

From Wikipedia

G1.9+0.3 is a supernova remnant (SNR) in the constellation of Sagittarius. It is the youngest-known SNR in the Milky Way, resulting from an explosion the light from which would have reached Earth some time between 1890 and 1908.

Excerpt from the Wikipedia article G1.9+0.3, licensed CC BY-SA 4.0.

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