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W 31 or W31 may refer to. [1]

11 relations: H II region, LBV 1806-20, Luminous blue variable, Magnetar, Milky Way, Molecular cloud, SGR 1806-20, Soft gamma repeater, W31, Westerhout 31, 1806-20 cluster.

H II region

An H II region or HII region is a region of interstellar atomic hydrogen that is ionized.

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LBV 1806-20

LBV 1806-20 is a candidate luminous blue variable (LBV) and likely binary star located nearly 40,000 light-years from the Sun, towards the center of the Milky Way.

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Luminous blue variable

Luminous blue variables (LBVs) are massive evolved stars that show unpredictable and sometimes dramatic variations in both their spectra and brightness.

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Magnetar

A magnetar is a type of neutron star with an extremely powerful inferred magnetic field (\sim 10^ - 10^ G).

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Milky Way

The Milky Way is the galaxy that contains our Solar System.

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Molecular cloud

A molecular cloud, sometimes called a stellar nursery (if star formation is occurring within), is a type of interstellar cloud, the density and size of which permit the formation of molecules, most commonly molecular hydrogen (H2).

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SGR 1806-20

SGR 1806-20 is a magnetar, a type of neutron star with a very powerful magnetic field, that was discovered in 1979 and identified as a soft gamma repeater.

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Soft gamma repeater

A soft gamma repeater (SGR) is an astronomical object which emits large bursts of gamma-rays and X-rays at irregular intervals.

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W31

The W31 was an American nuclear warhead used for two US missiles and as an atomic demolition munition.

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Westerhout 31

Westerhout 31, also known as W31, is a complex of star formation regions of the Milky Way located in the constellation of Sagittarius.

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1806-20 cluster

1806-20 (originally named the SGR 1806-20 cluster) is a heavily obscured star cluster on the far side of the Milky Way, approximately 50,000 light years distant.

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Redirects here:

W 31 (disambiguation).

References

[1] https://en.wikipedia.org/wiki/W_31

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