Bürg is a prominent

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impact crater in the northeast part of the Moon. It lies within the lava-flooded, ruined crater formation designated Lacus Mortis. To the south and southeast is the crater pair Plana and

Mason Mason may refer to: Occupations * Mason, brick mason, or bricklayer, a craftsman who lays bricks to construct brickwork, or who lays any combination of stones, bricks, cinder blocks, or similar pieces * Stone mason, a craftsman in the stone-cut ...

. To the west, beyond the rim of Lacus Mortis, is the prominent crater Eudoxus.

Name

Bürg is named for Austrian astronomer

Johann Tobias Bürg Johann Tobias Bürg (December 24, 1766 – November 15, 1835), sometimes known as Johannes Burg,Plotner, Tammy''The Night Sky Companion: A Yearly Guide to Sky-Watching 2009'', p. 319.Springer Science+Business Media (New York), 2009. was an A ...

, who discovered Antares's companion star during an occultation event in 1819.

Crater

The rim of Bürg is nearly circular with relatively little wear. The interior is bowl-shaped, and there is a large central mountain at the midpoint. Along the crest of this mountain some observers have noted a small, crater-like pit. The crater has a

ray system A ray system comprises radial streaks of fine '' ejecta'' thrown out during the formation of an impact crater, looking somewhat like many thin spokes coming from the hub of a wheel. The rays may extend for lengths up to several times the diameter ...

, and is consequently mapped as part of the Copernican System. To the west is a rille system designated the Rimae Bürg, which spans a distance of about 100 kilometers.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Bürg.

References

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External links

* {{DEFAULTSORT:Burg (crater) Impact craters on the Moon