thumb|right|240px|[[Lunar Orbiter 4 image of Humboldt (right) and the smaller Phillips (left)]]

thumb|right|240px|[[Lunar Reconnaissance Orbiter|LRO mosaic]]

Humboldt is a large lunar impact crater that is located near the eastern limb of the Moon. British astronomer T. W. Webb notes this is "one of several huge rings on the limb."

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 Humboldt. Humboldt N is the largest crater within Humboldt itself, located north of the central peak. Humboldt B is located to the south of Humboldt, on the west rim of the crater Barnard.

{| class="wikitable"

!width="25%" style="background:#eeeeee;" |Humboldt

!width="25%" style="background:#eeeeee;" |Latitude

!width="25%" style="background:#eeeeee;" |Longitude

!width="25%" style="background:#eeeeee;" |Diameter

|-

|align="center"|B

|align="center"|30.9° S

|align="center"|83.7° E

|align="center"|21 km

|-

|align="center"|N

|align="center"|26.0° S

|align="center"|80.5° E

|align="center"|14 km

|}

Catena Humboldt

Catena Humboldt is a crater chain that extends northeast from crater Humboldt, and it is approximately 162 km long. It was named by the IAU in 1976. It passes between the craters Gibbs and Schorr.

Apollo 12 Views

The Apollo 12 mission in 1969 obtained many photographs of Humboldt crater. In the photos below, the central peaks appear white because of the high-Sun elevation angle. The arcuate fractures within Humboldt are evidence of the forces working on the surface of the Moon to change the lunar topography.

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File:AS12-50-7448 (21514672680).jpg

File:AS12-50-7450 (21514778788).jpg

File:AS12-50-7452 (21514665870).jpg

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Apollo 15 Views

The Apollo 15 mission in 1971 obtained many more photographs of Humboldt crater.

<gallery heights="200px" mode="packed">

File:AS15-95-12981 (46763201394).jpg|Regional view

Image:Humboldt crater AS15-M-2513.jpg|Oblique view of Humboldt from Apollo 15 mapping camera

File:AS15-93-12641 (21925322005).jpg|Eastern crater floor. The mare-type material on the floor contains radial cracks and concentric rilles. A dark-halo area is visible at the lower left corner. Low hills of material that resemble the central peak protrude through the smooth crater floor. Bright-halo craters are also evident. The "doughnut" filling of the crater at the left margin is a rare feature.

</gallery>

References

</references>

Sources

  • Humboldt crater in 3D, using anaglyphs from Apollo cameras.