File:AS10-30-4353 - Apollo 10 - Apollo 10 Mission image - Crater 211 - NARA - 16679936.jpg

• Scope and content: King crater.

The original database describes this as:

Description: Oblique view of Crater 211 - Target of Opportunity #46 taken during Apollo 10 Mission. Longitude was 119.5 degrees east and Latitude 4.5 degrees north. Large rough rimed crater with massive central peak. Sun angle was medium. Film magazine was Q,film type was 3400 with 250mm lens. Film type was 70mm black and white.

Subject Terms: Apollo 10 Flight, Moon, Craters

Categories: Lunar Observations

Original: Film - 70MM B&W

Interior_Exterior: Exterior

Ground_Orbit: On-orbit

This photo was used in Figure 2-28 of Analysis of Apollo 10 Photography and Visual Observations (NASA SP-232, 1971), which has the following caption:

Apollo 10 photograph AS10-30-4353.

It was also used in Figure 2-29, which has the following caption:

Apollo 10 photograph AS10-30-4353 showing central peaks and adjoining flows.

The text of the report refers to these figures as follows:

On the southeastern portion of the floor is a succession of three or four flows that have different morphologies and well-defined fronts (figs. 2-28 and 2-29). These flows apparently originated from discrete portions of the lower slopes of the central peak. Flow 1 is approximately 4 km long, has a relatively smooth and slightly hummocky surface, and is clearly associated with a pair of connected craters on the lower slopes of the central peak. Flow 1 partly overlies flow 2 and, therefore, is younger. Flow 2, which is complex, has a rough surface that contains numerous arcuate and linear ridges and a high, well-defined front. This flow is approximately 12 km long and originates on the southern portion of the central peak in the vicinity of a bright-halo crater (A) that is 2 km in diameter. The head of the flow is partly obscured by bright-halo material (ejecta) from the crater. The possibility exists that this crater overlies the source of the flow and is related to the flow. Flow 2a may be a secondary flow unit that broke through the terminus of a late surge of the main flow. The rough surface texture, high flow front, and pronounced flow ridging indicate this flow was considerably more viscous than the others in the vicinity. Flow 3 is about 10 km long and has a smooth surface with a fairly low flow front that indicates a relatively low viscosity. This flow originates from an ill-defined portion of the central peak and overlies flows 2 and 2a. The different ages and surface morphologies of the flows, the lengths, the fact that one flow (flow 1) is clearly associated with a pair of craters, and the similarity between the surface morphology and the remainder of the floor strongly indicate that the flows are composed of lava.

Other parts of the central peaks display flows of a different type. Therefore, the feature P (fig. 2-29) appears to be a thin layer of darker material that has originated from the summit of the peak. The thinness suggests that either the material was deposited as a fluid melt or that it is the result of downslope movement of dark debris.