Gerard (moon crater)
| Gerard | ||
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| Gerard with side craters ( LROC -WAC) | ||
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| position | 44.5 ° N , 80.62 ° W | |
| diameter | 99 km | |
| Card sheet | 22 (PDF) | |
| Named after | Alexander Gerard (1792–1839) | |
| Named since | 1935 | |
| Unless otherwise stated, the information comes from the entry in the IAU / USGS database | ||
Gerard is an impact crater on the extreme northwestern edge of the lunar front , north of the Braun and Lavoisier craters , on the western edge of Oceanus Procellarum . The crater wall is very badly eroded and partially covered by secondary craters. To the northwest lie the two significantly larger, intermingled whale plains Gerard Q Inner and Gerard Q Outer .
On the western edge of Gerard Q Inner , the ridge system of the Rimae Gerard runs in a predominantly northerly direction through the Gerard Q Outer whale plain .
| Letter | position | diameter | link |
|---|---|---|---|
| A. | 45.06 ° N , 82.24 ° W | 18 km | [1] |
| B. | 46.34 ° N , 88.04 ° W | 14 km | [2] |
| C. | 45.87 ° N , 79.29 ° W | 28 km | [3] |
| D. | 46.09 ° N , 79.93 ° W | 6 km | [4] |
| E. | 44.5 ° N , 80.97 ° W | 6 km | [5] |
| F. | 43.76 ° N , 82.25 ° W | 5 km | [6] |
| G | 45.58 ° N , 88.1 ° W | 23 km | [7] |
| H | 44.49 ° N , 86.76 ° W | 13 km | [8th] |
| J | 46.8 ° N , 88.44 ° W | 9 km | [9] |
| K | 43.93 ° N , 77.26 ° W | 6 km | [10] |
| L. | 43.21 ° N , 76.43 ° W | 4 km | [11] |
| Q Inner | 46.52 ° N , 83.1 ° W | 67 km | [12] |
| Outer | 47.02 ° N , 84.38 ° W | 191 km | [13] |
The crater was officially named by the IAU in 1935 after the Scottish explorer Alexander Gerard .