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| Feature Name | Ilgenfritz |
|---|---|
| Clean Name | Ilgenfritz |
| Feature ID | 16516 |
| Target | Mars |
| Feature Type | Crater, craters |
| Coordinate System | Planetocentric, +East, 0 - 360 |
|---|---|
| Northmost Latitude | -44.07 ° |
| Southmost Latitude | -44.93 ° |
| Eastmost Longitude | 138.10 ° |
| Westmost Longitude | 136.80 ° |
| Diameter | 55.00 km |
| Center Latitude | -44.50 ° |
| Center Longitude | 137.45 ° |
| WKT String | |
| Northmost Latitude | -44.07 ° |
| Southmost Latitude | -44.93 ° |
| Eastmost Longitude | 221.90 ° |
| Westmost Longitude | 223.20 ° |
| Diameter | 55.00 km |
| Center Latitude | -44.50 ° |
| Center Longitude | 222.55 ° |
| WKT String | |
| Quad | mc29 [pdf] |
| Approval Status | Adopted by IAU |
|---|---|
| Approval Date | Nov 06, 2026 |
| Continent | North America |
| Ethnicity | United States |
| Origin | Alice Ilgenfritz Jones; coauthor with Ella Robinson Merchant of the 1893 novel “Unveiling a Parallel: A Romance,” under the pseudonym “Two Women of the West”; one of the earliest works of speculative science fiction, describing a utopian society on Mars (1846-1906). |
| Reference | [948] - Unveiling a Parallel: A Romance, by Two Women of the West: Arena Publishing Company, 1893. https://archive.org/details/unveilingparalle00jone/mode/2up |
| Updated | Nov 06, 2026 6:06 PM |
The boundaries shown on the maps above are approximate and are intended only to portray the locations of named features and their rough extents.
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