HMS Aster
| Name | HMS Aster |
| Type | Sloop |
| GRT | 1,250 tons |
| Country |  British |
| Built | 1915 |
| Builder | Earle’s SB. & Eng. Co., Ltd., Hull |
| Operator | Royal Navy |
| History |
U-boat attacks on Sloop Aster
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 4 Jul 1917 | UC 25 (Johannes Feldkirchner) | Sunk | Mined off Malta | 10 |
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