| MRGID |
http://marineregions.org/mrgid/26627 |
| Status |
Proposed standard  |
| Names |
| Language |
Name |
Name source |
| English | Castor Guyot | IHO-IOC GEBCO Gazetteer of Undersea Feature Names |
| English | Hanzawa Seamount | US BGN Advisory Committee on Undersea Features (ACUF) |
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| PlaceType |
Guyot(s) |
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| Latitude |
25° 49' 59.8" N (25.83327°) |
| Longitude |
146° 54' 4.2" E (146.90118°) |
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| Min. Lat |
25° 28' 1.2" N (25.467°) |
| Min. Long |
146° 25' 1.2" E (146.417°) |
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| Max. Lat |
26° 22' 1.2" N (26.367°) |
| Max. Long |
147° 25' 58.8" E (147.433°) |
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| Source |
IHO-IOC GEBCO Gazetteer of Undersea Feature Names, available online at http://www.ngdc.noaa.gov/gazetteer/ |
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| Notes |
(en): JCUFN domestically calls this feature Hanzawa Seamount, after the renowned Japanese geologist Shoshiro Hanzawa. |
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GEBCO: associated meeting, proposer and year of proposal (en): Associated meeting: SCUFN-24. Proposer: Japanese Committee on Undersea Feature Names (JCUFN). Year of proposal: 2011. |
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GEBCO: discoverer and year of discovery (en): Discoverer: Japanese survey vessels "Takuyo" and "Shoyo". Year of discovery: 2002. History: Castor and Pollux were mythological twins for which the zodiac sign, Gemini is named. The stars are in the Gemini constellation and are primary navigational stars. |
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Additional information (en): Adopted from the US BGN-ACUF Gazetteer. This feature has a distorted triangular shape. JCUFN domestically calls it Hanzawa Seamount, after the renowned Japanese geologist Shoshiro Hanzawa. Minimum depth (m): 380. Maximum depth (m): 5400. Total relief (m): |
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Coordinates in ACUF (en): Latitude: 25.833333; Longitude: 147 |
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ACUF unique id (UFI) (en): -152849 |
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Previous coordinates (en): Lat: 25.755; Long: 147.15 (update 2026-09-29) |
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| Edit history |
Last edited on 2026-09-29 09:47:45 by Lonneville Britt
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