Planetary Names

Gazetteer of Planetary Nomenclature

International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN)

Planetary Names: Crater, craters: Helena on Vesta

Helena

Feature Name	Helena
Clean Name	Helena
Feature ID	14906
Target	Vesta
Feature Type	Crater, craters
Coordinate System	Planetocentric, +East, 0 - 360
Control Network	IAU Coordinate System for (4) Vesta
Northernmost Latitude	-39.03 °
Southernmost Latitude	-43.99 °
Easternmost Longitude	275.65 °
Westernmost Longitude	269.45 °
Diameter	22.06 km
Center Latitude	-41.51 °
Center Longitude	272.55 °
WKT String	POLYGON ((272.3089303575614 -43.9881222901117, 271.8273255867326 -43.92709932844343, 271.3635827877647 -43.80655599294676, 270.9291208474424 -43.629460460602, 270.5346376606329 -43.40017341116187, 270.1898467126101 -43.12434065274366, 269.90323790081 -42.80875410329608, 269.681868485379 -42.46118455103824, 269.5311893160082 -42.09019031186392, 269.4549106139229 -41.7049064952009, 269.4549106139229 -41.3148200672991, 269.5311893160082 -40.92953625063608, 269.681868485379 -40.55854201146176, 269.90323790081 -40.21097245920392, 270.1898467126101 -39.89538590975634, 270.5346376606329 -39.61955315133813, 270.9291208474424 -39.390266101898, 271.3635827877647 -39.21317056955324, 271.8273255867326 -39.09262723405656, 272.3089303575614 -39.03160427238829, 272.7965383924386 -39.03160427238829, 273.2781431632674 -39.09262723405656, 273.7418859622353 -39.21317056955324, 274.1763479025576 -39.390266101898, 274.5708310893671 -39.61955315133813, 274.9156220373899 -39.89538590975634, 275.20223084919 -40.21097245920392, 275.423600264621 -40.55854201146176, 275.5742794339918 -40.92953625063608, 275.6505581360771 -41.3148200672991, 275.6505581360771 -41.7049064952009, 275.5742794339918 -42.09019031186392, 275.423600264621 -42.46118455103824, 275.20223084919 -42.80875410329608, 274.9156220373899 -43.12434065274366, 274.5708310893671 -43.40017341116187, 274.1763479025576 -43.629460460602, 273.7418859622353 -43.80655599294676, 273.2781431632674 -43.92709932844343, 272.7965383924386 -43.9881222901117, 272.3089303575614 -43.9881222901117))
Continent	Europe
Ethnic/Cultural Group or Country	Roman
Quad	-
Reference	[259] - Helena Agusta, by Jan Willem Drijvers: E.J. Brill, The Netherlands, 1992.
Approval Status	Adopted by IAU
Approval Date	Dec 27, 2011
Origin	Flavia Iulia Helena Augusta; mother of Constantine the Great.
Last Updated	Mar 18, 2014 1:59 PM

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Helena

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