ok
our latest exchange crossed in the mail
but no matter
my great circle arc calculation between the stated degminsec
coords for dry rue & wet rue is 1029 meters
whereas i was expecting about 1088 meters from measuring at
topozone
so you cannot take my integral seconds as reliable for dry rue
as they need to be rounded to the nearest 5 seconds at least
instead
your stated west longitude of 169 degrees flat
or 169 00 00 even
in message 16664
cant really be improved on by my manipulations
so heres a cheer for being right on the money & indeed more
correct than you realized at the time
--- In
BoundaryPoint@yahoogroups.com, "aletheiak"
<aletheiak@y...> wrote:
>
> roger
> i can confirm from my 250k scale radar image mosaic map of
> the rat islands
> a personal favorite of mine btw
> that semisopochnoi island is less than 10 miles from
longitude
> 180 & thus certainly projects sufficient american territorial
waters
> to make 180 both the easternmost & westernmost longitude
> within american sovereign territory
> without any need to invoke the additional overlap of the
> somewhat less sovereign but still american & still exclusive
> economic zone
>
> also fyi this map shows semisopochnoi or some nearby rocks
> extending as far east as east longitude 179d 46m 22s
>
> & my 250k scale map of amatignak island shows some rocks
> west of its westernmost point too
> perhaps as far west as west longitude 179d 6m 50s
>
>
> & from topozone of all places i have been able to crib a
probably
> fairly reliable reading on dry rue
> aka the easternmost point on big diomede island
> namely west longitude 168d 59m 58s
> & news that it now appears only about 1088 meters from wet
rue
>
> but since i am not sure how reliable these topozone data are
> it remains to check them with a great circle distance calculator
>
> --- In BoundaryPoint@yahoogroups.com, "aletheiak"
> <aletheiak@y...> wrote:
> >
> > the map at the end of this official but as yet unratified treaty
> > http://russia.shaps.hawaii.edu/fp/us/agree.html
> > gives west longitude 168deg 58min 37sec as wet rue
> > aka the easternmost extremity of russian territorial waters
> > but it is based on a fully ratified 1867 treaty
> > so i presume it is correct & effective
> >
> > that is absolute rue too
> >
> > & dry rue
> > aka the easternmost point of dry land in russia
> > is about 1500 meters west of that
> > on the easternmost point of big diomede island
> >
> > but i could only approximate the longitude for that
> > if you still want it anyway
> >
> > & please see 1 insert below
> >
> > --- In BoundaryPoint@yahoogroups.com, "Roger_Rowlett"
> > <roger.rowlett@a...> wrote:
> > >
> > > I'm a lurker in this group.
> > >
> > > But I was curious if anybody has the exact coordinates for
the
> > > geographic extremes for Russia since it straddles the 180
> > Meridien.
> > >
> > > The United States has "through the looking glass"
extremes
> > because
> > > the Aleutians in Alaska straddle the Meridien (in which
> Alaska
> > has
> > > the North, East and West geographic extremes for the U.S.)
> > >
> > >
> > > West Point on Amatignak Island at 179° 06' 31" west is
> > considered
> > > the extreme west point of the U.S.
> > >
> > > Pochnoi Point on Semisopochnoi Island has coordinates
of
> > 179° 46'
> > > East is only 70 miles WEST of Amatignak but it gets the
East
> > > designation.
> >
> > again a distinction could be made between wet & dry
> >
> > the easternmost & westernmost points of the usa actually
> > converge further
> > if you mean to include the american territorial waters
> > &or the american eezs
> >
> > technically the easternmost & westernmost points of the usa
> are
> > both at 180 longitude
> >
> > just like the dry east & west russia extremes you mention
> below
> >
> > > And just to make things interesting the Aleutians continue
> > another
> > > 300 miles WEST to Cape Wrangell on Attu Island at 172°
54'
> > East
> > > Even though Attu Island is as far as you can go from right to
> left
> > > on a map for both Alaska and the U.S. it doesn't count as
any
> > > extreme by our traditional ways of determining this.
> > >
> > > Presumably Russia would have similar looking glass
> > coordinates
> > > although perhaps not quite so dramatic since the 180
> > meridien
> > > crosses a big swath of Siberia (so the east/west Russia
> > extremes
> > > would be either side of it for its length). In most maps you
> > > usually don't see this as they show the manually adjusted
zig
> > > zagging dateline.
> > >
> > > I was just curious to find the official coordinates on how far
> > > Russia extends into the Western Hemisphere.