Where to Observe ?:
Where to Observe ? To achieve resolution > 4 arcseconds, we need a baseline between our two observation of 3000km.
Since the earth is moving at 30km/s, we could achieve this baseline in the same location with a time span of 100 seconds (~2min.)
We must find a location that has optimal weather and airmass at the time of the eclipse.
The two locations should have similar airmass at the time of observation.
I have chosen several reference locations along the path of the eclipse to calculate the airmass at the time of eclipse and compare average weather conditions for August.
Slide3:
The point of
greatest
eclipse occurs
here, near
Nadym, Russia. . The airmass at
the time of
eclipse quickly
increases in
either direction.
Calculated airmass along the path of the eclipse:
Calculated airmass along the path of the eclipse 1.85 1.80 1.81 1.94 2.04 2.32
Slide5:
Mean cloudiness
along the path
of the eclipse Ostrov Litke Nizhnevartovsk Novosibirsk Barnaul Altay Nadym
Slide6:
Summarizing Conditions Along Path
Slide7:
Compromising between airmass and weather,
the best choice is…
Slide8:
Compromising between airmass and weather,
the best choice is…
Slide9:
Novosibirsk and Barnaul, Russia are the best choices considering both airmass and weather.
At these two locations the eclipse will occur about 5 minutes apart, which is more than enough time.
Although the weather in this region is not as arid as is ideal, any farther south and the airmass rises to about 3. Conclusion