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Saturday September 5, 2015 at 8:00 PM

Status updated by our Observatory Director on Saturday 9/5/2015 at 4:00 PM:

Forecast calls for clouds to dissipate, clear skies ahead.
The observatory will be open at 7:30 pm for views of Saturn before
we start the presentation promptly at 8:00pm.

Public Observing Event
at the ACA Observatory


Presentation: Mathematical Illustration of Time Dilation
Observing session to follow:
Summertime Open Clusters

Special notes about this event from our Observatory Director...

If we wish to travel to the stars, we'll need to take advantage of
time dilation to get there. This talk is not a traditional presentation
and will take you back to your high school days in math class.

Please arrive on time as we will first discuss historical experiments
which will give better insight into the illustration of time dilation.

Observing session will follow featuring Summertime Open Clusters.

  Click for MAP & DIRECTIONS to ACA Observatory

.Visible satellite passes from the ACA Observatory:

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Live AccuWeather Satellite Mosaic

Solar System objects rise/transit/set times from the ACA Observatory on the date of this event...

New feature: The "T" on each object's line in the chart above indicates the time of transit in addition to the rise and set times for the object.

Jet Stream
updates automatically to latest available image)
    The Jet Stream affects astronomical "seeing" (steadiness of the air)
    If we're in a gray area, seeing will not be as good as in a white area.
    If we're in a white area, the shorter the arrows, the better.

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