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Saturday August 27, 2016 at:
Session 1:  10:00 AM to 12:00 PM
Session 2:  4:00 PM to 6:00 PM
Session 3:  8:00 PM to ?:??

For explanation of the start times, read the "
Event Description" below...

Status updated by our Observatory Director on Saturday August 27, 2016 at 6:00 PM:

10:00 am observing session occurred with limited success.
4:00 pm session has been cancelled due to thin clouds
blocking view of Jupiter.

This evening's event has been CANCELLED due to threatening weather

Public Observing Event
at the ACA Observatory


Conjunction of Venus & Jupiter!
Planetfest - Doubleheader
WOW! Spectacular conjunction of Venus & Jupiter
separated by a mere 0.06°! Very Sweet!
However, it will be very low on the horizon so
we’ll attempt to observe this extremely close
conjunction early in the evening.

Event Description:
We have an amazing close conjunction between Jupiter & Venus occurring on Saturday August 27, 2016. This follows an October 26, 2015 conjunction and a very close June 30, 2015 conjunction. The planets will be separated by less than 0.07° this Saturday, easily seen in the same telescopic field of view. The only problem is the planets are very close to the Sun; so sunset viewing of this event is practically not possible. However, during the day, the two planets are viewable through the 16" observatory telescope. If conditions permit, Venus will appear as a bright nearly full disk and Jupiter will appear as a faint disk with equatorial bands just visible. The two planets in the same field of view should be quite a spectacular sight. One explanation of the "Star of Bethlehem is an extremely close conjunction between Jupiter & Venus on June 17th in the year 2 B.C. when the planets appeared to merge into one bright "star". So, our plan is to have a daytime observing session of the conjunction. The exact timing depends on sky conditions; we need a cloudless, deep blue sky with low humidity for best viewing. Cumulus clouds are okay if blue sky exists between clouds, but overcast or Cirrus clouds are not good;
that's why the final time of daytime observing event was decided on Friday for highest possibility of success. If sky conditions continue to be good, we'll have another planetary observing event in the evening to observe Mars & Saturn, as well as other celestial deep sky objects. The evening star party observing event will start at 8:00pm.


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.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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