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Tuesday May 16, 2016 at 8:45 PM
Announced by our Observatory Director on Sunday, May 14, 2017 at
6:05 PM |
Status updated by our Observatory Director on Tuesday,
May 16, 2017 at 4:10 PM... |
Event Report: Posted by our Observatory Director on
Tuesday, May 16, 2017 11:23 PM... |
We had a good observing session this evening. Jupiter
put on a marvelous show presenting us with an
occultation of Ganymede. However, unlike the occultation
of Io on April 26th, tonight's event lasted quite a bit
longer as Ganymede hovered near the limb of Jupiter for
about 30 minutes before disappearing behind the planet.
The extra time gave everyone multiple chances to observe
the event. The Iridium Flare at 9:28pm was well-placed
and one of the brightest we've seen in a while
(magnitude -5.8). We observed open cluster M67, globular
cluster M3, The Ghost of Jupiter (NGC 3242), and the
double star Mizar before clouds moved in around 10:15pm.
Turnout was pretty good with many members and
non-members coming out to stargaze. |
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Public
Observing Event
at
the ACA Observatory
Impromptu Event!
It looks like a great evening for stargazing; cool
temperatures, low humidity, and clear skies. |
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Here's what's on the observing list for tonight... |
* Jupiter will be well-placed for
observing
* An exceedingly bright Iridium Flare will
be observable during the star party
* Galaxies of the Virgo Cluster
* Star clusters M3 & M67 |
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.Visible satellite passes from the ACA Observatory:
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sure to hit the REFRESH / RELOAD button on your browser
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Live AccuWeather Satellite Mosaic |
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Solar System objects rise/transit/set times from the ACA Observatory on the date of this event... |
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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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