Star Party at Royer Oaks Observatory - July 22nd, 2017

The fourth Tule River Amateur Astronomers star party of 2017 is scheduled to be at Royer Oaks Observatory above Springville, on Saturday, July 22nd, 2017.

http://www.royeroaks.com

Royer Oaks Observatory
40708 Balch Park Road #B
Springville, CA 93265

http://goo.gl/maps/R5hxO

===A Look Back At Last Month===
We had to cancel last month (June 24th) because of clouds rolling in.

===A Look Ahead At This Month===
This month's party (July 22nd, 2017) will again prominently feature the solar system's largest two planets: Jupiter and Saturn. The summer Milky Way will be in its glory, so there will be plenty of bright deep sky objects to choose from. This will be our first decent look at the objects around Saggitarius and the southern Milky Way this year.
 
There will be a spectacular pass by the International Space Station at around 9:19pm. It will be high in the southeast and reach magnitude -3.6, about as bright as the planet Venus.
 
And then on the very next orbit of the ISS, about 90 minutes later at 10:55pm, it will be visible again low in the northwest. It will have traveled 4.8 miles per second for that 90 minutes, traveling all the way around the Earth. And in that 90 minutes you will have been traveling due east at about 1/4 mile per second on the surface of the Earth. That's why you first see it in the east and then in the west. It has come back around but you will have moved.
 
Please try to arrive at the observing site by 8:08p (sunset).  Be respectful of others as they try to get their eyes dark adapted.  Avoid using a white flashlight.

Sunrise: 5:54am
Solar noon: 1:01pm
Moonset: 7:38pm
Sunset: 8:08pm
Twi Civil: 8:37pm
Twi Nautical: 9:13pm
Twi Astronomical: 9:52pm
Day length: 14h 15m
 
The Weather:
The 10 day forecast for Springville can be found here:
http://www.weather.com/weather/tenday/Springville+CA+USCA1088:1:US

If the party is called off for any reason I'll inform everyone by mid-day on the day of the event.

ClearDarkSky is a good resource to monitor for the expected sky conditions at Royer Oaks Observatory.
http://cleardarksky.com/c/RyrOkObCAkey.html

Wondering what satellites might be flying over Royer Oaks? Use Heavens-Above.
http://heavens-above.com/?lat=36.21117&lng=-118.81268&alt=0&loc=Royer+Oaks&TZ=PST

You should bring warm clothes because it may get cold as the night progresses, a dim RED flashlight to protect your night-vision, and some drinking water.  (A thermos of coffee or hot chocolate and some snacks might not be a bad idea)  Lawn chairs and a blanket to lay on are also very popular.  If you have binoculars, definitely bring those.

Royer Oaks is about a 1 hour and 10 minute drive from Visalia.

Here is a complete list of the scheduled star party dates for 2017.  Note that dates are subject to change or cancellation depending upon availability of the observing site, and the weather.  If you can't make it for this gathering then please keep these dates in mind.

April 29, 2017
May 27, 2017
June 24, 2017
>July 22, 2017
August 12, 2017 (Tentative, depending on our solar eclipse trip and the Perseids)
September 23, 2017
October 21, 2017
November 18, 2017

For more information visit: http://www.royeroaks.com

Thanks,
Tule River Amateur Astronomers
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