Star Party: Mars Viewing

OMSI Star Parties event image
JUL 21, 2018 | Sunset

(7/21/18) Clear and beautiful sky for tonight's OMSI Star Party - Mars Viewing at both Stub Stewart SP and Rooster Rock SP.  See you tonight!  Jim


Get ready to see planet Mars up close!  The red planet reaches opposition on July 27 and makes its closest approach to Earth on July 31.  Its rapid increase in brightness over the past few weeks has been amazing to see.  This will be the closest and brightest view of the neighboring red planet since 2003.  

Because Mars will be in position for viewing on Saturday, July 21, the OMSI and Rose City Astronomers have organized free Star Parties at Rooster Rock State Park and Stub Stewart State Park starting at 9:00 pm. From beginners to experts of all ages, here's your opportunity to view the moon, stars and other celestial objects up close and personal through telescopes. For Mars, best viewing will be after 11:30 pm when it will clear the SE horizon.  Other viewing highlights include waxing gibbous moon, Venus, Jupiter, Saturn and more! 


On the scheduled day of each OMSI Star Parties, it is suggested that interested visitors check back here for possible weather-related cancellations.


Warm clothing and a flashlight with red light are recommended. Personal telescopes and binoculars are welcome.

Rooster Rock State Park | Take I-84 east of the Sandy River at exit 25. The park is located 22 miles east of Portland.
L.L. "Stub" Stewart State Park | Take US-26 west of Portland and turn right on OR-47. The park is located 34 miles west of Portland.