Look Up!
The Charles and Kathryn Heide Observatory at Hawthorn Hollow features a PlaneWave CDK17 telescope on an L-Series 500 mount in an automated dome as well as two mounts for smaller telescopes outside the dome. The observatory, located on the meadow at the center of the arboretum at Hawthorn Hollow, hosts daytime and nighttime field trips & classes, scout merit badge workshops as well as star parties and astrophotography projects. Please send inquiries or requests for events to:
observatory@hawthornhollow.org
Upcoming Events
Wednesday Under the Stars
November 19 @ 5:30 pm - 7:30 pmThrough the Lens
November 20 @ 5:30 pm - 7:30 pmSmall Eyes Under the Skies
November 21 @ 4:30 pm - 6:00 pmThe Moon and Gas Giants
November 21 @ 8:00 pm - 10:00 pmWednesday Under the Stars
November 26 @ 5:30 pm - 7:30 pm
Small Eyes Under the Skies November 2025
Fridays, (4:30pm – 6:00 pm)
Join us for a captivating evening of exploration at The Heide Observatory with our family-friendly event, “Small Eyes Under the Skies.”
Together, we’ll journey through a scaled model of our solar system across the meadow—an interactive outdoor adventure that reveals the incredible sizes and distances of our celestial neighbors. After our trek, enjoy a breathtaking telescope viewing session, where you’ll witness planets, star clusters, and other cosmic wonders up close.
🌟 Space is limited, so reserve your tickets early for this stellar experience!
Weather and Attendance Information
In the event of cloud cover greater than 40% or if fewer tickets are sold than needed to support staffing, the event may be rescheduled.
You’ll receive a confirmation or reschedule notice by email at least 24 hours before the event.
If you haven’t heard from us by then—or would like faster weather updates—please email your number to the observatory team for personal text notifications about your event, and remember to check your spam folder if you have not received a confirmation for emails.
What to Bring
Please dress for the weather and wear appropriate footwear for our outdoor “walk through the solar system.” The activity takes place in the open field, so layers and sturdy shoes are recommended.
Purchase tickets here or email observatory@hawthornhollow.org.
Through the Lens November 2025
Thursdays, (5:30 pm – 7:30 pm)
An Evening of Deep Sky Discovery at The Heide Observatory
Experience the awe and wonder of the cosmos at “Through the Lens,” an immersive night of stargazing at The Heide Observatory.
Step inside the observatory dome to peer through our powerful 17-inch telescope, where you’ll take turns exploring binary stars, distant planets, shimmering galaxies, and other celestial marvels.
While you await your turn inside, enjoy an outdoor guided sky tour led by our knowledgeable astronomy staff. Beneath the open sky, you’ll learn to recognize constellations, trace the paths of planets, and connect your observations through the telescope to the grand panorama of the night sky above.
🌟 Tickets are limited, so reserve early for this unforgettable journey through the universe.
Weather and Attendance Information
This program is weather-dependent. In the event of cloud cover greater than 40% or if ticket sales are too low to fund event staffing, the session will be rescheduled.
Participants will receive a confirmation or reschedule email at least 24 hours before the event.
If you have not heard from us prior to the event, please check your spam or promotions folder for messages from the observatory.
What to Bring
Please dress for evening outdoor weather, as part of the program takes place outside under the stars. Warm layers and comfortable footwear are recommended.
Purchase tickets here or email observatory@hawthornhollow.org.
Wednesdays Under the Stars November 2025
Wednesdays, (5:30 pm – 7:30 pm)
A Relaxing Evening of Stargazing at The Heide Observatory
Unwind beneath the night sky at “Wednesday Under the Stars,” a tranquil and inspiring experience hosted at The Heide Observatory.
Recline in one of our zero-gravity chairs with your favorite beverage in hand and prepare for an unforgettable journey across the cosmos. Our astronomy guides will lead you on a laser-assisted tour of the heavens—revealing brilliant stars, planets, constellations, galaxies, and other celestial wonders.
As you gaze upward, discover the stories, science, and hidden connections that bring these cosmic objects to life. Sit back, relax, and savor the magic of the universe in this one-of-a-kind evening under the stars.
🌟 Space is limited, so reserve your tickets early for this peaceful night of discovery and wonder.
Confirmation and Communication
Within 24 hours of purchase, you’ll receive a confirmation email verifying your reservation.
If your confirmation has not arrived or if your contact email differs from the one used at checkout, please reach out to observatory@hawthornhollow.org.
Weather and Attendance Information
This program is weather-dependent. In the event of cloud cover greater than 40% or if ticket sales are too low to fund event staffing, the program will be rescheduled.
Participants will receive an email notification at least 24 hours before the event regarding any schedule changes.
What to Bring
Please dress appropriately for nighttime outdoor weather. We recommend layers and comfortable clothing for an evening of relaxed stargazing.
Purchase tickets here or email observatory@hawthornhollow.org.
The Ice and Gas Giants
Friday, November 7 (9:00 pm – 11:00 pm)
Come out to the Heide Observatory for an evening focused on the planets under darker skies—no Moon this time, which means better contrast for distant worlds. Weather permitting, we’ll feature the gas and ice giants through our telescopes: Saturn and its rings, Jupiter with its cloud belts and Galilean moons, plus Uranus and Neptune.
Given clear skies, these targets will be positioned well for evening viewing. We’ll confirm the exact lineup in the event-day email based on visibility.
This event may need to be rescheduled if the cloud cover outlook is over 40%—please watch for a confirmation email from the observatory.
Dress appropriately for nighttime outdoor weather.
Questions about this event or others? Observatory@hawthornhollow.org
Questions about this event or others please contact us at observatory@hawthornhollow.org
The Moon and Gas Giants
Friday, November 21 (8:00 pm – 10:00 pm)
Come out to the Heide Observatory to observe the Moon in the evening sky as it guides you to Saturn, Jupiter, Neptune, and Uranus—the gas and ice giants of our solar system. Given clear skies, these bright worlds are easy to spot in our telescopes, and the Moon (the night’s second-brightest object) makes star-hopping simple.
This event may need to be rescheduled if the cloud cover outlook is over 40%—watch for a confirmation email.
Dress for nighttime outdoor weather.
Questions? Observatory@hawthornhollow.org
Astronomy of Native America 2025
Tuesday (November 25) 7:00 pm – 9:30 pm
Have you ever looked up at the night sky and wondered what someone standing in the same spot in the past saw and thought when they looked up?
500 years ago contact between Europeans and Indigenous Americans of the time changed the world, resulting in the collapse of Aztec and Inca empires and triggering a hemispheric pandemic that may have caused the Little Ice Age which ensued. Prior to this contact, indigenous American conceptions of the sky had no input from the astronomical ideas circulating in the rest of the world.
On Tuesday, November 25, in a series of short, five-to-fifteen-minute presentations by UW-Parkside students currently enrolled in the Astronomy of Native America course, we will explore the range of astronomical understanding and beliefs among indigenous groups of the Americas from the Inuit peoples of the Arctic to the Maya, the most astronomical advanced civilization of pre-Columbian Mesoamerica.
Presentations begin at 7:00 pm and proceed until completion, estimated around 9:30 pm. Questions are welcome at the end of each presentation. Weather-permitting, the presentations will be given outside the Heide Observatory dome (directions here), and the observatory will be open afterward for a brief tour and night-time sky viewing. In the event of rain, the presentations will be held inside the Hawthorn Hollow Nature Center.
Have questions? Please contact us at Observatory@hawthornhollow.org.
For reservations click here
Visit
880 Green Bay Road
Kenosha, WI 53140
Admisson is Free
Trail Donation Suggested
Hours
OPEN:
March 1 – Oct. 31
8:00 – 5:00
Nov. 1 – Dec. 23
8:00 – 4:00
Closed Mondays &
Closed for the Season
December 24 – March 1st
Donate Here
Hawthorn Hollow Nature Sanctuary and Arboretum is a private nonprofit 501(c)(3) that relies on the generosity of donors.