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

Small Eyes Under the Skies January 2026

Small Eyes Under the Skies January 2026

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 January 2026

Through the Lens January 2026

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 January 2026

Wednesdays Under the Stars January 2026

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.

Quadrantid Meteor Mingle January 2026

Quadrantid Meteor Mingle January 2026

Saturday, January 3 (1:00 am – 3:00 am)

The Quadrantid meteor shower is one of the most active showers of the year but peaks in a narrow six-hour window. The radiant of the Quadrantid meteor shower, the point in the sky from which all of its meteors appear to originate, lies in the constellation Boötes. The meteors of this shower are described as “lacking consistent trains but often producing fireballs.”

Come join us for the first active early morning meteor shower of the new year!

This event is weather-dependent and will be canceled by e-mail 24 hours before the scheduled start time in the event of a cloud cover forecast greater than 40%.

Dress appropriately for lying still in nighttime cold outdoor weather. Warm beverages, many-layered clothing, and sleeping bags are all well-advised.

Questions? Feel free to contact us at observatory@hawthornhollow.org

Purchase tickets here.

The Geminid Meteor Mash I & II December 2025

The Geminid Meteor Mash I & II December 2025

Saturday, December 13 (6:00 PM – 8:00 PM or 8:15 PM – 10:15 PM)

The Geminid meteor shower is one of the most active and reliable annual showers. Unlike many showers that favor the pre-dawn hours, the Geminids are visible all night because the constellation Gemini (the shower’s radiant) rises in the early evening. Expect a steady pace of meteors, with the best rates after about 10 pm as Gemini climbs higher.
This year, a waning-crescent Moon rises late, so the evening hours will be the darkest; after moonrise, the thin crescent shouldn’t impact the brighter Geminids. Bring a reclining chair, warm layers, and a red-light flashlight. No telescope is required—just your eyes.

Weather policy: If the cloud-cover forecast exceeds 30% about 24 hours before start time, we’ll reschedule and notify ticket holders by email.

Purchase 6:00 – 8:00 pm tickets here.

Purchase 8:15 – 10:15 pm tickets here.

Questions? Observatory@hawthornhollow.org

The Ice and Gas Giants

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

Find tickets here! 

Questions about this event or others please contact us at observatory@hawthornhollow.org

Connect

262-552-8196

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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

 

 

 

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Hawthorn Hollow Nature Sanctuary and Arboretum is a private nonprofit 501(c)(3) that relies on the generosity of donors.