Our sponsors help us deliver a great product and we appreciate their support. We have a number of sponsor opportunities available starting as low as $100.00.  Every sponsor opportunity comes with a specific list of benefits.  Sponsor opportunities offer a great way to promote your product or services to attendees at our expo. 

Here is a current list of sponsors.  Check back often to see our list grow:


Cash Sponsors:

Solar Glasses Sponsors:

Handout Sponsors:

In-Kind Sponsors:

Donate to our cause

Please consider supporting making a 501(c) 3 tax deductible donation to the St. Louis Astronomical Society to support our efforts to make this expo FREE for the public and to purchase eclipse glasses for schools.


FREE tickets, FREE parking!


Attend the expo for FREE
if you pre-register!   Parking is FREE for everyone!

Get tickets

FREE eclipse glasses

FREE eclipse glasses for everyone (while supplies last).  Eclipse glasses are one method of safely viewing the partial phase of an eclipse.

FUN activities

Learn about the Sun, total solar eclipses and astronomy with FUN activities including a mobile planetarium.  Weather permitting, solar telescopes will be available to view the Sun. 

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