Can you visit Calvin University Observatory? Yes
Open to visitors on clear weeknights Mon-Fri during semesters (7:30-11 pm, later after DST); Wednesdays only in summer; call the dome to check.
A public night at an observatory usually starts at dusk with a short talk, then a line at the eyepiece of the main telescope for the Moon, a planet or a bright cluster, with volunteers' smaller telescopes set up outside. Dress for the night air even in summer: domes are not heated, so the telescope stays at outside temperature. Many nights sell out or cancel for clouds, so check the observatory's site on the day.

Telescopes at Calvin University Observatory
16-imch Ritchey-Chretien.
How dark the sky is at Calvin University Observatory
Calvin University Observatory has no Bortle rating in the list yet. The scale below shows what each class looks like.
Sky brightness and class come from the World Atlas of Artificial Night Sky Brightness (Falchi et al. 2016, CC BY-NC 4.0), with natural skyglow added, at the coordinates below. Research telescopes are often sited on mountains above the haze, so the real sky can be darker than the map suggests.
Calvin University Observatory among the observatories of Michigan
Green dots are observatories open to the public, blue dots research or private sites, squares dark sky places; select one for its page. See Michigan observatories for the full list.
The coordinates on this page point to zip 49546 (approximate): 42.928°N, 85.548°W.
Map data © OpenStreetMap contributors. Open the larger map · Directions. Mountain observatory roads are often gated after dark; go only on a scheduled public night.
Dark sky places, observatories and clubs near Calvin University Observatory
Nearest dark sky places
| Place | Where | Bortle | Distance |
|---|---|---|---|
| Huron-Manistee National Forest | Michigan | 3 | 108 km (67 mi) |
| Dr. T.K. Lawless County Park | Michigan | 4 | 118 km (73 mi) |
| Beverly Shores Dark Sky Community | Indiana | 4 | 181 km (113 mi) |
| Indiana Dunes National Park | Indiana | 4 | 184 km (114 mi) |
| Tippecanoe River State Park | Indiana | 4 | 216 km (134 mi) |
| Sleeping Bear Dunes National Lakeshore | Michigan | 2 | 217 km (135 mi) |
Other observatories open to the public within 150 km
- James C. Veen ObservatoryLowell, Michigan, 15 km (9 mi). GRAAA public nights on 2nd and 4th Saturdays Apr-Oct when clear; $5 adults, $3 youth; Starwatch line 616-897-7065
- Fox Park Public ObservatoryPotterville, Michigan, 73 km (45 mi). Eaton County Parks observatory run with Capital Area Astronomy Association volunteers; public nights in season (see Night Sky Network calendar)
- Michigan State University ObservatoryEast Lansing, Michigan, 85 km (53 mi). Free public observing nights on about 13 Saturdays Apr-Oct, no registration
- Brooks Astronomical ObservatoryMt. Pleasant, Michigan, 91 km (56 mi). Monthly public open nights during the academic year (since 1976)
Astronomy clubs within 150 km
- Grand Rapids Amateur Astronomical AssociationLowell, Michigan, 11 km (7 mi). Meets Monthly in winter, spring and autumn at Grand Rapids Public Museum
- Shoreline Amateur Astronomical AssocHolland, Michigan, 48 km (30 mi). Meets Monthly membership meetings Sep-May (none in summer); see holland-saaa.org for venue
- Muskegon Astronomical SocietyMuskegon, Michigan, 62 km (39 mi). Meets Monthly business meeting at the MAS Observatory (Muskegon County Wastewater site)
- Kalamazoo Astronomical SocietyKalamazoo, Michigan, 74 km (46 mi). Meets 1st Friday most months, 7 pm
- Capital Area Astronomy AssociationEast Lansing, Michigan, 90 km (56 mi). Meets Monthly, Wednesday 7 pm
Star parties near Calvin University Observatory
| Star party | Near | Distance | Usual timing |
|---|---|---|---|
| Great Lakes Star Gaze | Gladwin, Michigan | 145 km (90 mi) | September new moon |
| Bootleg Fall Star Party | Harmon, Illinois | 357 km (222 mi) | Autumn new moon |
| Bootleg Spring Star Party | Harmon, Illinois | 357 km (222 mi) | Spring new moon |
| Starfest | Ayton, Ontario | 392 km (243 mi) | August new moon |
Planning a trip? Astrotourism in Michigan puts the dark sky places, observatories, clubs, star parties, planetariums and science centers of the state on one map, with the best night out worked out.
Calvin University Observatory record
Every value in the observatories dataset for Calvin University Observatory
| ID | 29 |
|---|---|
| Name | Calvin University Observatory |
| Address | Science Building roof, Calvin University, 3201 Burton St SE |
| City | Grand Rapids |
| State | MI |
| Zip | 49546 |
| Country | USA |
| Web | https://www.calvin.edu/observatory/visit-us |
| Public | y |
| Telescope | 16-imch Ritchey-Chretien |
| Lat | 42.92800 |
| Lon | -85.54830 |
| LatLonSpot | zip 49546 (approximate) |
| Status | Active |
| PublicNote | Open to visitors on clear weeknights Mon-Fri during semesters (7:30-11 pm, later after DST); Wednesdays only in summer; call the dome to check |
| Sources | https://www.calvin.edu/observatory/visit-us |
From the site's observatories dataset (observatories_q426). Distances are computed from the coordinates.