One Sky Key
A credible night-sky stay or destination with verified darkness and a usable way for guests to observe.
Best for dark-sky lodges, certified parks, astronomy-adjacent hotels, and strong first-time stargazing stays.The night-sky standard for places worth traveling to.
Stella Certification helps travelers understand which hotels, lodges, islands, observatories, and dark-sky destinations can actually deliver a memorable night under the stars.
Sky Key tiers
A simple way to read the quality of the night.
The tier tells you how central the sky is to the stay. A higher tier means a stronger, more repeatable astronomy experience for guests.
Two Sky Keys
A property where the night sky is a real guest amenity, not just a backdrop.
Best for telescope stays, guided programs, private-island sky experiences, and resorts with repeatable astronomy nights.Three Sky Keys
A destination-level astronomy experience with exceptional darkness, serious equipment, and a polished guest program.
Best for observatory resorts, resident-astronomer stays, special-access observatories, and places travelers should plan around.Five signals
What Stella verifies before a place earns the badge.
Certification is not based on a single claim. Each review combines sky quality, guest access, astronomy support, light stewardship, and booking confidence.
Sky quality
Measured or well-supported darkness, Bortle context, moonless windows, weather patterns, and honest seasonality.
Guest sky access
A real place to observe: telescope deck, observatory, open horizon, dark beach, desert site, or guided offsite access.
Astronomy support
The tools and people that make the sky usable for guests: telescopes, resident astronomers, trained guides, or credible partner observatories.
Light stewardship
Low-glare lighting, dark-sky policy, protected setting, or operating practices that preserve the night for guests and neighbors.
Booking confidence
Official website links, current program evidence, recent verification notes, direct booking paths, and clear guest instructions.
Special distinctions
The details that make a night worth planning around.
Distinctions sit beside the Sky Key tier so travelers can quickly see what kind of astronomy experience a place offers.
Observatory Stay
Onsite dome, observatory, or dedicated telescope infrastructure available to guests.
Astronomer-Led
A resident astronomer, trained guide, or formal partner leads the night-sky experience.
Dark-Sky Steward
The property or destination actively protects darkness through lighting, policy, or conservation.
Sky Dining
A repeatable dining or private-event program built around guided observing.
Remote Wilderness
A low-light, lightly built setting where isolation is central to the night-sky value.
Review process
How a stay moves from claim to certified listing.
- 1
Review official property, destination, and observatory sources.
- 2
Check darkness, seasonality, horizon quality, light conditions, and weather constraints.
- 3
Verify astronomy equipment, guide availability, and current guest access.
- 4
Confirm official booking links, source dates, photos, and program language.
- 5
Assign a Sky Key tier and any special distinctions, then recheck when evidence changes.
For hotels and destinations
Start certification reviewHave a real night-sky program?
Send official links, booking details, telescope or observatory information, sky-quality evidence, and current photos. Stella will review the evidence before publishing any certification language.
Traveler questions
What the badge does and does not mean.
Is Stella Certification the same as a dark-sky park designation?
No. Dark-sky designations are important source evidence, but Stella Certification is travel-focused. It asks whether a guest can realistically book, arrive, observe, and understand what the night can deliver.
Can a bright-city hotel be certified?
Only in a limited way. Urban observatories and education partners can be listed, but the strongest Sky Key tiers require real darkness or special-access astronomy that compensates for the setting.
Can a property qualify without a telescope?
Yes, but the bar is higher. A truly dark location with guided interpretation, reliable viewing areas, and clear guest planning can qualify. Telescope programs, observatories, and trained guides raise the tier.
How should hotels apply?
Send the official website, booking link, astronomy program details, sky-quality evidence, lighting practices, and current photos. Stella reviews the evidence before making any certification claim.