Chest opened
+${chestReward.xp} XP
Explorer
NOUVEAU ×${chestReward.collectible.quantity}
tapez pour fermer
Chest locked

Open chests in the app

Around Us is built for your phone — chests unlock when you walk, explore and capture nearby places.

Enable Location

We need your location to show you interesting places around you

Discover nearby places

Find interesting locations and hidden gems around you

Precise directions

Get accurate directions and distances to places

Your location is never shared with other users. It's only used when you tap the location button.

Log in to your account

Start exploring — it's free

Trusted by 72,889 travelers worldwide

Continue with Google
Continue with Apple
or

We will send you a code to connect

By continuing, you accept our Terms and Conditions and our Privacy Policy

Check your inbox

We've sent a pincode in your inbox. Please enter the code below.

XO Telescope
Discussion Reviews Photo
3.1k Popularity

XO Telescope, Dual-lens telescope at Haleakalā, Hawaii.

The XO Telescope is an observation instrument at the summit of Haleakalā volcano in Hawaii that uses two camera lenses working together. The equipment operates at about 3,000 meters elevation and relies on straightforward commercial components modified for astronomical research.

The project started in the mid-2000s and detected its first planet in 2006, a large celestial body orbiting a sun-like star. This early discovery marked an important moment for the search for worlds beyond our solar system.

Teams of astronomers from around the world use this instrument to search for planets orbiting distant stars. The collaborative effort brings together both professional researchers and amateur observers who share a passion for discovering worlds beyond our solar system.

The location on a high volcanic summit means visitors should expect thinner air and cooler temperatures. It is important to allow time for acclimatization and bring appropriate clothing before visiting the observation facility.

The system detects planets by observing tiny brightness changes that occur when planets pass in front of their stars. This subtle detection method has proven surprisingly effective at finding worlds that would otherwise remain invisible.

The community of curious travelers

AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.

Start exploring
Location
GPS coordinates
20.70814,-156.25678
Latest update
December 12, 2025 09:08
Around this place
Show the full map
Reviews
Share your experience

No review yet

Discussions
Start a discussion...

No discussion yet

« XO Telescope - Dual-lens telescope at Haleakalā, Hawaii » is provided by Around Us (aroundus.com). Images and texts are derived from Wikimedia project under a Creative Commons license. You are allowed to copy, distribute, and modify copies of this page, under the conditions set by the license, as long as this note is clearly visible.

Discover hidden gems everywhere you go!

From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.

Around Us App Screenshot

A unique approach to discovering new places

Le Figaro

All the places worth exploring

France Info

A tailor-made excursion in just a few clicks

20 Minutes

Around Us
Travel Guide & Maps
Download

Send to your phone

QR Code
1

Open the camera app on your mobile.

2

Point at the QR code with your camera. A notification will appear.

3

Tap the notification to open the link.