Slooh Advanced for Amateur Astronomy

You Already Know the Sky. Now Master It.

Research-grade telescopes in three hemispheres. RA/Dec coordinate control. Image presets for photometry and astrometry.

YOUR INSTRUMENTS

Nine Telescopes. Three Continents. Your Coordinates.

No more waiting for clear skies in your backyard. Control telescopes at 9,000 feet in the Canary Islands, the Chilean Andes, and outback Australia — and point them wherever you want using RA/Dec coordinates.

ADVANCED CAPABILITIES

Go Farther Into the Sky

Advanced missions and Quests don't just point you at objects — they allow you to measure, analyze, and understand them.

See Telescope Specifications

See The Whole Sky

RA/Dec Coordinate Control

Go beyond the catalog. Enter custom coordinates to observe any target, including newly discovered objects.

Access All Settings

All Catalogs & Processing Presets

Full access to every catalog and processing preset. Photometry, astrometry, spectroscopy and deep imaging ready out of the box.

More Telescope Time

1 Advanced Mission at a Time

Choose telescope, date, time, target. Plus 5 standard missions running simultaneously.

FAQs

What's the difference between Explorer and Advanced?

Explorer gives you live feeds, guided Quests, and standard mission scheduling. Advanced adds RA/Dec coordinate control, all catalogs and processing presets, Advanced Mission scheduling (choose telescope, date, time, target), FITS data, spectroscopy, and Advanced Mission Quests.

What data formats do I get back from a mission with an Advanced plan?

Every mission delivers calibrated FITS files plus processed PNGs. FITS headers include exposure time, filter, coordinates, and telescope ID — supporting photometry, astrometry, spectroscopy, and astrophotography post-processing.

Can I submit observations to the Minor Planet Center?

MPC submission permission is available through the MPC Astrometry Quest on an Advanced or Pro account. Advanced members can track asteroids and practice astrometric measurement, but official MPC submissions require an MPC Badge.

Slooh in action

Exploring the Sky Together

Some of the best questions on Slooh come from members. One observer raises something they're curious about, and another points the telescopes at it. When Betelgeuse made headlines for fading below its usual brightness, members pulled images from across the network and stitched them into an animation to see the change with their own eyes, then opened the project up for others to contribute their own captures. That's citizen science in practice: collaborative, hands-on, and driven by real curiosity.

MEMBER PROJECT

Betelgeuse (Alpha Orionis)

Gordon P. shared a post in the "Astronomers Anonymous" club about how Betelgeuse's brightness was dimming below historical levels. He was interested to see if we could show a change in the brightness of Betelgeuse (Alpha Orionis), using images from past and current missions. This animation is for you Gordon. If anyone else has Betelgeuse missions from the last year that they would be happy to share - in the "Astronomers Anonymous" club - I will add them to the animation. I haven't done any photometric calibration, these are just the Slooh processed PNG images.

Captured by CameronM.2018 on Slooh Canary Two Wide Field

Advanced Quests

Systematic Exploration, Not Random Pointing

Advanced Quests are structured investigations — each one asks you to capture specific targets, measure what you see, and build a poster that documents your work. They're the difference between browsing the sky and mastering it.

Charting the Cosmos

Map objects across the celestial coordinate system using RA and Dec. Build spatial intuition for survey planning and target acquisition — the foundation of everything else.

Cosmic Recycling

Capture examples across the full stellar lifecycle — from O-type main sequence stars through planetary nebulae and supernova remnants. Spectral class, mass, and evolutionary stage documented.

The Blinking Eye of the Gorgon

Monitor Algol's eclipsing binary cycle over multiple nights. Measure the brightness dip. Build a light curve and compare it to published data. Real photometry with mythological roots.

Quest: Advanced Missions - Astro Image Mosaics

Quest: Advanced Missions - Combining FITS Files

Browse all Quests

PLANETARY SCIENCE

From Earth’s Surface to the Edge of the Solar System

Advanced access pairs Slooh’s satellite feeds with full solar and planetary monitoring. Observe Earth from orbit, track sunspots and prominences in H-alpha, and follow the planets through their seasons — all with the same instruments and data formats as your deep-sky work.

Observation of the eruption at Piton de la Fournaise

Solar Monitoring in H-alpha

Track active regions, prominences, and filaments on the Sun’s surface — the only star close enough to watch change from one day to the next.

Planetary Imaging

Image the disks of Jupiter, Saturn, Mars, and Venus. Follow the Great Red Spot and Saturn’s ring tilt across an observing campaign.

Earth Observation from Orbit

Slooh’s satellite feeds put real remote-sensing data in your hands — geology, weather systems, and surface change, studied with the same rigor you bring to the night sky.

THE LIVE EXPERIENCE

Where Serious Observers Compare Notes

You already know your way around the sky. Slooh's Star Parties give you something your backyard setup can't — research-grade apertures under three of the darkest skies on Earth, pointed live alongside other observers who take this as seriously as you do. Bring your questions, your targets, and your hard-won technique. This is the room for them.

Be on Target When It Counts

Occultations, outbursts, a comet at peak, a nova alert — when the sky does something that won't wait, we gather and point fast, so you're observing the moment instead of missing it to weather or geography.

A Room Full of Real Observers

Trade technique with people who know the details. Star Parties draw committed observers from 55+ countries.

Walk Away With the Data

Anything you capture during a Star Party lands in your gallery as downloadable data — ready for processing, a personal project, or to share with the world.

Testimonials

How Amateur Astronomers Use Slooh

Amateur Astronomers around the world are using Slooh to explore the night sky from their homes — without needing an astronomy background, a budget for equipment, or a single clear night.

“The Slooh observations are extremely important since they provide information on both the brightness of the SN and the color shortly after discovery."

Emmanuel Conseil — Advanced Amateur Astronomer / Supernova Hunter

“Slooh has completely transformed my astronomy journey. The professional-grade telescopes, dark-sky access, and supportive community helped me grow my astronomy and astrophotography skills far beyond what I thought possible. Slooh isn't just a telescope platform, it's a community."

Shawn Hutchinson, Slooh
Member since 2016 & Slooh Ambassador since 2021

"I joined Slooh in 2017 while coordinating STEM activities in a Connecticut library makerspace. When Slooh introduced its solar telescope, I discovered a passion for observing our closest star and developed a deep interest in space weather and astronomy. Along the way, I've been inspired by Slooh's global community, whose encouragement, knowledge, and friendship have made the experience even more rewarding. I'm still on a mission to capture every object on the ever-growing Slooh Object Map, and that's part of what keeps me coming back."

Jenny McLachlan, Slooh Member since 2017

400K+

members to date

13.8M+

IMAGES CAPTURED

20K+

Minor Planet Center Submissions

Always-on Live Feeds

Real-time views from 3 continents.

RA/Dec Coordinate Control

Point the telescope anywhere.

FITS Data

Calibrated science-grade files for every mission.

Star Parties & Community

Live events with fellow members.

Join Citizen Scientists

Making a Discovery with Slooh

Emmanuel is one of the most prolific supernova observers both on and off of Slooh, and his hard work has been rewarded not only with many SN confirmation images, but also his own supernova discovery (2014- 03-02).

Read the full case study

SLOOH ADVANCED

The Whole Sky, On Your Coordinate

RA/Dec control, every catalog and processing preset, FITS data, and spectroscopy — research-grade capability without the research-grade overhead.

Advanced

Monthly

$19.95

/month

Try for a Month

Best Value

Advanced

Yearly

$199

/year

Cancel anytime; your work is always yours.

Step up to Slooh Pro

Running extended campaigns or want 5 Advanced Missions at once?

Get Pro for $499 a year