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Introducing AstroGuide:Explore

Create, edit, view, and share portable AstroPlan observing schedules in a browser with catalog, framing, forecast, site, and sky context.

AstroGuide:Explore desktop dashboard showing a schedule, five-night forecast, sky paths, and framing preview

AstroGuide:Explore is a streamlined browser-based companion for creating observing schedules and understanding the conditions, equipment, and sky behind them. It brings essential AstroGuide planning tools to a larger desktop workspace while staying easy to open from a phone or tablet.

Open AstroGuide:Explore to start a new schedule, or keep reading for a closer look at what is available on the web.

AstroPlan planning, wherever you have a browser

At the center of Explore is AstroPlan, AstroGuide’s portable format for observing schedules. You can create a plan in the browser, open an existing .astroplan file, and refine the schedule without installing the iOS app.

That portability matters. A schedule can begin at a desktop where there is room to compare subjects and framing, move to a phone for a quick review, and travel into AstroGuide for iOS when you want the complete native planning experience.

Portable links make that same schedule easier to share from a message, post, or website. The person opening the link gets the planning context in their own browser instead of needing the same device or app setup.

More than a schedule editor

Explore keeps the supporting context close to the plan, so choosing a subject does not become a series of disconnected lookups.

  • Create, edit, and view observing schedules. Start a new AstroPlan schedule or open an existing file, then add subjects and refine the plan from desktop or mobile.

Browse AstroGuide's deep-sky catalog and add promising targets directly to the schedule, with detailed catalog information available while you decide.

AstroGuide:Explore catalog search for M101 with Pinwheel Galaxy subject details
Search the catalog and inspect a subject without leaving the plan.

Preview framing and field of view

Combine hundreds of popular telescope components to simulate how a subject will fit within the imaging frame before setting up under the stars.

AstroGuide:Explore framing preview for an Askar FMA135 and Nikon D5300
Compare equipment combinations and preview the resulting field of view.

Plan with five-night astronomical forecasts

Review hourly forecast panels for the next five nights at a selected observing location and compare the expected conditions with the subjects and times in the schedule.

AstroGuide:Explore five-night astronomical forecast for Cherry Springs State Park
Compare five nights, then inspect the hourly conditions for your selected night.

Understand local light pollution

Analyze the Bortle score, sky brightness, and surrounding light-dome context for an observing location before committing to a target or a night.

AstroGuide:Explore site analysis with an imported horizon, sky brightness grid, and local light-dome map
See how obstructions, sky brightness, and nearby light domes shape a site.
  • Bring AstroSites to the web. Import .astrosite files from AstroGuide, including saved obstructions and panoramic horizon images, so Explore can represent the places where you actually observe.

  • Follow subjects across the night sky. Visualize scheduled subject paths in local sky and Alt-Az views to understand how their positions change through the night and relate to the local horizon.

  • Inspect the complete plan. Move among schedule, subject, catalog, site, forecast, and framing details without leaving the planning experience.

  • Share schedules with a portable link. Create a link that others can open in their browser, making an AstroPlan easier to pass along.

  • Plan from desktop or mobile. Use a larger workspace at a computer or reach the same core planning tools from a phone or tablet.

Portable planning

AstroGuide:Explore is built around the same portable planning ecosystem as AstroGuide for iOS. AstroPlan schedules can move between the web and the app, and AstroSite files can bring saved observing locations, obstruction horizons, and optional panorama context into the browser.

AstroSite files can include precise observing-location data and optional horizon imagery. Only import or share AstroSite files from sources you trust, and use rounded coordinates when you do not want to reveal an exact private observing location.

A web companion to the complete AstroGuide experience

Explore is designed for fast, accessible planning, schedule review, and portable links. AstroGuide for iOS goes further with the complete native workflow: deeper field planning, device-aware recommendations, longer forecasts, session analysis, goals, and learning tools.

FeatureAstroGuide:ExploreAstroGuide for iOS
AvailabilityDesktop and mobile web browsersNative iPhone and iPad app
AstroPlan schedulesCreate, edit, open, and shareFull native schedule workflow
Subject catalogSearch 7,000+ catalog subjectsSearch 7,000+ catalog subjects
Framing and field of viewBrowser-based equipment and framing simulationCapture Studio adds multiple panels, scale and rotation, and narrowband palettes
EquipmentChoose from hundreds of popular smart telescopes and components for framingCreate kits and rigs, and use Telescope Workshop to simulate thousands of equipment combinations
Astronomical forecastsHourly forecasts for the next five nightsHourly and nightly forecasts for 15 nights, with additional detail and interpretation
Light-pollution analysisBortle and light-pollution context for selected sitesIntegrated site and observing-condition tools, including Light Dome Explorer
AstroSite supportImport sites, obstructions, and panoramasCreate and manage multiple sites, capture panoramas, and import or export AstroSite files
Night-sky visualizationScheduled subject paths and local Alt-Az viewsExpanded native sky and schedule views with high-resolution broadband and narrowband SkySphere textures
Schedule sharingShare plans through portable linksShare through Explore, export AstroPlan files, and use ASIAIR plan import or export through the clipboard
Dark SitesSearch more than 100 internationally recognized Dark Sky SitesSearch dark sites and find nearby sites optimized for each catalog subject
Advanced nightly planningObservation windows and recommendations tailored to equipment and conditions
Contextual tipsLive schedule analysis for filter mismatches, dew risks, lunar interference, timing conflicts, and opportunities
Longer-term planningTrack goals and objectives
Solar System supportSearch and explore planets and solar-system targets
Galactic SeasonsUnderstand how our view of the Milky Way changes through the year
Lunar impact analysisEvaluate lunar interference for each subject
Radar cloud imageryReview nearby cloud radar from the past four hours
Smart-telescope session analysisConnect a Seestar or DWARFLAB telescope by USB to scan, log, and evaluate sessions
Best suited forFast, accessible planning, schedule review, and portable linksThe most complete AstroGuide experience, with deeper planning and device-aware recommendations

Start exploring

AstroGuide:Explore is available now in a desktop or mobile browser. Build a schedule from the catalog, open an AstroPlan you already have, or create a portable link for the plan you want to share.

Open AstroGuide:Explore

Keep reading

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Guide May 28, 2026 6 min read

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