Learn. Plan. Explore.

Guides for the sky, light and weather.

Practical explanations and planning checklists for stargazing, sunrise and sunset outings, and outdoor photography.

Stargazing & Astronomy

Editorial illustration of a starry sky above dark mountain ridges with distant town lights near the horizon.

How to Find Dark Skies Near You

Find a practical stargazing location by comparing light pollution, Moon timing, clouds, access and your view of the horizon.

Read How to Find Dark Skies Near You →

Diagram of Bortle classes 1 through 9, progressing from darker to brighter skies; map values are estimates.

Bortle Scale Explained: Classes 1 Through 9

Understand the nine Bortle sky classes, what map estimates mean and why Moonlight, weather and local glare still matter.

Read Bortle Scale Explained: Classes 1 Through 9 →

NASA astronaut photograph of green southern aurora following Earth’s curved horizon, seen from the International Space Station.

How to See the Northern Lights

Plan an aurora outing using NOAA forecasts, dark skies, cloud conditions and a clear northern horizon without treating predictions as guarantees.

Read How to See the Northern Lights →

Editorial illustration of the Milky Way above mountains and a lake at night.

Best Conditions for Milky Way Photography

Plan Milky Way photography around dark skies, Moon timing, astronomical darkness, cloud cover and the direction of your composition.

Read Best Conditions for Milky Way Photography →

Diagram showing civil twilight from zero to six degrees below the horizon, nautical from six to twelve, astronomical from twelve to eighteen, and darkness below eighteen.

What Is Astronomical Darkness?

Learn how astronomical darkness differs from sunset and twilight, and how to use local darkness times for a realistic stargazing plan.

Read What Is Astronomical Darkness? →

NASA Moon-phases reference image showing the illuminated full Moon against black space.

How Moonlight Affects Stargazing

Plan stargazing around Moon phase, moonrise and moonset. Find a useful moonless window without assuming every bright-Moon night is wasted.

Read How Moonlight Affects Stargazing →

Kp explainer showing a zero-to-nine scale, three-hour reporting intervals and global geomagnetic activity, with separate checks needed for local visibility.

Kp Index Explained: What It Means for Aurora Viewing

Understand the Kp index, observed versus forecast values and why geomagnetic activity alone cannot guarantee northern lights at your location.

Read Kp Index Explained: What It Means for Aurora Viewing →

Light Pollution Map Android screenshot showing its light pollution map and dark-sky location view.

Best Stargazing Apps: Dark Skies, Star Maps and Aurora Planning

Compare stargazing and astronomy apps for dark sky maps, star identification, aurora forecasts and telescope planning, including Light Pollution Map.

Read Best Stargazing Apps: Dark Skies, Star Maps and Aurora Planning →

Meteor streak above a grassy hillside beneath a starry night sky.

How to Watch a Meteor Shower: A Practical Night Plan

Plan a meteor-shower outing with dark skies, Moon timing, a wide view and realistic expectations. Use Light Pollution Map to prepare your observing window.

Read How to Watch a Meteor Shower: A Practical Night Plan →

Telescope overlooking a ridge beneath a hazy starry sky.

Seeing vs. Transparency: Why a Clear Sky Can Look Blurry

Learn the difference between astronomical seeing, transparency and darkness, then choose a sensible observing target for the conditions.

Read Seeing vs. Transparency: Why a Clear Sky Can Look Blurry →

Conceptual ISS viewing diagram labeling the horizon at zero degrees and overhead at ninety degrees.

How to See the ISS: Plan a Visible Space Station Pass

Learn how to read ISS sighting times, directions and elevation, choose an open viewpoint and use Light Pollution Map’s ISS tools.

Read How to See the ISS: Plan a Visible Space Station Pass →

Stargazer using a dim red flashlight beside a telescope in a dark clearing.

How to Protect Your Night Vision While Stargazing

Prepare screens, lighting and your observing spot so bright lights do not interrupt a stargazing session. Plan the site with Light Pollution Map.

Read How to Protect Your Night Vision While Stargazing →

Tripod-mounted telephoto camera facing a crescent Moon above a treeline.

Moon Photography Planning: Phase, Direction and Exposure

Plan a Moon photograph by choosing lunar phase, foreground, direction and an exposure approach. Use Light Pollution Map’s Moon tools before the outing.

Read Moon Photography Planning: Phase, Direction and Exposure →

Sunsets & Sunrises

Editorial illustration of orange and pink sunset clouds reflected in a quiet lake.

How to Predict a Beautiful Sunset

Build a practical sunset prediction routine by checking clouds, the western horizon, forecast changes and a backup photography plan.

Read How to Predict a Beautiful Sunset →

Sunset planning diagram pairing cloud structure with an open horizon; a quality forecast should be checked against local conditions.

Best Weather Conditions for Colorful Sunsets

Learn why cloud position, thickness and openings near the horizon matter when evaluating the potential for a colorful sunset.

Read Best Weather Conditions for Colorful Sunsets →

Diagram showing the evening sequence of golden hour, sunset, blue hour and night; timing varies with location and season.

Golden Hour vs. Blue Hour

Compare golden hour and blue hour for photography, understand why their duration varies and plan useful shooting windows around sunrise and sunset.

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Illustrative comparison between a promising sunset forecast and a blocked horizon at the location, with a reminder to keep a backup plan.

Why Sunset Forecasts Sometimes Miss

Understand why a promising sunset forecast can miss, what a quality score means and how to make better plans without expecting a guarantee.

Read Why Sunset Forecasts Sometimes Miss →

Editorial illustration of a tripod-mounted camera overlooking a coast before sunrise.

How to Plan a Sunrise Photography Session

Plan sunrise photography with a clear horizon, the right arrival time, a local forecast and a backup composition for changing morning light.

Read How to Plan a Sunrise Photography Session →

SkyCandy Android screenshot showing its sunrise and sunset quality forecast.

Best Sunset Forecast and Predictor Apps: SkyCandy and Alternatives

Compare sunset forecast and sunrise predictor apps: SkyCandy, Alpenglow, SunsetWx and PhotoPills, with useful features, honest tradeoffs and real screenshots.

Read Best Sunset Forecast and Predictor Apps: SkyCandy and Alternatives →

Low sunrise above coastal dunes and a winding footpath.

Sunrise and Sunset Direction: Plan a Photo Across the Seasons

Understand why sunrise and sunset direction change through the year, then use SkyCandy’s sun-position tools to plan a location and date.

Read Sunrise and Sunset Direction: Plan a Photo Across the Seasons →

Lone tree silhouetted against an orange sunset sky.

Sunset Silhouette Photography: Plan Shape, Light and Exposure

Make cleaner sunrise and sunset silhouettes by planning a bright background, clear subject outline and exposure. Use SkyCandy to choose the light and direction.

Read Sunset Silhouette Photography: Plan Shape, Light and Exposure →

Sunset clouds reflected in tidal pools between coastal rocks.

Sunset Reflection Photography: Plan the Sky and the Water

Plan sunrise and sunset reflections with a useful viewpoint, light direction and an exposure approach. Combine SkyCandy’s forecast with the actual water conditions.

Read Sunset Reflection Photography: Plan the Sky and the Water →

Conceptual diagram with the Sun behind an observer who faces illuminated water droplets.

Rainbow Photography: Plan Sun Direction and Passing Rain

Learn where to look for a rainbow, how low sunlight helps the composition and how SkyCandy’s Sun direction tools support a practical photo plan.

Read Rainbow Photography: Plan Sun Direction and Passing Rain →

Camera on a tripod overlooking a mountain valley at twilight.

Sunrise and Sunset Time-Lapse Planning: Timing and Intervals

Plan a sunrise or sunset time-lapse with enough capture time, a practical frame interval and changing-light checks. Use SkyCandy to organize the outing.

Read Sunrise and Sunset Time-Lapse Planning: Timing and Intervals →