Print a card or choose “Save as PDF.” Mark a square only after an actual observation or sky-chart check.

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LOCAL REALITY ✳ / FREE PRINTABLE

Open-Sky Bingo

Nine real observations. Three in a row.

Use a safe, familiar place with an open view. You do not need a telescope. Use a sky chart set to your time and approximate location before naming a planet or constellation. To win: record what you actually observed or checked, then complete any row, column or diagonal. “Not sure” is better than a guess.

Find the Moon

Describe its phase or shape. If it is below the horizon, check when it rises.

Check a bright point

Use a sky chart to check whether a bright point is a planet or star. Leave it unidentified if unsure.

Count a star patch

Frame a small patch with your hand at arm’s length and count the stars you can see.

Find a star pattern

Sketch three stars that make a line or triangle, then compare the pattern with a chart.

Compare twinkling

Watch two star-like points for 30 seconds. Does one seem to twinkle more?

Find a constellation

Use a sky chart to locate a constellation that is actually above your horizon.

Spot a moving light

Watch a bright point for two minutes. Check before deciding whether it is a satellite or aircraft.

Look for star colors

Compare two bright stars. Do they seem the same color or slightly different?

Draw what you see

Sketch a small patch of sky and compare the relative positions with a chart.

LOCAL REALITY ✳ / FREE PRINTABLE

City-Sky Bingo

Work with the sky you can see.

Designed for rooftops, buildings and light-polluted skies. Stay in one safe, permitted spot; do not move toward traffic or unfamiliar areas to improve the view. To win: record what you actually observed or checked, then complete any row, column or diagonal. If clouds hide everything, save this for a clearer night.

Compare two directions

From the same spot, compare two parts of the sky. Which shows more stars?

Count visible stars

Count stars in a small patch above the rooftops. Repeat once and compare.

Find the Moon

Look between buildings or above the rooftops. Describe its shape if visible.

Check a bright point

Use a sky chart to check one bright point. Leave its identity unconfirmed if unsure.

Spot a sky pattern

Find three stars in a line or triangle and compare your sketch with a chart.

Measure light glare

Compare the sky near a bright outdoor light with a darker direction from where you are.

Watch for twinkling

Observe two star-like points for 30 seconds. Which seems steadier?

Check a constellation

Use a sky chart to find a constellation that is above your horizon.

Draw a city-sky map

Sketch the skyline and mark the Moon or stars visible above it. Add the direction you faced.