BANSHOREKI 萬象暦
Illustration of the Moon, planets and stars above Earth.Artist’s impression

HOSHI NO KIOKU · A MEMORY OF THE STARS

The sky on the day
you were born.

A date that belongs to you. A whole universe to explore. Turn back time and discover where the planets were on your birthday.

Free to explore · No account · Phone, tablet & desktop

Start with just a date. You can add your birth time and place inside.

About date-only previews

This first look uses noon UTC with time and place marked as unknown. It does not calculate your ascendant or houses.

Your birth date is processed in your browser, not sent in the page request.

Just curious? Explore today’s sky

THREE WAYS TO FIND YOUR WONDER

Make a little room
for the universe.

01 / YOUR BEGINNING

A sky with your date on it.

Turn the 3D birth chart with your finger. Touch a planet to learn its name and position. Try a loved one’s birthday, too.

Choose a birthday

02 / A MOMENT OF CALM

Let the stars keep time.

Give your tablet a new view: a gently moving celestial clock, the Moon and the planets. The clock displays Japan Standard Time (UTC+9).

Open the star clock

03 / BEYOND THE FAMILIAR

Follow Voyager into the unknown.

Leave Earth, meet the giant planets and cross into interstellar space. Follow both Voyager missions through their landmark moments.

Follow Voyager
A glimpse insideRecorded in the app. Drag to explore when you enter.

Before you set off

Do I need to know my birth time?

No. A date is enough for a first look. The preview uses noon UTC, so fast-moving bodies such as the Moon may differ from their position at your actual birth time. For a full birth chart, add the time, location and UTC offset in the app. Use the offset that applied on that date, including daylight saving time if applicable.

Are these real planetary positions?

Positions are calculated using Astronomy Engine and the site’s ephemeris data. Voyager paths use NASA/JPL Horizons data. Planet sizes, orbital distances and travel effects are adjusted for a readable 3D experience; this is not a view at true scale. Astrology’s interpretations are distinct from astronomical calculations.

Can I use it on my phone?

Yes. Open it in a modern browser, drag to turn the scene and pinch to zoom. The 3D experience needs JavaScript and WebGL. If 3D is unavailable, the app also offers a numerical planet table.

Do I need an account?

No account or installation is required. Your birth details are passed to the app in the part of the address after #, which is not sent in HTTP requests. Avoid sharing that complete address if you want to keep those details private.