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Frequently Asked Questions - Customized Star Map

Is the star map accurate?

Yes.

Based on the date, (approximate) time and place you have provided to us, we are able to accurately recreate a star map which was visible under dark skies at that particular moment in space and time.

The star maps render stars all the way down to "magnitude six", which is a cosmological term meaning: visible stars, under dark skies.

For the creation of your custom star map, we rely on publicly available scientific data. More in particular, your star map is baded on the star catalogue from the European Space Agency's Hipparcos mission. This is a high precision catalogue of stars generated from over three year's of observations by the Hipparcos space-based telescope.

Want to learn more about the Hipparcos mission? Visit the following wesitehttps://www.cosmos.esa.int/web/hipparcos/home

Alternatively, you can verify your star map with a free desktop application called 'Stellarium', which you can download here.

What are grid lines?

Suppose we take a globe and blow it so that it extends in all directions across the sky. Then the imaginary lines imprinted on that globe will extend in all directions and form a grid across the sky. This grid lines then becomes the coordinates which are used to identify the location of a celestial object.

For more information about astronomical grid lines, read the following article

What are constellation lines?

A constellation is pattern of stars in the sky which appears to be so distinctive that it is easily identifiable and remembered. That word is "asterism". In ancient times, people saw asterisms and made up all kinds of stories about mythological creatures and characters which they associated with the star patterns. As astronomers subsequently began to make maps of the stars, the named asterisms were included in the maps and called constellations.

In star maps it is common to mark line “patterns” that represent the shapes that give the name to the constellations.

For more information about constellations, read the following article.

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