The Accuracy of Starrymaps Custom Star Maps

When you choose Starrymaps, you're not just choosing a beautiful representation of the night sky, you are selecting a product grounded in astronomical precision and scientific integrity. Here's what sets our star maps apart in terms of accuracy.

How accurate are Starrymaps star maps?

A Starrymaps print shows the real position of every star that was visible from the date, time and place you choose — not a decorative approximation. Star coordinates and brightness are taken from Yale's Bright Star Catalog, a standard astronomical reference. Constellation lines follow Donald Menzel's A Field Guide to the Stars and Planets, and deep sky objects such as nebulae and galaxies come from the Messier Catalog and the New General Catalogue.

Because each map is calculated from those catalogs rather than drawn by hand, it can be generated for any date and location on Earth — including dates that have not happened yet.

You don't have to take our word for it. Every map can be verified independently: open Stellarium, the free open-source planetarium software, enter the same date, time and place, and compare. The star field will match.

Precision in Every Star: The Accuracy of Starrymaps Night Sky Prints

  1. Thousands of Stars, Precisely Plotted: We meticulously map out thousands of stars, ensuring that what you see is an accurate portrayal of the night sky for any date and location you choose.
  2. Renowned Astronomical Data: Our commitment to accuracy is underpinned by the use of Yale's Bright Star Catalog. This esteemed source provides us with detailed information about the coordinates and brightness of each known star, ensuring that every point of light on your map is where it should be.
  3. Expert Constellation Mapping: For the constellation lines, our maps draw upon the expertise in Donald Menzel’s A Field Guide to the Stars and Planets. This ensures that the constellations are not just artistically represented but are also astronomically accurate.
  4. Deep Sky Objects with Precision: We include Deep Sky Objects like nebulas and galaxies, labeled with information sourced from the Messier Catalog and the New General Catalog. This addition brings a layer of depth and accuracy to your star map, showcasing the universe's grandeur beyond our galaxy.
  5. Validated by Stellarium Comparisons: Our maps undergo rigorous checks against open-source software like Stellarium, a testament to our dedication to delivering not just beauty, but accuracy.

Starrymaps prints are a confluence of art and science. They are not just decorative pieces but accurate representations of the cosmos. With every map we create, we offer you a chance to own a piece of the universe, depicted with scientific precision and elegance.

Experience the night sky with unparalleled accuracy — a perfect blend of astronomy and artistry, tailored just for you.

Overhead view of an adult and a young child lying on a wooden floor, both pointing at a dark star map poster captioned 'When Ryan was born'.

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Create high-quality posters and prints from your life's best moments

A portrait star map in a light oak frame leaning against a grey wall, captioned 'Our family is bigger, our days are brighter'.
Made from eco-friendly wood and provided ready for display
A portrait star map on stretched canvas, angled to show the wrapped edge, captioned 'When we first met'.
Stretched on a wooden frame & hand-finished
An unframed midnight blue star map poster on a textured beige wall, captioned 'When Ryan was born'.
Premium heavyweight art print with a matte finish
A star map print in a download folder, representing the digital download product
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