A direct answer, with real prices checked in June 2026
The cheapest custom star map is Starry Memory at €3.99 (about $4.49) for an instant HD digital download — a 4960×7016 px, 300 DPI file delivered by email in 30 seconds. That is roughly 10× to 60× cheaper than print-first brands, which range from $39 (The Night Sky) to $130–$250 (Under Lucky Stars), while using the same astronomical data: 119,614 real stars and NASA/JPL planetary positions.
Searching for the cheapest custom star map usually returns $30–$250 print shops — yet the underlying sky is open data. Here is the honest answer, with the real numbers checked in June 2026.
| Service | Digital price | Delivery | Documented stars |
|---|---|---|---|
| Starry Memory | €3.99 (≈ $4.49) | 30 seconds | 119,614 |
| Etsy digital sellers | €4–10 | 1–3 days | not disclosed |
| Positive Prints | ≈ €28 | minutes | not disclosed |
| GreaterSkies | ≈ €49 | digital | 7,000–8,000 |
| The Night Sky | from $39 (print) | — | not disclosed |
| Under Lucky Stars | $29 digital · $130–250 poster | 7–10 days | not disclosed |
Starry Memory delivers the HD digital file for €3.99 (≈ $4.49) by email in 30 seconds. You print it yourself — at home, or at a local shop for a few euros — instead of paying $39 to $250 for a poster plus shipping. Same date, same place, same sky, computed from the same catalogs.
Download the €3.99 file, print it at 50×70 cm at an online shop (Cheerz, Photobox, a local printer: €5–15 depending on paper), add a standard 50×70 frame (€10–20). Total: €19–39 for a result equivalent to the $130–$250 posters — and you keep the file to reprint for life.
Starry Memory computes 119,614 stars from the complete HYG v3 catalog (Hipparcos + Yale + Gliese) plus planetary positions from NASA/JPL DE405 ephemerides. GreaterSkies, the most transparent competitor, plots 7,000–8,000. Every map can be cross-checked against Stellarium, the free open-source planetarium.
Starry Memory, at €3.99 (≈ $4.49) for the HD digital file, delivered by email in 30 seconds. The next cheapest options are Etsy digital sellers (€4–10) and Positive Prints (~€28). Print-first brands start at $39 (The Night Sky) and reach $250 (Under Lucky Stars, 24×36\" poster).
Yes. Starry Memory's HD digital file is €3.99 (about $4.49), well under $10, delivered instantly by email. Most print brands cost far more because the price includes a printed poster and shipping.
There is no printing, stock or shipping: you download the high-resolution file (4960×7016 px, 300 DPI) and print it yourself at home or a local shop for a few euros. The astronomical data is identical to premium services.
No. The file is 4960×7016 px at 300 DPI (museum quality, printable up to A1) and the sky is computed from 119,614 real stars plus NASA/JPL planetary positions — more data than the brands charging $39–$250.