How to Choose a Custom Star Map Company in 2026
Five things separate custom star map services: the star data source, the print materials, the formats beyond a poster, whether you can verify the map yourself, and the company's track record. Compare these before comparing prices. The step-by-step accuracy test and the sourced six-service table below show how.
Last reviewed 2026-09-26. Facts come only from each company's own website and public review profiles, listed under Sources.
What should you compare first?
- Star data source: a named star catalog, such as Hipparcos or the Yale Bright Star Catalog.
- Print materials: a stated paper weight and ink type, and any archival or color guarantee.
- Formats beyond a poster: canvas, foil, a digital file or jewelry.
- Verification: a map you can check against a free astronomy tool.
- Track record: review count, and which platform the reviews are on.
How can you check a star map is accurate?
Use a free astronomy tool. It takes about five minutes.
- Write down the moment. Note the place, date and local time exactly as they will appear on the map. If the service picks a default time, find out what it is. The Night Sky uses 10pm local time.
- Open a reference tool. Use the Sky & Telescope Interactive Sky Chart or the free Stellarium app (both linked under Sources).
- Enter the same details. Set the location, date and time. In Stellarium, check the time zone and daylight saving setting for the location.
- Match the view. Star maps show the whole sky from horizon to horizon, with the point straight overhead at the center. In Stellarium, look straight up and switch to a stereographic or fish-eye projection. The Sky & Telescope chart shows the whole sky by default.
- Check the orientation. Seen from below, the sky has North at the top, East on the left and West on the right. If your map shows East on the right, it has been mirrored. The science behind our maps explains why.
- Compare landmarks. Find two or three bright constellations or stars, one near the center and one near the edge. They should sit in the same places.
- Check the Moon, if shown. Its phase and rough position should match the reference tool.
- Test the editor. Move the time about 12 hours. The visible sky should change a lot.
How do six star map services compare?
Facts come only from each company's own website and public review profiles, checked September 25 and 26, 2026. "Not stated" means we could not find the fact on the cited pages. It does not mean the company lacks it. Each fact links to its source.
| Feature | The Night Sky | Under Lucky Stars | GreaterSkies | Positive Prints | Mapiful | Twinkle In Time |
|---|---|---|---|---|---|---|
| Star data source | ESA Hipparcos catalog[T1] | Yale Bright Star Catalog and others[U2] | Yale Bright Star Catalog and HYG database[G1] | "Hipparcos satellite catalog"[P1] | Not stated | "Data from NASA". International Astronomical Union and Pan-Andromeda Archaeological Survey[W1][W2] |
| What the map shows | Stars, constellation lines and the Moon. No planets. Constellation names are in the Constellation Legend eBook included with every order, not on the map[T1][T7] | Not stated | 7,000+ stars to magnitude 7[G1] | Not stated | Not stated | Not stated |
| Print paper and inks | 200gsm enhanced matte fine art paper, giclée printed with archival pigment inks[T1] | 200 GSM fine art paper, 300 DPI[U2] | "Top-quality photographic paper", "UV-resistant inks"[G4] | 200gsm matte paper, archival inks[P1] | 200gsm FSC-certified paper, "eco-friendly inks"[M1] | 230gsm archival matte paper[W3] |
| Archival claim | Archival pigment inks backed by a 100+ year color guarantee[T1] | Not stated | "Archival-quality" inks that "will not fade over time"[G4] | "Archival inks" (no duration)[P1] | Not stated | Not stated |
| Formats | Print, foil, glow-in-the-dark, canvas, framed, jewelry, digital download[T1] | Print, framed, photo design[U1][U8] | Print, framed, digital download, e-card[G1][G4] | Poster, framed, canvas, aluminum, foil, digital, jewelry[P1] | Poster, canvas, frames[M1] | Print, framed[W1][W3] |
| Jewelry | Yes, five collections[T1] | Not stated | Not stated | Yes, listed as a format[P1] | Not stated | Not stated |
| Sizes (US) | Six sizes, 12x12" to 24x32"[T3] | 12x16", 18x24", 24x36"[U4] | Five sizes, 12x16" to 24x36"[G4] | 8x12" to 24x36", plus metric sizes[P1] | 11x17", 18x24", 24x36"[M1] | Three sizes, dimensions not stated[W3] |
| Returns | If you're not happy with your order, you can return it[T2] | Damaged or not as advertised, within 30 days[U5] | "Full refund if you are not satisfied, no questions asked"[G4] | Damaged, wrong or not as advertised, within 30 days[P4] | Not stated | Damaged or wrong order, within 30 days of delivery[W3] |
| Reviews | Trustpilot: 4.6, over 10,000 reviews on the public profile[TP1] | Trustpilot: 4.6, 675 reviews on the public profile[TP2] | Trustpilot and REVIEWS.io widgets, score not shown[G1] | 4.80/5 from 3,144 on-site reviews[P5] | "2000+ 5-star reviews", Trustpilot widget[M1] | REVIEWS.io widget, score not shown[W1] |
| Patents | Two granted US patents and European patent EP 3881264[T1] | Not stated | Not stated | Not stated | Not stated | Not stated |
Etsy sellers. Hundreds of independent sellers list star maps on Etsy. Data source, paper, sizes and return policy vary by seller, so check each listing. Etsy's Purchase Protection gives a full refund on qualifying orders that arrive damaged, are not delivered, are not as described, or arrive 7 or more days late. Etsy covers up to $250 of that refund.
For a closer look at two of these services, read The Night Sky vs Under Lucky Stars. To design a map, see custom star maps from The Night Sky.
What should you ask before you buy?
- Which star catalog does the company name, and does it explain how date, time and place change the map?
- What time does the map show if you do not enter one, and does it adjust for time zone and daylight saving?
- Can you see a full preview before you pay, and can you check that preview against Stellarium or Sky & Telescope?
- Are East and West drawn as seen looking up (East on the left), or mirrored like a land map?
- What does the map show: stars only, constellation lines, constellation names, the Moon, planets? Is anything extra, such as a key to the constellations, included?
- What paper weight and ink are used, and is there a stated archival or color guarantee?
- Is the price for a digital file, an unframed print, a framed print or jewelry? What is the total after shipping and tax to your country?
- What does the return policy cover: only damage and printing errors, or also orders you are unhappy with?
- How many reviews does the company have, on which platform, and how recent are they?
Frequently asked questions
Which custom star map company is the most accurate?
Any service that calculates the sky from a named star catalog and handles time zones correctly can produce an accurate map. The Night Sky uses the European Space Agency's Hipparcos catalog. Under Lucky Stars uses the Yale Bright Star Catalog. GreaterSkies uses the Yale catalog and the HYG database. Positive Prints says it uses Hipparcos data. Company claims are a starting point. The reliable test is to enter the same place, date and time in Stellarium or the Sky & Telescope chart and compare the bright constellations.
Does a higher star count mean a more accurate map?
No. A star count tells you how many dots are drawn, not whether they are in the right place. Accuracy depends on the catalog, the exact time and time zone, the observer's location and how the sky is projected onto a flat circle. The eye can see stars to about magnitude six under dark skies. The Night Sky renders stars to that limit, and GreaterSkies draws fainter stars to magnitude seven. Both approaches can be accurate. The choice between them is mostly about how the map looks.
Which star map companies also make jewelry?
Of the six services compared here, two list jewelry on their websites. The Night Sky has five collections: Star Map, Zodiac, Handwriting (Love Notes), Paw Prints and Moon Phase, in recycled sterling silver, recycled 18k gold vermeil and 9k solid gold, with prices from $79. Positive Prints lists jewelry as one of the formats for its custom star map. Under Lucky Stars, GreaterSkies, Mapiful and Twinkle In Time do not list jewelry on the pages we checked. If you want a matching print and pendant, check that both use the same date, time and place.
Should I buy a star map from an Etsy seller?
You can, but check each seller separately, because standards vary from shop to shop. Before ordering, ask the seller which star catalog they use, what time the map shows, which paper they print on, and whether they send a proof you can check in Stellarium before printing. Etsy's Purchase Protection gives a full refund on qualifying orders that arrive damaged, are not as described, are not delivered, or arrive 7 or more days late, and Etsy covers up to $250. It does not cover an item that matches its description but that you simply do not like.
How much should a custom star map cost?
Starting prices for an unframed print on the companies' own sites range from about $39 to $55 in the US, or about €49 to €99 in Europe, and some companies sell cheaper digital files. Framing, larger sizes, foil, canvas and jewelry cost more. The Night Sky's jewelry starts at $79. Starting prices are not like for like, so choose the same size and format on each site and compare the total after shipping and tax to your country on the same day.
Sources
All pages accessed September 25 and 26, 2026. Prices, review counts and policies change often.
The Night Sky
- [T1]The Night Sky, llms.txt (company facts, formats, paper and inks, eBook): https://www.thenightsky.com/llms.txt
- [T2]The Night Sky Help Centre, returns and refunds: https://help.thenightsky.com/en/articles/14704655-can-i-return-my-order-and-how-do-refunds-work
- [T3]The Night Sky Help Centre, print dimensions: https://help.thenightsky.com/en/articles/9507648-what-are-the-print-dimensions
- [T6]The Night Sky Help Centre, are our star maps accurate: https://help.thenightsky.com/en/articles/9507705-are-the-night-sky-star-maps-accurate
- [T7]The Night Sky Help Centre, star map options: https://help.thenightsky.com/en/articles/10219458-star-map-options
- [T8]The Night Sky, the science behind our maps: https://www.thenightsky.com/the-science-behind-our-maps
- [T10]The Night Sky, classic star map print (price): https://www.thenightsky.com/shop/night-sky-classic-star-map-print
- [TP1]Trustpilot, The Night Sky public profile: https://www.trustpilot.com/review/thenightsky.com
Under Lucky Stars
- [U1]Under Lucky Stars, homepage: https://www.underluckystars.com/en/
- [U2]Under Lucky Stars, how it works: https://www.underluckystars.com/en/how-it-works
- [U4]Under Lucky Stars, FAQ (sizes, shipping): https://www.underluckystars.com/en/faq
- [U5]Under Lucky Stars, return policy: https://www.underluckystars.com/en/return-policy
- [U8]Under Lucky Stars, 24x36 product page (EUR prices, photo option): https://www.underluckystars.com/en/product/24x36/blackwhite
- [TP2]Trustpilot, Under Lucky Stars public profile: https://www.trustpilot.com/review/underluckystars.com
GreaterSkies
- [G1]GreaterSkies, homepage: https://greaterskies.com/
- [G3]GreaterSkies, FAQ: https://greaterskies.com/faq/
- [G4]GreaterSkies, custom star map: https://greaterskies.com/custom-star-map
Positive Prints
- [P1]Positive Prints, custom star map: https://positiveprints.com/product/custom-star-map/
- [P4]Positive Prints, return policy: https://positiveprints.com/return-policy/
- [P5]Positive Prints, reviews: https://positiveprints.com/reviews/
Mapiful
- [M1]Mapiful, star map: https://www.mapiful.com/us/star-mapiful/
Twinkle In Time
- [W1]Twinkle In Time, homepage: https://twinkleintime.com/
- [W2]Twinkle In Time, about: https://twinkleintime.com/about/
- [W3]Twinkle In Time, FAQ: https://twinkleintime.com/faq/
- [W4]Twinkle In Time, star maps: https://twinkleintime.com/products/star-maps/
Etsy
- [E1]Etsy Help Centre, Etsy's Purchase Protection program: https://help.etsy.com/hc/en-us/articles/7471925990807-Etsy-s-Purchase-Protection-Program
- [E2]Etsy, Purchase Protection: https://www.etsy.com/etsy-purchase-protection
Verification tools and third parties
- [X1]Sky & Telescope, Interactive Sky Chart: https://skyandtelescope.com/interactive-sky-chart/
- [X2]Stellarium, free planetarium software: https://stellarium.org
- [X3]European Space Agency, Hipparcos mission: https://www.cosmos.esa.int/web/hipparcos/home
- [O1]OwnStarMap, 9 custom star map sites compared (updated July 21, 2026): https://ownstarmap.fr/en/blog/best-star-map-websites-compared