308 grams of cotton: the paper under a zodiac print

By the Painted Zodiac studio · · updated

A plate from Johann Bayer's Uranometria of 1603, the star atlas the Painted Zodiac signs are drawn from.

Paper weight is the one print spec almost every zodiac shop publishes, and it is the easiest to check. It is written as grams per square metre, gsm: a square metre of the sheet, weighed. A heavier sheet is thicker in the hand and stiffer at the edges. It is not the whole story of a print, but it is the part a buyer can compare across shops without taking anyone's word for "premium".

So here is the comparison, from each shop's own pages, read on 23 September 2026.

What the star-map and zodiac shops publish

Shop Paper, as the shop states it Source
The Night Sky "Hahnemühle 200gsm fine art paper" (the stock is not named) thenightsky.com
Under Lucky Stars "museum-quality, thick, matte art paper of 200GSM" underluckystars.com
Positive Prints "200gsm premium matte paper with archival inks" positiveprints.com
Mapiful "FSC certified, museum graded paper", 200gsm, matte mapiful.com
Twinkle In Time "230 GSM Fine Art Paper" twinkleintime.com
Society6 (one zodiac listing) "100% cotton, acid-free, museum-quality archival paper"; no weight given society6.com

Five of the six publish a number, and four of those five say 200. That is the class of sheet the category is built on, and there is nothing wrong with it: 200gsm matte art paper is a real fine-art stock, printed well by good printers every day.

What Painted Zodiac sells, stated the same way

Painted Zodiac offers two papers, and it is worth being plain about both.

The Archival Giclée Print is a 200gsm sheet. It is Prodigi's Enhanced Matte Art, the product the checkout orders under the SKU family GLOBAL-FAP, and Prodigi's own product page gives the weight as 200gsm (prodigi.com, read 23 September 2026). That is the same class as The Night Sky, Under Lucky Stars, Positive Prints and Mapiful. Until this week the shop's own description called it "museum-grade fine-art paper", which is true of nothing a buyer can check, so it now says what it is: 200gsm Enhanced Matte Art.

The Hahnemühle Fine-Art Print is a 308gsm sheet of 100% cotton rag. It is Hahnemühle Photo Rag, ordered from Prodigi under GLOBAL-HPR, and Prodigi lists it at 308gsm and 100% cotton (prodigi.com, read 23 September 2026). Hahnemühle has made paper in Dassel, Lower Saxony, since 1584, and Photo Rag is one of its best-known fine-art sheets.

Among the shops above that publish a weight, none offers a sheet heavier than 230gsm. Society6's listing says cotton but gives no weight, so it cannot be ranked either way.

What 108 extra grams actually buy

Weight alone is a blunt number, so here is what it changes on the wall, and what it does not.

  • Thickness. A 308gsm sheet is about half as heavy again as a 200gsm one, and stiffer in the hand; it takes handling at the edges better.
  • Finish. Both sheets are matte, so neither throws back a glossy glare under a lamp. The choice between them is weight and material, not shine.
  • Material. Cotton rag is the traditional base for fine-art papers; wood-pulp art papers are the more common and less costly alternative.

And what it does not change: the painting. Both papers are printed from the same image file, at the same size, and a file too small for a large rung is enlarged at order time on either sheet. The difference is the object that holds the picture.

What it costs

This is where the heavier sheet asks for something back. At the same size, Photo Rag costs more than the 200gsm print, and the shop does not hide it:

Size Archival Giclée (200gsm) Hahnemühle Photo Rag (308gsm)
12x12 in $99 $129
16x16 in $129 $159
16x24 in $149 $189
40x60 in $749 $829

Shipping is $12 flat on any physical order. Those figures are read from the shop's catalogue when this page is built, so if a price changes, this table changes with it.

Set against the category, neither column is cheap. The Night Sky's 12x12 print is $39 with free shipping, on its own 200gsm Hahnemühle sheet (thenightsky.com, read 23 September 2026). A star-map shop and a painting shop are selling different things, and price across the two is a subject of its own. On paper alone, though, the honest summary is short: at 200gsm Painted Zodiac is in the same class as everyone else, and costs more; at 308gsm cotton it is the only one in this set, and costs more again.

What this page does not claim

No lightfastness rating is quoted here. Some shops publish a figure like "archival inks rated for 100+ years"; Painted Zodiac has not tested its prints for fade, so it quotes no number. No sheet in this comparison was weighed or tested by us: every figure above is the seller's or the printer's published spec, with its source. If any of those pages change, the table here is out of date, and a correction to support@painted.app is welcome.

Choosing between them

For a small piece, a gift, or a first print of a sign, the 200gsm Archival Giclée is a sound sheet and the lower price. For a piece meant to hang for a long time, or at the larger sizes where the sheet itself starts to show, the Photo Rag is the one the studio would pick. Both are printed to order by Prodigi, and both carry the same painting.

Every sign's page lists both papers and every size, with the price beside each: the twelve.

Written by the Painted Zodiac studio, PaintedApp, LLC. Corrections to support@painted.app.