A great dragon winding between the two Bears, coiled around the very pole of the heavens — the monster Ladon, who guarded the golden apples of the Hesperides until Hercules slew him. Thousands of years ago its star Thuban, not Polaris, was the North Star the Egyptians steered their pyramids by. A serpent draped across the roof of the turning sky.

Maker: after Bayer / Hevelius / Flamsteed
Date: engraved 16th–18th c.
Medium of the original: Plate
Original held by: The great celestial atlases · Linda Hall Library
Credit: The great celestial atlases · Linda Hall Library
Rights: Public domain, verified
Catalogue number: PA-00971

As chosen: 24 x 18 in, art print, classic frame
Picture	24 x 18 in
Outside size	25.6 x 19.6 in
Depth	0.9 in (22 mm)
Weight	[[REAL PROOF NEEDED: shipped weight per size and frame]]
Hanging	[[REAL PROOF NEEDED: hanging hardware Prodigi fits to this frame]]
Material	Enhanced matte art paper, 200 gsm; acrylic glazing
Made in	Charlotte, North Carolina, by Prodigi

Before a size goes on sale, the file is measured against it: pixels per inch at that size, how much of the picture a crop would lose, tone and sharpness. A size that fails is not offered, so there is nothing to choose wrong.

How the print check works

Sizes offered
Size	dpi	Grade	How it fits
12 x 8 in	320	Excellent	Trimmed 7%
14 x 11 in	250	Excellent	Trimmed 8.8%
16 x 12 in	229	Excellent	Trimmed 4.4%
18 x 12 in	213	Excellent	Trimmed 7%
24 x 16 in	160	Good	Trimmed 7%
24 x 18 in	152	Good	Trimmed 4.4%

Sizes withheld
Size	Why
10 x 8 in	Wrong shape: a 10% crop
20 x 16 in	Wrong shape: a 10% crop
30 x 20 in	128 dpi; a historical scan is never enlarged
30 x 24 in	Wrong shape: a 10% crop
36 x 24 in	106 dpi; a historical scan is never enlarged
40 x 30 in	91 dpi; a historical scan is never enlarged
48 x 36 in	76 dpi; a historical scan is never enlarged
60 x 40 in	64 dpi; a historical scan is never enlarged

Scanned

2026-10-07

Master file

3,840 x 2,752 px, srgb

Tone

Darks 173, lights 223 of 255; 0% clipped light, 0% clipped dark

Colour

0% vivid

Sharpness

55.63

Notes

Narrow tonal range (18 L*): prints soft and even, as the original reads
Neutrals lean warm (yellow): the paper and varnish of the original, kept as scanned

Shipping for this piece to a US address is $25.90, the print room’s own rate, charged per piece. Checkout shows the total before you pay.

Every piece is printed after you order it, in Charlotte, North Carolina, and ships from there. For now we ship to US addresses only.

A piece that arrives damaged, misprinted or in the wrong size is replaced at our cost. The details: shipping and returns and replacements.