Johannes Hevelius drew the heavens as almost no one else dared — not as we see them from Earth, but as if viewed from outside the celestial sphere, looking back, so his constellations appear mirror-reversed, like a god's-eye view. He invented several constellations that endure to this day, among them the Shield, the Lynx, and the Hunting Dogs. A brilliant, willful masterpiece from the last great astronomer to map the stars by naked eye alone, before the telescope changed everything.

Maker: Johannes Hevelius
Date: 1687
Medium of the original: Plate
Original held by: Published Danzig · Linda Hall Library
Credit: Published Danzig · Linda Hall Library
Rights: Public domain, verified
Catalogue number: PA-00952

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
10 x 8 in	377	Excellent	Trimmed 1.7%
14 x 11 in	274	Excellent	Trimmed 0.1%
16 x 12 in	240	Excellent	Trimmed 4.6%
20 x 16 in	188	Good	Trimmed 1.7%
24 x 18 in	160	Good	Trimmed 4.6%

Sizes withheld
Size	Why
12 x 8 in	Wrong shape: a 15% crop
18 x 12 in	Wrong shape: a 15% crop
24 x 16 in	Wrong shape: a 15% crop
30 x 20 in	Wrong shape: a 15% crop
30 x 24 in	125 dpi; a historical scan is never enlarged
36 x 24 in	Wrong shape: a 15% crop
40 x 30 in	96 dpi; a historical scan is never enlarged
48 x 36 in	80 dpi; a historical scan is never enlarged
60 x 40 in	Wrong shape: a 15% crop