Is this Chaucer's astrolabe?Astronomical instruments were probably made after Chaucer's designs, not before.June8, 2007 Philip Ball The British Museum's 'Chaucerian' astrolabe: not really Chaucer's, of course. British Museum Want to see the astrolabe used for astronomical calculations by Geoffrey Chaucer himself? You'll be lucky, says Catherine Eagleton, a curator at the British Museum in London. Several astrolabes have been suggested to have once belonged to Chaucer. The claims are based on the device in question's resemblance to one described by Chaucer in his Treatise on the Astrolabe, written in the late fourteenth century. Perhaps, the claimants argue, the astrolabe they...