IC 418 spans 0.3 light-years across. IC 418 IC 418, also known as Spirograph Nebula, is a planetary nebula in the Milky Way Galaxy. The name derives from the intricate pattern of the nebula, which resembles a pattern which can be created using the Spirograph, a toy that produces geometric patterns (specifically, hypotrochoids and epitrochoids) on paper. Only a few million years ago, IC 418 was probably a common red giant star. Since running out of nuclear fuel, though, the outer envelope has begun expanding outward leaving a hot remnant core destined to become a white dwarf star. IC 418 lies about
Maurice Denys (sheriff) Agnes Danvers, in the 4th. Q. The arms of Denys are: "Gules, three leopard's faces or jessant-de-lys azure, over all a bend engrailed of the last". The Denys arms blazoned with these tinctures survive earliest in British Library Add.MS 45131, f. 54, a 1509 drawing of Hugh Denys (d. 1511) at the deathbed of Henry VII. The armourials are the arms of Cantilupe of Candleston Castle, Glamorgan, probably granted as "arms of patronage" to their feudal officials or tenants the Denys's, differenced by the imposition of a bend engrailled, probably before 1258. Cantilupe arms, reversed for difference, are still borne