| Issuer | Canada |
| Year | 2018 |
| Type | Non-circulating coins |
| Value | 20 Dollars |
| Currency | Dollar (1858-date) |
| Composition | Silver (.9999) |
| Weight | 31.39 g |
| Dimensions | 38 mm |
| Thickness | |
| Shape and Technique | Round Milled, Coloured |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | Susan Taylor |
| In circulation to | |
| Reference(s) | RCM/MRC#167044, KM#2673 |
| Obverse description | Head of Queen Elizabeth II, as at 77 years of age, bare headed, wearing necklace and earrings, facing right. |
| Obverse script | Latin |
| Obverse lettering | ELIZABETH II D·G·REGINA (Translation: Elizabeth II queen by the grace of God) |
| Reverse description | Designed by Alexandra Lefort, your coin is a re-interpretation of The Royal Astronomical Society of Canada’s sesquicentennial logo in a scientifically accurate, photorealism art style. The original logo features stars that allude to Canadian contributions to stellar spectroscopy and photometry, and a globular cluster that honours the scientific work of Helen Sawyer Hogg and Canada’s cooperative partnerships; both are colourfully re-imagined here as the Eagle Nebula—specifically the pillars of interstellar gas and dust known as the Pillars of Creation, wherethe formation of new stars is a symbolic representation of the RASC’s beginnings (and by extension, its anniversary). |
| Reverse script | Latin |
| Reverse lettering | CANADA 1868-2018 20 DOLLARS AL |
| Edge | Serrated |
| Mint | |
| Mintage | 2018 - Proof; Coloured with Meteorite - 5 500 |
| Catalog ID | 6142654810 |
| Comments |
