Cassiopeia necklace | sterling silver Five bright stars in a W on the autumn-and-winter northern sky. Cassiopeia is one of the easiest constellations to find by eye, and the most common backup pointer to Polaris when the Big Dipper is too low on the horizon. Worn here as a 32 mm sterling silver pendant. The Science Behind Cassiopeia Cassiopeia is a circumpolar constellation in the northern hemisphere, always above the horizon at latitudes above roughly 34 degrees north. Its five main stars form a distinctive W or M shape depending on the time of year, making it one of the easiest constellations to identify on first sight. The constellation sits in the plane of the Milky Way, giving it a rich background of star clusters and nebulae. Cassiopeia A, a supernova remnant about 11,000 light years away, is the strongest radio source in the sky outside the solar system. The supernova that created it occurred around 1680, though no confirmed naked-eye observation of the explosion was recorded. It is now a key target for X-ray and radio astronomy. A Quiet Symbol For astronomers, radio astronomers, and astrophysicists amateur stargazers who use Cassiopeia to find Polaris educators teaching naked-eye astronomy anyone who has spent a winter night learning the northern sky from the W down Often paired with the Cassiopeia studs as a matched set, or with the gold counterpart for someone who has both a daily-wear and a milestone piece. Explore Related Math and Physics Jewelry Cassiopeia necklace | gold vermeil Cassiopeia studs | silver Ursa Major necklace | silver Ursa Minor necklace | silver Orion necklace | silver FAQ Why Cassiopeia rather than the Big Dipper? The Big Dipper sits low in the northern sky during winter and can drop below the horizon. Cassiopeia is on the opposite side of Polaris and rises high in winter exactly when the Dipper is lowest. Together the two constellations cover all four seasons as Polaris pointers, but Cassiopeia takes over the work in autumn and winter. The W is also a more compact shape, easier to spot in the seven-star sky most amateur astronomers learn first. What is Cassiopeia A and why does it matter? Cassiopeia A is the expanding remnant of a supernova that exploded in our galaxy about 340 years ago, roughly 11,000 light years away. It is the strongest radio source in the sky outside the solar system, which makes it one of the most heavily studied objects in radio and X-ray astronomy. The supernova itself was never confirmed by naked-eye observation, despite its proximity, possibly because of intervening dust. The remnant has been studied with every major X-ray telescope since the 1960s. What size is the pendant and what is the return policy? 925 sterling silver, 32 mm pendant on a 45 cm sterling silver chain with a 5 cm extender. Nickel-free and hypoallergenic. Free worldwide DHL Express in 1-5 business days, with all import duties and taxes covered. 30-day “Love It or Return It” returns. Is there a gold version or matching studs? Both. The same 32 mm Cassiopeia pendant is available in 18K gold vermeil at the same chain length. Matching Cassiopeia studs also exist in sterling silver. Buyers building a constellation set sometimes pick up the necklace, the studs, and the Ursa Major and Ursa Minor pendants together.
