Nd:YAGlaserbefore and after

The constellation encompasses several faint galaxies, including the Draco Dwarf Galaxy, one of the least luminous galaxies with a diameter of about 3,500 light years.

The neodymium-doped yttrium aluminum garnet laser, or Nd:YAG laser for short, is a type of Solid-state lasers, which uses neodymium ions in a crystal of yttrium aluminum garnet (YAG) as the active medium. These lasers are known for their versatility and effectiveness in a range of applications including medical treatments, industrial applications and scientific research. In medical and cosmetic dermatology, the Nd:YAG laser is widely used for hair removal, skin rejuvenation, treatment of vascular lesions, pigment disorders and tattoos.

Nd:YAGlaserfor pigmentation

The name Draco has been linked to several dragons in Greek mythology. One version is that Cadmus slayed the dragon Draco in his quest to find his sister, Europa, who had been taken to Crete by Zeus. In another account, the Athenian goddess Minerva took Draco by the tail and put it into the sky during the battle for Mount Olympus. Draco has also been identified in early Christianity as the serpent that tempted Eve in the Garden of Eden.

Draco is circumpolar, meaning that it never sets below the horizon and is always visible in the Northern Hemisphere, but cannot be seen in the Southern Hemisphere.

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Other stars in the constellation include Thuban (Alpha Draconis), which forms the tail. Because Earth wobbles on its axis (called precession), Thuban was the pole star around 2600 B.C. when the ancient Egyptians were building the pyramids.

In summary, the Nd:YAG laser offers an effective and versatile solution to a range of skin problems and cosmetic concerns. Thanks to its deep penetration ability and lower melanin absorption, it is a particularly valuable option for treating darker skin types and deeper dermatological conditions.

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Despite its size and designation as the eighth-largest constellation, Draco, the "dragon" constellation, is not especially prominent. The name is derived from the Latin term draconem, meaning "huge serpent," and the constellation literally snakes its way through the northern sky.

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Draco's stars are not very bright. The head of the dragon consists of four stars (Beta, Gamma, Nu and Xi Draconis) in a trapezoid and located just north of Hercules. From there, the dragon's body winds its way through the sky, ending between the Big Dipper and Little Dipper. From early to mid-October, a meteor shower known as the Draconids appears to radiate from Draco's head.

Kim Ann Zimmermann is a contributor to Space.com and sister site Live Science, writing mainly evergreen reference articles that provide background on myriad scientific topics, like the constellations, astronauts, climate, culture and medicine. Her work can also be found at Business News Daily and KM World. She holds a bachelor’s degree in communications from Glassboro State College.