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Description
Arcturus: The brightest star in the northern celestial hemisphere. With a visual magnitude of −0.04, it is the fourth brightest star in the night sky, after Sirius, Canopus, and Alpha Centauri. It is a relatively close star at only 36.7 light-years from Earth, and, together with Vega and Sirius, one of the most luminous stars in the Sun's neighborhood. Arcturus is a type K1.5 IIIpe Red giant star—the letters "pe" stand for "peculiar emission," which indicates that the spectrum of light given off by the star is unusual and full of emission lines. This is not too uncommon in red giants, but Arcturus has a particularly strong case of the phenomenon. It is at least 110 times visually more luminous than the Sun, but this underestimates its strength as much of the "light" it gives off is in the infrared; total (bolometric) power output is about 180 times that of the Sun. The lower output in visible light is due to a lower efficacy as the star has a lower surface temperature than the Sun. It has likely exhausted its hydrogen from the core and is currently in its active hydrogen shell burning phase. It will continue to expand before entering horizontal branch stage of its life cycle.

Very unique and eye catching these earrings are made using black retaining rings, 28ga gold plated wire, 18ga teal blue wire, metallic blue and Bermuda Blue Swarovski crystals

Length: 2 inches
Gunmetal French Hooks for Pierced Ears

Purchase these earrings here: www.etsy.com/listing/496363319

See the matching pendant here: www.etsy.com/listing/496363773

.

Description
Arcturus: The brightest star in the northern celestial hemisphere. With a visual magnitude of −0.04, it is the fourth brightest star in the night sky, after Sirius, Canopus, and Alpha Centauri. It is a relatively close star at only 36.7 light-years from Earth, and, together with Vega and Sirius, one of the most luminous stars in the Sun's neighborhood. Arcturus is a type K1.5 IIIpe Red giant star—the letters "pe" stand for "peculiar emission," which indicates that the spectrum of light given off by the star is unusual and full of emission lines. This is not too uncommon in red giants, but Arcturus has a particularly strong case of the phenomenon. It is at least 110 times visually more luminous than the Sun, but this underestimates its strength as much of the "light" it gives off is in the infrared; total (bolometric) power output is about 180 times that of the Sun. The lower output in visible light is due to a lower efficacy as the star has a lower surface temperature than the Sun. It has likely exhausted its hydrogen from the core and is currently in its active hydrogen shell burning phase. It will continue to expand before entering horizontal branch stage of its life cycle.

Very unique and eye catching these earrings are made using black retaining rings, 28ga gold plated wire, 18ga teal blue wire, metallic blue and Bermuda Blue Swarovski crystals

Length: 2 inches
Gunmetal French Hooks for Pierced Ears

Purchase these earrings here: www.etsy.com/listing/496363319

See the matching pendant here: www.etsy.com/listing/496363773

.