Aurora Wristlettes

"The north! the north! from out the north.  What founts of light are breaking forth,  And streaming up these evening skies,  A glorious wonder to our eyes!" Hannah Flagg Gould

BuDhaGirl pays tribute to the Aurora Borealis by creating Aurora Wristlettes. Nine elastic crystal cup chain wristlettes are arranged in two exuberant  color combinations; Aurora Green: lime, clear iris & fawn celebrate the newness of day; whilst Aurora Viola: violet, red iris & fuchsia celebrate the close of day and the celebration of night. Aurora Wristlettes are finished with three tiny silk tassels complimenting each of the colorations.

Aurora Wristlettes are part of BuDhaGirl RED. Hand finished in the US by really nice people with very small hands. One size fits most / 6" wristlettes.

Auroras frequently appear either as a diffuse glow or as "curtains" that extend approximately in the east-west direction in the Northern sky.. At times, they form "quiet arcs"; at others they evolve and change constantly. These are called "active aurora".

The most distinctive and brightest are the curtain-like auroral arcs. Each curtain consists of many parallel rays, each lined up with the local direction of the magnetic field, consistent with auroras being shaped by Earth's magnetic field.  Arcs can fragment or ‘break-up’ into separate, at times rapidly changing, often rayed features that may fill the whole sky. These are the ‘discrete’ auroras, which are at times bright enough to read a newspaper by at night, and can display rapid sub-second variations in intensity. The ‘diffuse’ aurora, on the other hand, is a relatively featureless glow sometimes close to the limit of visibility. It can be distinguished from moonlit clouds by the fact that stars can be seen undiminished through the glow. Diffuse auroras are often composed of patches whose brightness exhibits regular or near-regular pulsations. The pulsation period can be typically many seconds, so is not always obvious. Often there black aurora i.e. narrow regions in diffuse aurora with reduced luminosity. A typical auroral display consists of these forms appearing in the above order throughout the night.

 

Red: At the highest altitudes, excited atomic oxygen emits at 630.0 nm (red); low concentration of atoms and lower sensitivity of eyes at this wavelength make this color visible only under more intense solar activity. The low amount of oxygen atoms and their gradually diminishing concentration is responsible for the faint appearance of the top parts of the "curtains". Scarlet, crimson, and carmine are the most often-seen hues of red for the auroras.

Green: At lower altitudes the more frequent collisions suppress the 630.0 nm (red) mode: rather the 557.7 nm emission (green) dominates. Fairly high concentration of atomic oxygen and higher eye sensitivity in green make green auroras the most common. The excited molecular nitrogen (atomic nitrogen being rare due to high stability of the N2 molecule) plays a role here, as it can transfer energy by collision to an oxygen atom, which then radiates it away at the green wavelength. (Red and green can also mix together to produce pink or yellow hues.) The rapid decrease of concentration of atomic oxygen below about 100 km is responsible for the abrupt-looking end of the lower edges of the curtains. Both the 557.7 and 630.0 nm wavelengths correspond to forbidden transitions of atomic oxygen, slow mechanism that is responsible for the graduality (0.7 s and 107 s respectively) of flaring and fading.

Blue: At yet lower altitudes, atomic oxygen is uncommon, and molecular nitrogen and ionized molecular nitrogen takes over in producing visible light emission; radiating at a large number of wavelengths in both red and blue parts of the spectrum, with 428 nm (blue) being dominant. Blue and purple emissions, typically at the lower edges of the "curtains", show up at the highest levels of solar activity. The molecular nitrogen transitions are much faster than the atomic oxygen ones.

Ultraviolet: Ultraviolet light from auroras (within the optical window but not visible to virtually all humans) has been observed with the requisite equipment. Ultraviolet auroras have also been seen on Mars, Jupiter and Saturn.

Infrared: Infrared light, in wavelengths that are within the optical window, is also part of many auroras.

Yellow and pink are a mix of red and green or blue. Other shades of red as well as orange may be seen on rare occasions; yellow-green is moderately common. As red, green, and blue are the primary colors of additive synthesis of colors, in theory practically any color might be possible but the ones mentioned in this article comprise a virtually exhaustive list.

Mindful Glamour Ritual: Pause. Breathe. Glide each of your Aurora Wristlettes onto your wrist and set your daily intentions. Realize that although each intention is separate, it still forms part of your whole. Then…Go. Be it.

Thought: "The phantom-host has faded quite,  Splendor and Terror gone--  Portent or promise--and gives way  To pale, meek Dawn."                        Herman Melville “Aurora Borealis”

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Aurora Wristlettes

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