• Pixel-art Nightglowe, the Airglow Sleepwalker, on a black mug with the slogan "EVEN THE DARK SKY GLOWS."

IndexCatalogueMug

Nightglowe, the Airglow Sleepwalker Mug

\[\text{H} + \text{O}_3 \to \text{OH}(v \le 9) + \text{O}_2\]
$21.99 USD
$21.99 USD
Oferta Agotado
Size

OH airglow (Meinel bands) dominates the near-infrared night-sky background.

The joke: Near-IR observers know the sky itself is bright. The slogan on the mug reads EVEN THE DARK SKY GLOWS.

Source: A. B. Meinel, ApJ 111, 555 (1950).

Shipping calculated at checkout by destinationMade to order, ships in ~10 days

Details

Size & material11oz · 15oz

Black glossy ceramic mug with a C-handle. Lead- and BPA-free.

  • 11oz: 0.33 l
  • 15oz: 0.44 l
CareDishwasher & microwave safe

Dishwasher safe (top rack) or hand wash. Microwave safe.

ShippingBy destination

Shipping calculated at checkout by destination.

Made to order: about 10 days of production and handling before it ships.

Delivery times & where we ship

Returns & replacements21 days

Every item is printed to order, so we can’t accept returns or exchanges for change of mind, or if you ordered the wrong size or colour.

Print defect, misprint, damage or the wrong item? We’ll send a free replacement, or a refund if you prefer. Report it within 21 days of delivery with a photo; no need to send it back.

Full refund & replacement policy

The physics

OH airglow (Meinel bands) dominates the near-infrared night-sky background.

The joke: Near-IR observers know the sky itself is bright. The slogan on the mug reads EVEN THE DARK SKY GLOWS.

Source: A. B. Meinel, ApJ 111, 555 (1950).

Equations

\[\text{H} + \text{O}_3 \to \text{OH}(v \le 9) + \text{O}_2\]
\[\text{OH}(v') \to \text{OH}(v'') + h\nu\]
SymbolMeaningUnit
\(v\) vibrational quantum number of OH —
\(h\) Planck constant \(\mathrm{J·s}\)
\(\nu\) photon frequency \(\mathrm{Hz}\)

Sources

  1. A. B. Meinel, ApJ 111, 555 (1950)

Field notes

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