WW

WW may refer to:

In entertainment:

List of Latin-script digraphs

This is a list of digraphs used in various Latin alphabets. Capitalization involves only the first letter (ch – Ch) unless otherwise stated (ij – IJ).

Letters with diacritics are arranged in alphabetic order according to their base. That is, ⟨å⟩ is alphabetized with ⟨a⟩, not at the end of the alphabet as it would be in Norwegian, Swedish and Danish. Substantially modified letters such as ⟨ſ ⟩ (a variant of ⟨s⟩) and ⟨ɔ⟩ (based on ⟨o⟩) are placed at the end.

Apostrophe

⟨’b⟩ (capital ⟨’B⟩) is used in the Bari alphabet for /ɓ/.

⟨’d⟩ (capital ⟨’D⟩) is used in the Bari alphabet for /ɗ/.

⟨’y⟩ (capital ⟨’Y⟩) is used in the Bari alphabet for /ʔʲ/. It is also used for this sound in the Hausa language in Nigeria, but in Niger, Hausa ⟨’y⟩ is replaced with ⟨ƴ ⟩.

A

⟨a’⟩ is used in Taa orthography, where it represents the glottalized or creaky-voiced vowel /a̰/.

⟨aa⟩ is used in the orthographies of Dutch, Finnish and other languages with phonemic long vowels for /aː/. It was formerly used in Danish and Norwegian (and still is in some proper names) for the sound /ɔ/, now spelled ⟨å⟩.

1998 WW31

1998 WW₃₁ (also written 1998 WW31) is a double Kuiper belt object. It was discovered in 1998 by the Deep Ecliptic Survey (DES).

1998 WW₃₁ forms a binary system with another object with the IAU provisional designation S/2000 (1998 WW31) 1: the first trans-Neptunian binary to be discovered since Pluto, and one of the most symmetrical binaries known in the Solar System. The two bodies are very close in size, with a diameter ratio of 1.2 and a mass ratio of 1.74, assuming similar surfaces and densities. Their orbital period is approximately 570 days, and they orbit at a distance of approximately 4000 km (closest approach) to 40,000 km, with a semi-major axis of about 22,000 km. Their diameters are likely to be in the 100–150 km range, assuming a density of 1–2 g/cm³. Their combined mass is 1/6000th that of the Pluto–Charon system.

References

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