PHYSICAL DOUBLE STAR

Domain	Definition
Aerospace	Two stars in nearly the same line of sight and at approximately the same distance from the observer, as distinguished from an optical double star (two stars in nearly the same line of sight but differing greatly in distance from the observer).If the stars revolve about their common center of mass, they are called a binary star. (references)
Source: compiled by the editor from various references; see credits.

Crosswords: PHYSICAL DOUBLE STAR

Specialty definitions using "PHYSICAL DOUBLE STAR": optical double star. (references)

Source: compiled by the editor from various references; see credits.

Anagrams: PHYSICAL DOUBLE STAR

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-a-b-c-d-e-h-i-l-l-o-p-r-s-s-t-u-y"
	-5 letters: astrophysical, perissodactyl, rhapsodically, superloyalist, ultraphysical.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.

Alternative Orthography: PHYSICAL DOUBLE STAR

Hexadecimal (or equivalents, 770AD-1900s) (references)

Leonardo da Vinci (1452-1519; backwards) (references)

Binary Code (1918-1938, probably earlier) (references)

HTML Code (1990) (references)

ISO 10646 (1991-1993) (references)

Encryption (beginner's substitution cypher): (references)