Fr.: désignation des astéroïdes
1) For an asteroid whose orbit is precisely known, a number and optionally
a proper name, e.g. (7) Iris, (24101) Cassini, (99942) Apophis.
Fr.: designation de Bayer
A stellar designation system in which a specific star is identified by a Greek letter, followed by the genitive form of its hosting → constellation's Latin name. For example, Alpha Eridani, Delta Cephei, Lambda Bootis. The Greek alphabet has only 24 letters. In case a single constellation contained a larger number of stars, Bayer amended with Latin letters: upper case A, followed by lower case b through z (omitting j and v), for a total of another 24 letters. Bayer did not go beyond z, but later astronomers added more designations using both upper and lower case Latin letters, the upper case letters following the lower case ones in general. Examples include, for Vela: a Vel (Velorum), z Vel, A Vel, Q Vel; for Scorpius: d Sco (Scorpii), A Sco; for Leo: b Leo (Leonis), o Leo, A Leo, → c Orionis. Compare with the → Flamsteed designation.
First introduced by Johann Bayer (1572-1625) in his atlas Uranometria, published in 1603 at Augsburg, Germany; → designation.
Fr.: désignation des comètes
A → nomenclature system for naming
In early 1995, a new comet designation system was established by the
→ International Astronomical Union. The main rules
are as follows:
1) barsé; 2) barsidan
Fr.: 1) dessin, plan, projet, conception; 2) dessiner, tracer le plan
1a) An outline, sketch, or plan, as of the form and structure of a work of
art, an edifice, or a machine to be executed or constructed.
M.E. designen, from M.Fr. desseign "purpose, project, design," from It. disegno, from disegnare "to mark out," from L. designare "mark out, devise, designate, appoint," from → de- "out" + signare "to mark," from signum "a mark, → sign."
Barsé, related to (Delijâni) barsi "to throw," variants baysi, vaesi,
deresi; (Xonji, Gerâši) bar-, barressa "to fall down;" ultimately
from Proto-Ir. *garH- "to throw;" cf. (+*ni-) Av. niγr- "to
throw down;" Khotanese bīr- "to throw, sow;" Pers. garzin
"a pointed arrow;"
Pashto qoer "jump, leap," aqar "fitting an arrow to the bow-string
ready to shoot;" cf. Skt. gar- "to raise a weapon;" Gk. ballein
"to throw," → problem, blema "projectile;" PIE root
*gwelH- "to throw"
(Cheung 2007). Barsé is coined on the model of Ger. Entwurf
"design; project" and entwerfen "to design,"
from werfen "to throw;" Pers. dar-andâxtan "to propound, to pose"
(Hâfez: falak râ saxt beškâfim o tarhi now dar-andâzim);
also Ar. tarh (
Fr.: dessinateur, créateur, designer
A person who devises or executes designs, especially one who creates forms, structures, and patterns, as for works of art or machines (Dictionary.com).
Fr.: designation de Flamsteed
A stellar designation system in which each star is assigned a number followed by the Latin genitive of its corresponding → constellation, such as → 61 Cygni and 82 Eridani. Compare with the → Bayer designation.
Named after John Flamsteed (1646-1719), founder of the Greenwich Observatory, and the first astronomer royal of England, who introduced this system in his catalog Historia Coelestis Britannica (1725); → designation.
grand design spiral galaxy
kahkešân-e mârpic-e farsâz
Fr.: galaxie spirale parfaite
A galaxy with prominent → arms that are clearly attached to the central → bulge or → bar spiraling continuously outward until they reach the edge of the visible disk. Some examples are: → Whirlpool galaxy (M51), M74 (NGC 628), and NGC 2997.
M.E. graunt, from O.Fr. grant, grand, from L. grandis "big, great," also "full-grown;" design, from M.E. designen, from L. designare "mark out, designate, appoint," from → de- "out" + signare "to mark," from signum→ sign; → spiral; → galaxy.
variable star designation
nâmgozini-ye setâre-ye vartandé
Fr.: designation des étoiles variables
A set of conventions used for naming → variable stars. Stars with existing → Bayer designations are not given new designations. Alternatively, the letters R through Z are used followed by the Latin genitive of the name of the hosting constellation. Otherwise, two letters of alphabet are used (334 combinations) with the Latin genitive of the name of the constellation. Finally, the letter V (variable) is used followed by numbers 335, 336, and so on. Some examples are: → P Cygni, → T Tauri, → FU Orionis, → EX Lupi, and → V2052 Oph.