An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 13176 Search : in
calibration lamp
  لامپِ کبیزش   
lâmp-e kabizeš

Fr.: lampe d'étalonnage   

A lamp used for instrument calibration, such as an internal He-Ar arc for wavelength calibration or an external source of light placed in the telescope dome for flat-field exposures.

calibration; lamp, from O.Fr. lampe, L. lampas, from Gk. lampas "torch, lamp, light, meteor," from lampein "to shine."

Kabizeš, → calibration; lâmp, from Fr., as above.

calibrator
  کبیزنده   
kabizandé

Fr.: étalon   

A general term for certain reference astronomical sources that allow determining the characteristics (magnitude, distance, velocity, etc.) of other sources. → primary calibrators, → secondary calibrators.

Calibrator, from → calibrate + → -or.

Kabizandé, agent noun from kabizidan, → calibrate.

call
  ۱) ژاریدن؛ ۲) نامیدن؛ ۳) ژاره، ژار   
1) žâridan; 2) nâmidan; 3) žâre, žâr

Fr.: 1, 2) appeler; 3) appel   

1a) To cry out in a loud voice; shout.
1b) To command or request to come; summon.
1c) To speak loudly, as to attract attention; shout; cry.
2) To name or address (someone) as.
3a) A cry or shout.
3b) The cry or vocal sound of a bird or other animal (Dictionary.com)

M.E. callen, from O.Norse kalla "to call out," cognate with M.Du. kallen "to talk," O.H.G. kallon "to shout," akin to O.E. -calla "herald," Irish gall "swan," O.C.S. glasu "voice".

Žâridan, from žâr, from Oroshori (or Roshorvi) žâr-/žart- "to sound, ring," cognate with Parachi jâr "to say," Ossetic gær, qær "noise, shout," other cognates in Per. âžir "cry, call", qâl, qil "noise, brouhaha," jâr "cry, call", žaqâr, zaqâr "cry, call", payqâre "blame, reproval," gerâmi "dear, beloved," ultimately from Proto-Ir. *uz-garH-, from *garH- "to call, greet," which has also given rise to Av. âγar- "to greet," akin to Skt. gari "to praise, welcome;" L. gratis "welcome;" PIE root gwerH- "to praise, to say."

Callipic period
  دوره‌ی ِ کلیپوسی   
dowre-ye Kalipusi

Fr.: période callipique   

A period of 76 years after which the new and full moons would return to the same day of the solar year. This was intended as an improvement of the → Metonic cycle because the 6940 days of the Metonic cycle exceeded 19 years by about a quarter of a day, and exceeded 235 → lunations by a larger amount of time.

Named after Calippus of Cyzicus (about 370-300 BC), a Greek astronomer and mathematician.

Callisto (Jupiter IV)
  کالیستو   
Kâlisto (#)

Fr.: Callisto   

The eighth of → Jupiter's known moons and the second brightest and the outermost of the four → Galilean satellites. With a diameter of 4800 km (0.38 Earths), Castillo is roughly the same size as Mercury. It orbits Jupiter in 16.689 days at a distance of 1,883,000 km from the planet, beyond Jupiter's main → radiation belts. It is the third largest moon in the entire solar system. Its mass is 10.76 × 1022 kg (about 1.5 Earth Moons) and its mean → surface temperature is -155 °C. The most prominent feature of Callisto is its craters, as it has the most craters of any object in the solar system. Due to its orbit being further away from Jupiter, it is not under the same → tidal heating influences as → Io, → Europa, or → Ganymede. Callisto's thin → atmosphere is composed of → carbon dioxide and likely some → molecular oxygen. Callisto is thought to have formed as a result of slow → accretion from the → protoplanetary disk of gas and dust that surrounded Jupiter after its formation.

Callisto, an attendant of Artemis in Greek mythology. Because of her love affair with Zeus, she was transformed into a bear by Artemis. According to another legend she was changed into a bear by the jealous Hera. Zeus transferred her to the heavens as the → constellation  → Ursa Major (great bear).

calorie (cal)
  کالری   
kâlori (#)

Fr.: calorie   

1) Thermodynamics: The amount of → heat, in the → CGS system, required to raise the temperature of one gram of water from 14.5 °C to 15.5 °C at standard pressure. It is equal to 4.1858 → joules, a quantity called the 15° calorie. Also called gram-calorie, small calorie.
2) Physiology: A unit used to express the heat output of an organism and the fuel or energy value of food. It is equal to one kilocalorie.

From Fr. calorie, from L. calor "heat," calidus "warm;" PIE base *kelə- "cold; warm;" Av. sarəta- "cold;" Mod.Pers. sard "cold, cool;" Skt. śiśira- "cold;" Ossetian sald "cold," Lith. šaltas "cold," silti "become warm;" Welsh clyd "cool."

calorimetry
  گرماسنجی   
garmâsanji (#)

Fr.: calorimétrie   

The measurement of the amount of → heat involved in various processes, such as chemical reactions, changes of state, and formation of solutions.

From L. calori- "heat," combining form of calor, → calorie, + → -metry.

Garmâsanji, from garmâ  → heat + -sanji  → -metry.

calve
  گوگیدن   
gugidan

Fr.: vêler   

1) To give birth to a calf.
2) Of a → glacier, to break off so as to give birth to an → iceberg. → glacier calving.

M.E. calven, O.E. (Anglian) *calfian, from → calf.

Gugidan, infinitive from gug "cow, bull," → cow.

Calypso (Saturn XIV)
  کالوپسو   
Kalupso (#)

Fr.: Calypso   

A satellite of Saturn discovered in 1980 on the images taken by Voyager 1. It shares the same orbit as Telesto and Tethys at a distance of 294,660 km and turns around the planet with a period of 1.888 days. It is 34 x 22 x 22 km in size.

In Greek mythology, Calypso was a sea nymph and the daughter of the Titan Atlas.

Camelopardalis
  زرافه   
Zarrâfé (#)

Fr.: Girafe   

The Giraffe. An extended but inconspicuous → constellation near the north celestial pole. Approximate position: R.A. 5 h, Dec. 70°; abbreviation Cam, genitive form Camelopardalis.

M.E., from Medieval L. camlopardus, from L. camelopardalis, from Gk. kamelopardalis, from kamelos "camel" + pardalis, pard "leopard" (because the giraffe has a head like a camel's and the spots of a leopard), from L. pardus, from Gk. pardos "male panther," from the same source (probably Iranian) as Skt. prdaku- "leopard, tiger, snake," and Pers. palang "panther."

Zarrâfé "giraffe," from Ar. zarafa, probably from an African language. This term is at the origin of this animal's name in European languages, via It. giraffa. The Pers. name of the animal is: šotor-gâv-palang, from Mid.Pers., composed of šotor "camel" + gâv "ox, bull, cow," → Taurus, + palang "panther."

camera
  کدک   
kadak

Fr.: appareil photo, caméra   

1) An apparatus for recording the light from an object onto a sensitive material, such as film or CCD detector.
2) A device that converts optical images into electrical impulses.

Mod.L. camera obscura "dark chamber" from L. camera "vaulted room," from Gk. kamara "vault," cf. Av. kamarâ- "waist; vault" Mod.Pers. kamar "waist," Skt. kamarati "is vaulted;" PIE base *kam- "to arch."

Kadak "small room," from kad, kadé "room, chamber, habitation, vault, cell, cavern," Mid.Pers. katak, Av. kata- "(small) room, closet, (small) house," cf. Goth. hethjo "small room" O.S. kotici "cavern, nest," PIE *kot(os).

Canada-France-Hawaii Telescope (CFHT)
  تلسکوپ ِ کانادا-فرانسه-هاوایی   
teleskop-e Kânâdâ-Farânsé-Hâvâyi

Fr.: télescope Canada-France-Hawaii   

A 3.6 m optical/infrared telescope jointly owned and operated by the Canadian National Research Council (NRC), the French Centre National de la Recherche Scientifique (CNRS), and the University of Hawaii. It became operational in 1979. The observatory is located atop the summit of Mauna Kea, a 4200 m, dormant volcano located on the island of Hawaii. The Observatory headquarters is located in Waimea (also known as Kamuela by the US Postal Service). Situated at the low latitude of Hawaii (+19° 45'), there is a fairly large sky overlapping with that of the → European Southern Observatory (ESO)  → La Silla observatory (δ = -29° 15'). The point where an object is seen at the same → zenith distance from La Silla and from Mauna Kea, when it crosses the meridian, is δ =-5°. Taking into consideration also the difference in elevation between the observatories, the → declination at which one has equal air mass is moved down to δ =-18°. The extreme limit of observing from Mauna Kea is -60° (10° above horizon) but all programs below -20° are most efficiently carried out from ESO.

Canada, from the St. Lawrence Iroquoian word kanata, meaning "village" or "settlement;" France, from the L. Francia "country of the Franks;" Hawaii, named for Hawai'iloa, a legendary figure from Hawaiian mytholgy; → telescope.

cancel
  فاتریدن   
fâtaridan

Fr.: barrer, rayer   

To make void; revoke; annul.

M.E. cancellen, from M.L. cancellare "to cross out," from L. cancellare "to make like a lattice," from cancelli "lattice, grating."

Fâtaridan, from Sogd. fâtar "to remove, to set aside," from *fra-taraya-, from *tar- "to cross" (Cheung 2007), → trans-.

Cancer
  خرچنگ   
Xarcang (#)

Fr.: Cancer   

The Crab. The dimmest → constellation of the → Zodiac, located in the northern hemisphere at approximately R.A. 8 h and Dec. +20°. The main feature of the constellation is the open cluster → Praesepe (M 44). Abbreviation: Cnc; genitive form: Cancri.

Cancer,from L., from Gk. karkinos; PIE base *qarq- "to be hard" (like the shell of a crab); cf. Skt. karkatah "crab," karkarah "hard."
In Gk. mythology the Crab was sent by the goddess Hera to bite Hercules in the midst of the struggle with → Hydra, but Hercules crushed the crustacean with his heel. Hera rewarded the Crab by placing it in the → Zodiac.

Xarcang "crab," from Mid.Pers. karcang, cf. Lori qerženg from kar-, qer- + cang, ženg "claw." The component xar/qer may be related to Av. xruta-, xraoždva- "hard," as in xruždisma- "hard ground" (from xruždi- + zam-), and to the PIE *qarq- "to be hard." In that case, the Pers. term for crab would literally mean "hard claw."

Cancer, Tropic of
  هورگردِ خرچنگ   
Hurgard-e Xarcang

Fr.: Tropique du Cancer   

Tropic of Cancer.

candela
  کندلا   
kandelâ

Fr.: candela   

The → SI unit of → luminous intensity in a given direction; symbol cd. It is defined by taking the fixed numerical value of the → luminous efficacy of → monochromatic radiation of → frequency 540 × 1012 Hz, Kcd, to be 683 when expressed in the unit lm W-1, which is equal to cd sr W-1, or cd sr kg-1 m-2 s3, where the kilogram, meter and second are defined in terms of → Planck's constant (h), → velocity of light (c), and ΔνCs.

From L. candela, → candle.

candidate
  نامزد   
nâmzad (#)

Fr.: candidat   

1) An applicant or suitable person for a position.
2) An astronomical entity which is being considered for belonging to a special class of entities; e.g. → black hole candidate, → dark matter candidate, → supernova candidate.

From L. candidatus "clothed in white" (reference to the white togas worn by those seeking office), from candidus "shining white," from candere "to shine," cf. Skt. cand- "to shine," candra "bright; the Moon;" PIE base *kand- "to glow, to shine."

Nâmzad, literally "nominated," from nâm, → name, + zad, p.p. of zadan "to strike" (Mid.Pers. zatan, žatan, O.Pers./Av. jan-, gan- "to strike, hit, smite, kill," Skt. han- "to strike, beat," Gk. theinein "to strike," L. fendere "to strike, push," Gmc *gundjo "war, battle;" PIE *gwhen- "to strike, kill").

candle
  شمع   
šam' (#)

Fr.: bougie, chandelle   

1) A cylinder or block of wax, tallow, or other fatty substance with a central wick, which is burned to produce light.
2) A unit of luminous intensity, superseded by the → candela.

M.E., O.E. candel, from L. candela "a light, torch," from candere "to shine," candidus "shining white" (E. candidate); cf. Skt. cand- "to shine, to glow," candati "shines," candra- "shining, glowing, the Moon;" Gk. kandaros "coal;" PIE base *kand- "to glow, to shine."

Šam', loan from Ar.

Canes Venatici
  تازی، سگانِ تازی   
Tâzi (#), Sagân-e Tâzi (#)

Fr.: Chiens de chasse   

The Hunting Dogs. A small → constellation in the northern hemisphere at approximate position: R.A. 7h, Dec. +40°. Abbreviation: CVn, genitive form: Canum Venaticorum.

L. Canes Venatic from canes, pl. of canis "dog" + venatici, pl. of venaticus "hunting." The constellation was created by the Polish astronomer Johannes Hevelius in his sky chart of 1687.

Tâzi "greyhound, hunting dog," originally "swift, fast," from tâzidan, tâxtan "to run, to assault, to chase," Av. tak- "to run," Skt. talki "he rushes at," O.S. techim "to run away," Lith. teku "to run, flow." Sagân-e Tâzi, from sagân pl. of sag "dog" → Canis Major + tâzi.

Canis Major
  سگِ بزرگ   
Sag-e Bozorg (#)

Fr.: Grand Chien   

The Greater Dog. A → constellation in the southern hemisphere which contains → Sirius, the brightest star of the whole sky. Approximate position: R.A. 7 h, Dec. -20°; abbreviation CMa; genitive form Canis Majoris.

L. Canis Major, from canis "dog" (cf. Gk. kuon, Skt. svâ-, Av. spâ-, Pers. sag; PIE *kwon-) + Maior "larger," from L. major, irregular comp. of magnus "large, great" (cf. Gk. megas, Av. maz-, masan-, mazant- "great, important," Skt. mah-, mahant-, Mod.Pers. meh; PIE *meg- "great").
Canis Major is usually seen as one of the two hunting dogs of the hunter Orion. The other dog is Canis Minor, the Little Dog.

Sag-e Bozorg, from sag, see the above paragraph, + bozorg "large, great," Mid.Pers. vuzurg, O.Pers. vazarka- "great," Av. vazra- "club," Skt. vajati, vaja- "strength," vajra- "Indira's thunderbolt," L. vegere "to be lively," PIE *weg- "to be strong, be lively."

<< < -es -it -sc 201 951 abe abs abs aca acc acc aco act ada adh ado aer aft air Alf alg alk alp Alt alt amb ana And ang ani ann ant ant ant apo app app Apu arc arg Arn art ass ast ast ast atm ato att aur aut avo azi bac bal bar bar bat Bea Bel bet bia big bin bio Bir bla bla blo Blu bol Boo bou box bre Bri bro bur cal cal Can cap car Car cat cau cel cen cen cha Cha cha che Chi chr cir cir civ cla clo clo CMB coa coe coh col col col com com com com com com com com Com con con con con con con con con con con con con coo cor cor cor Cos cos cos cou cou cra cri cro cry cul cur cyc D l dar dat day dea dec dec dec def def deg Del Den dep der det deu dew dic dif dif dil dip dir dis dis dis dis dis diu dog Dop dou Dra Dsc dus dwa dyn Dys Ear ecc eco edg egg Ein Ela ele ele ele ele ell eme emp enc eng ent epi equ equ equ eru eth Eur eve exa exc exe exi exo exp ext ext ext fab fai Fan fea fem fer fie fil fir fir fla fli flu foc for for for fra fre fre fri fun fuz gal gal gal Gam gau Gau gen geo geo geo geo Gib glo gov gra gra gra gra gre gro Gui H-a hal Ham har Hay hea hei hel Hel her het hie hig hoa hom hor hot Hub Hug hur hyd hyd hyl hyp ice ide ima ima imp imp inc inc ind ine inf inf inf ing inn ins ins int int int int int int int int inv inv ion iro Isl iso iso Jab jet Jov Jup Kar Kep kil Kip Kra Lag Lam Lan Lar las law lea Leg Leo lev lig lim lin lin lin lit loc loc log Lor low lum lun lun Lym Mac mag mag mag mag mag mai Mal map mas mas mat Mau mea mea med Men mer Mes Met met mic mic Mie mil min Mir mix mod mol mom Moo mor mov mul mur n-b nan nat nea neg Ner neu new New NGC noc nom non non nor nor nuc nuc nul nut obj obl obs occ oct off old one ope opp opt opt orb ord org Ori osc oth ove Owl P-s Pal par par par par Pas pat pec pen per per per per per Pha pha pho pho pho phy pie pix Pla pla pla pla Pli Poi pol pol pol pol por pos pos pow pre pre pre pre pri pri pri pro pro pro pro pro pro pro pub pul pyc qua qua qua qua qui rad rad rad rad rad rad rai ran rar Ray rea Rea rec rec red red ref ref reg rel rel rel ren res res res res ret rev Ric rig rin roc roo rot rot rur S5- Sal sat sca sca Sch sci Scu sec sec sed sel sel sem seq set sha she sho sid sie sil sim sin sit sky slo sno sod sol sol sol sol son sou spa spa spe spe spe spe sph spi spo squ sta sta sta sta ste ste ste Sti sto str str sub sub sub sul sup sup sup sup sur sur syl syn sys tal Tay tel ten ter tex the the the the Tho thr tid tim Tit too Tor tra tra Tra tra Tra tri Tri tru tub tur two Typ ult ult unc uni uni uni upl ura uti val var vec vel ver Ver vie vir vis vis vol W-R war wav wav wea Wei wha wid win WN3 Wol wri xen yok zen zij > >>