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HEAD COMET [3 records]
Record 1 - internal organization data 2016-03-07
Record 1, English
Record 1, Subject field(s)
- Planets
Record 1, Main entry term, English
- comet’s head
1, record 1, English, comet%26rsquo%3Bs%20head
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
As the comet approaches the Sun, a nebulosity called the coma develops around the nucleus; with the nucleus it constitutes the head of the comet. 2, record 1, English, - comet%26rsquo%3Bs%20head
Record 1, Key term(s)
- head of comet
Record 1, French
Record 1, Domaine(s)
- Planètes
Record 1, Main entry term, French
- tête de comète
1, record 1, French, t%C3%AAte%20de%20com%C3%A8te
correct
Record 1, Abbreviations, French
Record 1, Synonyms, French
- tête cométaire 1, record 1, French, t%C3%AAte%20com%C3%A9taire
correct
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
L'étude du mouvement d'une comète dans l'espace repose sur la connaissance des positions qu'elle occupe (...). A moins de 1,5 U.A. du Soleil, elle présente une tête plus ou moins arrondie et une queue grossièrement opposée au Soleil. A l'intérieur de la tête, on distingue un noyau brillant de très petit diamètre apparent, entouré d'une enveloppe diffuse dégradée vers les bords, la chevelure. 1, record 1, French, - t%C3%AAte%20de%20com%C3%A8te
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2005-01-25
Record 2, English
Record 2, Subject field(s)
- Planets
- Astronomy
Record 2, Main entry term, English
- tail
1, record 2, English, tail
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- comet tail 2, record 2, English, comet%20tail
correct
- comet’s tail 3, record 2, English, comet%26rsquo%3Bs%20tail
correct
- tail of the comet 4, record 2, English, tail%20of%20the%20comet
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Extending from the head is the "tail" of the comet, although unlike most tails in nature it is sometimes in front of the comet. The tail(and not all comets have tails) points away from the sun, so as the comet recedes from the sun the tail will lead the way. 4, record 2, English, - tail
Record number: 2, Textual support number: 1 OBS
The comet’s tail is its most distinctive feature. 3, record 2, English, - tail
Record 2, French
Record 2, Domaine(s)
- Planètes
- Astronomie
Record 2, Main entry term, French
- queue
1, record 2, French, queue
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- queue de comète 2, record 2, French, queue%20de%20com%C3%A8te
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Formation allongée composée de gaz (queue de couleur bleue) et de poussières (queue de couleur jaune) issue de la désintégration et de la sublimation du noyau d'une comète sous l'effet du vent solaire. 3, record 2, French, - queue
Record number: 2, Textual support number: 1 CONT
[...] sous l'effet du vent solaire, une queue de plusieurs millions de kilomètres, composée de gaz et de poussière, se forme à partir du noyau. C'est la raison pour laquelle la queue d'une comète est toujours orientée en sens inverse du Soleil. 4, record 2, French, - queue
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2003-03-07
Record 3, English
Record 3, Subject field(s)
- Range Measurements (Telecommunications)
- Photoelectricity and Electron Optics
Record 3, Main entry term, English
- density slicer
1, record 3, English, density%20slicer
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Dean A. Ketelsen and Deborah J. Dee have photographed the head of Comet West repeatedly with a 24-inch reflector at the University of Iowa, where each original black-and-white negative can be placed in a Digicol System "density slicer". This equipment assigns a different color or tone to each of 32 discrete density levels; the image is then presented on a color television monitor and rephotographed... 2, record 3, English, - density%20slicer
Record 3, French
Record 3, Domaine(s)
- Mesures à distance (Télécommunications)
- Photo-électricité et optique électronique
Record 3, Main entry term, French
- isodensitomètre
1, record 3, French, isodensitom%C3%A8tre
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
On peut [...] utiliser un système électronique tel que le digicol [...]. Cet appareil comprend une caméra de télévision sous laquelle on place l'objet à observer: photographie noir et blanc ou couleur, contact papier ou film. [...] L'information captée par la caméra est dirigée dans un ordinateur où elle est séparée en différents niveaux de densité. 2, record 3, French, - isodensitom%C3%A8tre
Record 3, Spanish
Record 3, Textual support, Spanish
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