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DescriptionView of the southern spiral NGC 300.jpg
English: This picture of the spectacular southern spiral galaxy NGC 300 was taken using the Wide Field Imager (WFI) at ESO’s La Silla Observatory in Chile. It was assembled from many individual images through a large set of different filters over many observing nights, spanning several years. The main purpose of this extensive observational campaign was to get an unusually thorough census of the stars in the galaxy, counting both the number and varieties of stars and marking regions, or even individual stars, that warrant deeper and more focussed investigation. But such a rich data collection will also have many other uses for years to come.
The images were mostly taken through filters that transmit red, green or blue light. These were supplemented by images through special filters that allow through only the light from ionised hydrogen or oxygen gas and highlight the glowing clouds in the galaxy’s spiral arms. The total exposure time amounted to around 50 hours.
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Largeur
7 603 px
Hauteur
7 603 px
Bits par composante
0
306
2
Schéma de compression
LZW
Composition des pixels
RVB
Orientation
Normale
Nombre de composantes
3
Résolution horizontale
0,086206896551724 pt/po
Résolution verticale
296 809 pt/po
Arrangement des données
Format tronçonné
Espace colorimétrique
Non calibré
Largeur de l’image
7 603 px
Hauteur de l’image
7 603 px
Logiciel utilisé
Adobe Photoshop CS3 Windows
Date et heure de la numérisation
22 octobre 2010 à 15:15
Date de modification du fichier
22 octobre 2010 à 15:15
Date de la dernière modification des métadonnées
22 octobre 2010 à 15:15
Source
European Southern Observatory
Crédit ou fournisseur
ESO
Titre court
Wide Field Imager view of the southern spiral NGC 300
Titre de l’image
This picture of the spectacular southern spiral galaxy NGC 300 was taken using the Wide Field Imager (WFI) at ESO’s La Silla Observatory in Chile. It was assembled from many individual images through a large set of different filters over many observing nights, spanning several years. The main purpose of this extensive observational campaign was to get an unusually thorough census of the stars in the galaxy,counting both the number and varieties of stars and marking regions, or even individual stars, that warrant deeper and more focussed investigation. But such a rich data collection will also have many other uses for years to come. The images were mostly taken through filters that transmit red, greenor blue light. These were supplemented by images through special filters that allow through only the light from ionised hydrogen or oxygen gas and highlight the glowing clouds in the galaxy’s spiral arms. The total exposure time amounted to around 50 hours.