alb3996472

Medal commemorating Pierre Janssen and Norman Lockyer, French and English astronomers, 1868. Artist: Unknown

Medal commemorating Pierre Janssen and Joseph Norman Lockyer, French and English astronomers, 1868. In 1868, working independently of each other on spectroscopic studies of solar prominences, Pierre Jules Cesar Janssen (1824-1907) and Joseph Norman Lockyer (1836-1920) both observed a yellow line in the solar spectrum. Lockyer named it Helium from helios (sun). Reverse of a commemorative medal showing Phaeton driving his father Apollo's chariot near the sun.

Partager
Pinterest
Twitter
Facebook
Copier le lien
Email

Ajouter à une autre Lightbox

Avez-vous déjà un compte? S'identifier

Vous n'avez pas de compte ? S'inscrire

Acheter cette image. Sélectionnez l'usage:

Titre: Medal commemorating Pierre Janssen and Norman Lockyer, French and English astronomers, 1868. Artist: Unknown

Légende: Voir la traduction automatique
Medal commemorating Pierre Janssen and Joseph Norman Lockyer, French and English astronomers, 1868. In 1868, working independently of each other on spectroscopic studies of solar prominences, Pierre Jules Cesar Janssen (1824-1907) and Joseph Norman Lockyer (1836-1920) both observed a yellow line in the solar spectrum. Lockyer named it Helium from helios (sun). Reverse of a commemorative medal showing Phaeton driving his father Apollo's chariot near the sun.

Crédit: Album / Oxford Science Archive / Heritage Images

Autorisations: ? Autorisation de modèle: Non - ? Autorisation de propriété: Non
Questions sur les droits?

Taille de l'image: 4237 × 4122 px | 50.0 MB

Taille d'impression: 35.9 × 34.9 cm | 1668.1 × 1622.8 in (300 dpi)

Mots clés: ANIMAL • ANIMAUX • ASTRONOMIE • COULEUR • DÉCOUVERTE • OBJET • SCIENCE: ASTRONOMIE • SYSTEME SOLAIRE