Duplicate image at moonset - Couverture souple

Geldart, Peter

 
9781998321360: Duplicate image at moonset
Couverture souple
ISBN 10 : 1998321363 ISBN 13 : 9781998321360
Editeur : Petra Books, 2025

Synopsis

Observations were made over a great lake with a clear view to the horizon of moonsets that displayed a duplicate image below. This is known as an Etruscan Vase or an Omega effect because of the shape. The cause of the inferior image is considered: refraction, reflection, or gravitation.

"Since the phenomenon is only seen from a low vantage point looking over a level surface to a clear horizon it underscores the importance of the observer's position."

The cause of the inferior image observed on the horizon during Moon/Sun set/rise is examined. A refraction model suggests that light from the geometric moon beyond the horizon passes through air layers of different temperature and density to bend down to the observer. Yet this is inadequate in explaining the rising inferior image which is robust and not mirage-like. The author considers if refraction, reflection or gravitation play a role in its appearance.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

À propos de l'auteur

The author is interested in science and astronomy.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
Petra Books
Date d'édition
2025
Langue
anglais
ISBN 10 
1998321363
ISBN 13 
9781998321360
Reliure
Broché
Nombre de pages
32
Coordonnées du fabricant
non disponible
Personne responsable
non disponible