parhelia

n.

假日，幻日( parhelion的名词复数 )；

1. During this alignment, each crystal can act like a miniature lens, refracting sunlight into our view and creating phenomena like parhelia, the technical term for sundogs.
   在这个平面内，每一个冰晶就像一个小透镜一样，将太阳光折射入我们的视野，造成幻日现象，其术语就是幻日。

Parhelia
Parhelia
Parhelia
Intensity plots of the parhelia
A BRILLIANT DISPLAY OF PARHELIA (SUN DOGS)
The Formation of Parhelia at Higher Solar Elevations.
ANCIENT CHINESE OBSERVATIONS OF SOLAR HALOES AND PARHELIA
An epistolary lab: The case of Parhelia and Halo's in Descartes correspondence
PARHELIA: Particle Filter-Based Heart Rate Estimation from Photoplethysmographic Signals during Physical Exercise
Polarization Structures in Parhelic Circles and in 120 degrees Parhelia.
LX. Description of some parhelia seen at Portsea on the 29th of March 1848; with some remarks on these phænomena generally
Identification of Odd-Radius Halo Arcs and of 44 degrees /46 degrees Parhelia by Their Inner-Edge Polarization
A Representation of the Parhelia Seen in Kent, Dec. 19. 1741. Communicated in a Letter from the Revd Mr. H. Miles, to John Eames, F...