A 360° fish-eye panorama of the great equinox aurora of March 23, 2023, with the aurora already bright as the sky darkened at twilight. The Kp values


A 360° fish-eye panorama of the great equinox aurora of March 23, 2023, with the aurora already bright as the sky darkened at twilight. The Kp values peaked at Kp7 this night. A purple arc stretches high across the sky, looking a little like a STEVE arc, with a green band below it to the south. The green arc has some of the features of a "dunes" aurora in that it shows horizontal streaks. This is looking east (at left) to south (at bottom), to west (at right toward the sunset twilight) and north (at top). The zenith is at centre where the rays of the puple arc converge. The crescent Moon and Venus shine above the bright twilight arch. Orion and the winter stars are below centre. Leo and the spring stars are rising over my house at left. The Big Dipper is at top left beside an odd isolated ray of aurora. Shot from the field across the road from home, in southern Alberta. This is a stitch of 16 segments each 10 seconds with the Venus Optics 15mm lens at f/4 on the Canon R6 at ISO 800. The camera was turned portrait for vertically oriented segments. Stitched with PTGui with spherical projection.


Size: 8325px × 8325px
Photo credit: © Alan Dyer / VWPics / Alamy / Afripics
License: Licensed
Model Released: No

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