Aurora Borealis from Boyle, Co Roscommon a little late

Aura Boyle
top of curliew mountains, Boyle.
looking towards Carrowkeel in the Bricklieve Mountains.
Also pictured my trusty mountain Goat

20/12/2015 22:07
NIKON D700
F-stop f/2.8
Exposure 30 sec
ISO 1250
Len 24 mm- 70 mm wide angle

I've never seen an aurora in an upside down arc formation.
Could this be a stitched image?
Nice panoramic image

Eamonn

Thanks
yap its panoramic of three Photos, stitched in Pshop