Left: Auroral Arc at 21.29 UT. Boötes is on the left. 15 s exposure.
Right: Bright Auroral Bands, quickly changing, at 21.48 UT. 8 s exposure.
Taken from near Arnes, Iceland. DSLR at a focal length of 18 mm, ISO 800.
Aurora, a low arc with rays higher up. No colour visible to the naked-eye. Notice the light pollution from surrounding street lamps. Observed from Rush, Co Dublin.
26th-27th August 2015 at 02.45 UT. DSLR at ISO 800. 20 s exposure.
Aurora, rayed arc with some folds. The green colour was obvious to the naked-eye, despite the full moon. Observed from off south-tip of Greenland at 10600 m.
8th-9th March 2012 at 03.17 UT. DSLR at ISO 3200, from a bumpy platform. 2 s exposure.
Auroral Corona at the zenith 20th-21st November 2003. Taken from near Kells, Co. Meath with a Nikon 4500 digital camera.
All taken from Oristown near Kells, Co. Meath. The first two images are 8 s exposures, taken with a Nikon 4500 digital camera (at ISO 400). The last three images were taken on Kodak Elite Chrome 200 slide film.
The Polar Aurora on 26th-27th October 2000 as seen from Chena Hot Springs, Alaska. 28 mm focal-length wide angle lens. Taken on Kodak Elite Chrome 200 slide film. The temperature was below -20°C at the time.
Left: A very bright display, image taken on 3rd June 2016 at 00:39 UT from Rush, Co Dublin. Exposure of 10 s with a DSLR, focal length 55 mm.
Right: Moderately bright noctilucent cloud, taken on 23rd June 2016 at 01:22 UT from Rush, Co Dublin. Exposure of 8 s with a DSLR, focal length 18 mm (cropped).
DSLR image (cropped) taken on 8th June 2013 at 00:37 UT from Rush, Co. Dublin. Exposure of 6 s, ISO 800. Focal length 35 mm. To the naked-eye they appeared very bright.
DSLR image (cropped) taken on 14th June 2010 at 01:23 UT from Rush, Co. Dublin. Exposure of 8 s, ISO 400. Focal length 47 mm.
DSLR image taken on 14th July 2006 at 22:51 UT from Rush, Co. Dublin. Exposure of 10 s.
Taken on 18th July 1990 at 03:15 UT from Barnasligan, Co. Dublin. Exposure of 30 s on Fujichrome 100 with a 50 mm camera lens.
DSLR image taken on 13th-14th May 2015 at 02:54 UT. Texas Star Party (Prude Ranch in the Davis Mountains). Exposure of 15 s, ISO 800. Focal length 18 mm. To the naked-eye it was very evident. Venus is the brightest object. The Sun was then 15° below the horizon.