David's Astronomy Pages (All Sky Camera) Aurora on night  2015-04-20 /  2015-04-21

Aurora 2015-04-09

All Sky Images

Home Page

Squall 2015-05-26

Aurora	Notes
Pictures Videos Summary Plot Magnetometer Stack Plots (for reference)	- Aurora display relatively low in northern sky and generally fairly week. Two main periods of activity  were at  23:38h LT - 00:11h LT  and at 01:53 LT - 03:52h LT - Frames could benefit from being reprocessed as they are too dark.

Pictures

Panoramic View - Northern Sky

2015-04-20 22:36h UT (22:36h LT (BST). Image #353911

2015-04-21 01:56h UT (02:56h BST, frame #354235)

2015-04-21 02:08h UT (03:08h BST, frame #354249)

Panorama views converted from original fish eye images 30s exposures taken with Oculus All Sky Camera

Back to Top

Videos

Back to Top

Night Summary Plot

Night Summary Plot (2015-04-20 to 2015-04-21) Times on plot are local BST times (UT +1 hour) Two main periods of activity  were at  23:38h LT - 00:11h LT  and at 01:53 LT - 03:52h LT.  These are very faint on Summary Plot- unusually the aurora was weaker to N then to NNW and NNE.

Back to Top

Magnetometer Stack Plots (for reference)

Magnetometer Stack Plots from Scandinavia (ordered by latitude) H Component - 2015-04-20 / 2015-04-21 Original data from Tromsø Geophysical Observatory (TGO), DTU Space (Technical University of Denmark) and Finnish Meteorological Institute (FMI) Displayed on SpaceWeatherLive http://www.spaceweatherlive.com/en/auroral-activity/magnetometers. Note: Geomagnetometer activity at rvk (Rorvik, 64.95N), dob (Dombas, 62.07N), sol (Solund, 61.08N) and kar (Karmoy, 59.21N) stations are used as indicators for potential auroral activity that may be visible from my Observatory situated at latitude 57.32N  (Map of Stations)

Back to Top