David's Astronomy Pages (All Sky Camera) Aurora on night  2022-02-10 / 2022-02-11 am

Aurora  2022-02-09

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Aurora 2022-02-23

Aurora

Notes

Pictures Videos Summary Plot Magnetometer Stack Plots (for reference) Planetary K-Index Plot (for reference) Aurora Forecast, NOAA/Ovation (for reference)

- Aurora display visible from NE Scotland on 2022-02-10 / 2022-02-11(am)  that was associated with a minor coronal mass ejection (CME) that hit the Earth's magnetic field 2022-02-09 @ 2100 UT but took some 24 hours to develop into a geomagnetic storm (seeming associated with the point that the Bz parameter swung south)   - Scandinavia magnetometers indicate activity from 16:00 UT to 04:00 UT with peak activity at around 21:00 to 22:00 UT.   - Activity was visible from my observatory site between 2022-02-10 23:10 UT (time of first clear sky view) and 2022-02-11 03:25 UT, with peak activity seen at between 02:08 & 02:25 UT (2022-02-11) - Aurora arc at around 6 deg altitude at peak with rays to 10-15 deg altitude - Display affected significantly by bright moonlight sky   - Probable activity earlier than 23:10 UT (2022-02-10) but it was hidden from view by a combination of distant cloud along northern horizon,  low cloud/snow shower (21:50-22:00) and afterwards by snow on the camera's perspex hemisphere (till it was noticed and removed at 23:10).   - It was during this time (22:18) that a nice colourfull display was seen by Alan Tough at Hopeman, Moray, some 50 miles to NW.  (see his photo on flicker incl. exif data)  (or his photo uploaded to SpaceWeather.com)      - Some shortlived weak activity was observed the previous night  some 4 hours after the CME hit the earth.. < Aurora Images/Video from 2022-02-09 (2022-02-10am)      - Telescope Images from 2022-02-10 (S969) >>

Pictures

Panoramic View - Northern Sky

2022-02-10 21:05 UT DIstant clouds along northern horizon illuminated by moon and by light pollution (NNW) from nearby town Satellite flash in WNW sky (indicated by white circle) Light artifact in NNE/NE sky at 45 deg altitude position due to light reflection from moon.

2022-02-10 21:28 UT Shower clouds approaching.

2022-02-10 21:43 UT Snow shower approaching,  northen horizon/sky witth any aurora is oculuded

2022-02-10 22:18 UT Snow left on AllSky Camera's perspex hemisphere following snow shower that passed through at 21:50-22:00 UT This image taken at same time (22:18) that Alan Tough was taken photograph of aurora at Hopeman, Moray, 50 miles to NW Possible indication of auroral light between the areas of snow (eg NNE) but hard to tell for sure.

2022-02-10 23:11 UT Bright moon lit sky. Weak aurora arc (at 5 deg altitude) & aurora activity visible just above northern horizon. (this image taken shortly after clearing snow from off the AllSky Camera at 23:10) Light artifact in ENE direction from moonlight in camera.

2022-02-10 23:55 UT Bright moonlit sky.  Auroral arc to 6 deg altitude. Moonlit condensation in left hand side of image view. Light arefect from Moon reflectionin

2022-02-11 00:57 UT Bright moonlit sky.  Auroral arc to 5-6 deg altitude.  Little change over 110 minutes from 23:10 to 02:00 Moon in west sky.  Moonlit condensation in left hand side of image view.

2022-02-11 02:07 UT Bright moonlit sky.  Auroral arc brightening, just ahead of peak of activity seen at 02:08 to 02:20 UT Moon in west sky.  Condensation now cleared.

2022-02-11 02:12 UT Bright moonlit sky. Rays moving along auroral arc (best seen in video)  . Rays to 10-15 deg altitude.

2022-02-11 02:43 UT Bright moonlit sky.  Rays and possble auroral curtains along northern horizon but diificult to see due to bright sky background. Activity gradually decreased over next 40 minutes with last activiy at around 03:25 UT.

30s exposures taken with Oculus All Sky Camera

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 Videos

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Night Summary Plot

Night Summary Plot - North Sky (2022-02-10 / 2022-02-11) Times on plot are local times (GMT = UTC +00h ) Bright moonlit sky. Cloud cover before 22:00 UT.  Snow cover on camera 22:00 to 23:10 UT Weak auroral activity between 23:10 and 03:25 UT . Peak activity at 02:08-02:20 UT (2022-02-11)

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Magnetometer Stack Plots (for reference)

Magnetometer Stack Plots from Scandinavia (ordered by latitude) H Component - 2022-02-10 / 2022-02-11 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)

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Planetary K-Index Plot (for reference)

Estimated 3 hour Planetary K-Index (NOAA) (K indices of 5 or greater indicate storm-level geomagnetic activity around earth)  (from http://services.swpc.noaa.gov)

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Aurora Forecast, NOAA/Ovation (for reference)

Aurora Forecast at 2022-02-10 20:00 UT for 20:54 UT (From Space Weather Prediction Centre,  http://www.swpc.noaa.gov )

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