David's Astronomy Pages (All Sky Camera) Aurora on night 2023-02-08 / 2023-02-09

Aurora  2023-01-13

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Aurora 2023-03-14

Aurora

Notes

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

- Aurora activity visible from NE Scotland on the evening of 2023-02-08 / 2023-02-09   - Scandinavia magnetometers indicate activity at 20:00 to 05:00 UT with a very strong peak of activity at 20:00 to 20:30 UT, with other smaller peaks at 23:00, 00:10, 02:00 and 04:00   - Sky was cloudy from observatory site until around 22:00 so peak activity was missed. Activity was visible from observatory intermittently from 22:38 to 02:00 UT or so. Activity was generally weak and impacted by moonlit skies.      -

Pictures

Panoramic View - Northern Sky

2023-02-08 20:20 UT Peak of activity (according to Scandinavian Magnetometers), hidden by cloud & rain Skies not clearing until ~ 22:00

2023-02-08 22:38 UT First signs of aurora activity. Low down on northern horizon and moving.

2023-02-08 22:40:00 UT Auroral arc developing low down on N-NNW horizon

2023-02-08 22:40:30 UT Curtains moving along aurora arc (frame is taken just 30s after frame above)

2023-02-08 22:51 UT Aurora Ray to 12 deg

2023-02-09 00:28 UT Aurora arc developing again. (Artefact in NW direction due to moonlit reflection in camera hemisphere)

2023-02-09 00:30 UT Auroral arc brightening

2023-02-09 00:50 UT Aurora activity, curtains moving.  Possible rays but lost in bright moonlit sky

2023-02-09 01:53 UT Temporay increase in aurora activity but somewhat lost in the bright moonlit sky. Activity overall reducing

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 (2023-02-08 / 2023-02-09 ) Times on plot are local times (GMT = UTC +00h ) Activity visible on keogram 22:30 to 03:45 UT, with peak (brightest) activity at 00:40 UT

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Magnetometer Stack Plots (for reference)

Magnetometer Stack Plots from Scandinavia (ordered by latitude) H Component - 2023-02-08 / 2023-02-09 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) planetary-k-index_2023-02-08 / 2023-02-09 TBA

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Aurora Forecast, NOAA/Ovation (for reference)

Aurora Forecast at 2023-02-08 23:00 UT for 23:37 UT (From Space Weather Prediction Centre,  http://www.swpc.noaa.gov )

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