David's Astronomy Pages (All Sky Camera) Aurora on night 2025-12-12 / 2025-12-13

Aurora 2025-11-11

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Aurora 2025-12-12

Aurora

Notes

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

- Auroral activity on the night 2025-12-12 / 2025-12-13 associated with a period of geomagnetic activity up to Kp5 Skies in NE Scotland were generally clear for the whole display Activity was visible on camera images from around 17:00 to 02:15 UT (GMT) with peaks around 19:30 and around 22:30 UT (GMT). Observed activity comprised a variety of green aurora stretching to 40° altitude, with occasional faint red rays. Interesting green streamers at 18:34-18:38 & 18:47 UT (GMT). Images and video below compare colour images captured by the north facing Tapo C325WB Camera, with the black/white images captured using the existing AllSky Camera at approximately the same time.   -  Scandinavian magnetometers recorded activity from15:00 to 02:30 UT with initial peak of activity at 18:30-20:30 UT, with further peak in activity at 22:15 to 00:30 UT.   Lerwick Magnetometer shows activity up to K6.     - Telescope Images from 2025-12-12 >> - -

Night Summary (Keogram) Plot

Night Summary Plot - North Sky (2025-12-12 / 2025-13-13) Aurora Activity visible on colour keogram from 17:00 to 02:15 UT with peaks around 19:30 and  to 22:30 UT (GMT) Note: Times on plot are local times (GMT)

Night Summary Plot - North Sky  (2025-12-12 / 2025-13-13) Note: Times on plot are local times (GMT = UT) Aurora Activity faintly visible on b/w keogram from17:15 to 01:00 UT (GMT)

Scandinavia Magnetometers vs NorthCam Keogram -  2025-12-12 / 2025-13-13

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Pictures (AllSky Camera) - Under Construction *** (pictures here are from an earlier display) ***

Panoramic View - Northern Sky

2025-11-12 00:28 UT (GMT) Aurora

2025-11-12 01:00 UT (GMT) Aurora

2025-11-12 01:07 UT (GMT) Aurora

2025-11-12 01:12 UT (GMT) Aurora

2025-11-12 01:13 UT (GMT) Aurora

2025-11-12 01:18 UT (GMT) Aurora

2025-11-12 01:26 UT (GMT) Aurora

2025-11-12 01:36 UT (GMT) Auroral

2025-11-12 01:45 UT (GMT) Auroral

2025-11-12 01:53 UT (GMT) Auroral

2025-11-12 01:55 UT (GMT) Auroral

2025-11-12 01:59 UT (GMT) Auroral

2025-11-12 02:03 UT (GMT) Auroral

2025-11-12 02:11 UT (GMT) Auroral

2025-11-12 02:17 UT (GMT)  Aurora

2025-11-12 02:31 UT (GMT)  Aurora

2025-11-12 03:04 UT (GMT)  Aurora

15s frames taken with Tapo C325WB Colour Camera vs 30s wider-field exposures taken with Oculus All Sky Camera

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 Videos

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Magnetometer Stack Plots (for reference)

Magnetometer Stack Plots from Scandinavia (ordered by latitude) H Component - 2025-12-12 / 2025-12-13 Activity from 15:00 to 02:30 UT with initial peak of activity at 18:30-20:30 UT, with further peak in activity at 22:15 to 00:30 UT 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)

Graphed using 'make your own graph' facilities at  https://flux.phys.uit.no/compose/   (Tromsø Geophysical Observatory  ) Original data from Tromsø Geophysical Observatory (TGO), DTU Space (Technical University of Denmark) and Finnish Meteorological Institute (FMI) Data also displayed on SpaceWeatherLive's Europe Stackplot at  http://www.spaceweatherlive.com/en/auroral-activity/magnetometers).   Clair Observatory data below at same scale.

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Planetary K-Index Plot (for reference)

Estimated 3 hour Planetary K-Index (NOAA)  (from http://services.swpc.noaa.gov) Planetary-k-index_ 2025-12-12 / 2025-12-13 Not captured

SAMNET's magnetometer at Sumburgh, Shetland  (Chart Explanation)  - Geomagnetic activity on the night  2025-12-12 / 2025-12-13 Plot shows elevated activity from17:00 to 01:00 UT with peak activity at a19:00-20:00 UT

8-day Lerwick Observatory K Index Showing max K5 on the night  2025-12-12 / 2025-12-13

Planetary K-Index and other information (Space Weather Prediction Centre) shows maximum Kp5- during the night  2025-12-12 / 2025-12-13

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Aurora Forecast, NOAA/Ovation (for reference) 

Aurora Forecast for 2025-12-12 19:53 UT (From Space Weather Prediction Centre,  http://www.swpc.noaa.gov )

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