David's Astronomy Pages (All Sky Camera) Aurora on night 2024-04-30 / 2024-05-01

Aurora  2024-04-16

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Aurora 2024-05-10

Aurora

Notes

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

- Auroral activity on the night of 2024-04-30 / 2024-05-01 associated with Kp 4 (G0) geomagnetic conditions. Skies in NE Scotland were partially clear and saw part of the auroral display. Activity was visible from the Clair Observatory (+57N)  from 2024-05-01 00:25 to to 01:30 UT (01:25 to 02:30 LT) Observed activity an auroral arc up to 8° altitude, with faint auroral rays up to 30°. -  Scandinavia magnetometers indicate show activity in magnetometers readings from 22:30 to 02:00 UT      - Telescope Images from night 2024-04-30 >>

Night Summary (Keogram) Plot

Night Summary Plot - North Sky (2024-04-30 ) Times on plot are local times (BST  = UTC +01h ) Keogram plot affected by cloud Aurora visible on keogram at ~ 22:09 to 23:15 LT (21:09 to 22:15 UT)

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Pictures

Panoramic View - Northern Sky

2024-05-01 00:28 UT (01:28 LT)  First signs of auroral activity in form of a weak auroral arc, partly hidden by cloud

2024-05-01 00:46 UT (01:46 LT)  Auroral arc to 7° altitude in NNW sky

2024-05-01 00:47 UT (01:47 LT)  First signs of faint rays to 20° altitude in N sky

2024-05-01 00:55 UT (01:55 LT)  Auroral arc to 7° altitude with distinct pair of rays to 20° altitude  in NNE sky

2024-05-01 00:59 UT (01:59 LT)  Faint rays to 15-20° altitude across entire NW to NE sky

2024-05-01 01:03 UT (02:03 LT)  Rays to 30° altitude in N & NNE sky. Cloud developing in NW-NNW sky ?

2024-05-01 01:04 UT (02:04 LT)  Rays to 25-30° altitude in N & NNE sky.

2024-05-01 01:13 UT (02:13 LT)  Auroral activity weakening. Very faint ray(s) in NNE Sky

2024-05-01 01:30 UT (02:30 LT)  Last signs of auroral activity. Faint auroral ray to 15° altitude in NNE sky.

30s 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 - 2024-04-30 / 2024-05-01 Activity in magnetometers readings at 21:30 to 02:00 UT 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_2024-04-30 / 2024-05-01 Not captured

SAMNET's magnetometer at Crooktree, Near Torphins  (Chart Explanation)  - Shows a large spikes in activity at 22:00 UT & lesser peaks at 00:00 to 02:00.

8-day Lerwick Observatory K Index Showing a KP 6 (G2) spike in the night of 2024-04-30 / 2024-05-01

Planetary K-Index and other information (Space Weather Prediction Centre) shows KP Index reaching KP5 in night of 2024-04-30 / 2024-05-01

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Aurora Forecast, NOAA/Ovation (for reference)

Aurora Forecast for 2024-04-30 23:59 UT (From Space Weather Prediction Centre,  http://www.swpc.noaa.gov )

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