David's Astronomy Pages (All Sky Camera)
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Aurora 2023-09-12 |
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Aurora 2023-09-16 |
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)
- Major aurora activity on the night of 2023-09-14 / 2023-09-15 associated with a
TBA
severe G4-Class geomagnetic storm (Kp 8) that was caused by an earth directed CME (originating from the sun on 2023-04-21) hitting the earth's magnetic field.
Aurora were seen as far south as Spain (+37N) in Europe and to southern California (+32.5N) & near the Mexico/Texas border (+29.5N) in North America (SpaceWeather.com on 2023-04-24).
Unfortunately the aurora display was only locally / partially visible from NE Scotland because of cloud cover. Activity was visible from the Clair Observatory (+57N) during small / local breaks in cloud at 21:15 - 21:20, 22:08 - 22:18, 22:25 - 22:58 & 23:20 - 23:55 UT (corresponding to 23:08 -23:18, 23:25 - 23:58 & 00:20 - 00:55 LT).
Observed activity included auroral rays to 50-60°+ altitude occasionally stretching to near zenith.- Scandinavia magnetometers indicate activity from 2023-04-23 19:00 UT to around 2023-04-22 07:00 UT, with peaks of activity at 19:30-21:00 UT and 03:00 - 06:00. - Telescope Images from 2023-09-14 >>
Night Summary Plot - North Sky (2023-09-14 / 2023-09-15 ) Times on plot are local times (BST = UTC +01h ) Keogram shows cloud for almost the entire night, but with hints of aurora activity at xxx LT |
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Panoramic View - Northern Sky - Under Construction |
2023-04-23 21:17 UT (22:17 LT) - TBA Auroral activity in northern sky at 25-35° altitude, part hidden by clouds Rain drops on Camera hemisphere from recent shower. |
2023-04-23 22:14 UT (23:14 LT) Bright auroral activity to 45-55°+ altitude visible through temporary gaps in cloud cover. Rain drops on Camera hemisphere from recent shower. |
2023-04-23 22:32 UT (23:32 LT) Auroral rays in NE Sky to 30°+ altitude. Tops probably hidden by cloud. Moon setting in WNW / NW sky largely hidden by cloud (moon mask active) |
2023-04-23 22:35 UT (23:35 LT) Auroral arc at 18-20° altitude, hidden in part by foreground cloud. Aurora rays to 50° altitude |
2023-04-23 22:37 UT (23:37 LT) Auroral rays to 60°+ altitude. Foreground clouds |
2023-04-23 22:52 UT (23:52 LT) Possible brightening in aurora, but partly hidden by cloud |
2023-04-23 23:25 UT (2023-04-24 00:25 LT) Auroral activity continuing. Cloud cover hiding / soiling the display |
2023-04-23 23:30 UT (2023-04-24 00:30 LT) Aurora activity in N sky at 25-30 deg altitude. Diffuse rays to 50°+ altitude. Cloud likely hiding activity in NW and NE sky |
2023-04-23 23:38 UT (2023-04-24 00:38 LT) Auroral activity with rays to 50°+ altitude. |
2023-04-23 23:41 UT (2023-04-24 00:41 LT) Aurora activity continuing. Display continuing to be spoilt by cloud cover and is only visible through breaks. |
2023-04-23 23:45 UT (2023-04-24 00:45 LT) Auroral rays to 55°+ altitude in NNW sky |
30s exposures taken with Oculus All Sky Camera |
AllSky View - TBA (north on right hand side of image) |
2023-04-23 22:37 UT (23:37 LT) - Normal Image Diffuse auroral rays reaching to zenith. Cloud along northern horizon. |
2023-04-23 22:37 UT (23:37 LT) - Difference Image Auroral rays reaching to near zenith. |
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Video: North panoramic view, 1h 55m period
2023-04-23 22:05 UT to 2023-04-24 00:00 UT (23:05 to 01:00 LT) Frames #1328948 to 1329152 |
Link to .mp4 video file (2.4 MB) |
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Magnetometer Stack Plots from Scandinavia
(ordered by latitude) H Component - 2023-09-14 / 2023-09-15 Original data from Tromsų 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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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_2023-09-14 / 2023-09-15 Not captured |
SAMNET's magnetometer at Crooktree, Near Torphins (Chart Explanation) |
8-day Lerwick Observatory K Index - TBA |
Planetary K-Index and other information (Space Weather
Prediction Centre) shows KP Index reaching KP8 on 2023-04-23 |
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Aurora Forecast at 2023-09-14 20:55 UT (22:00 LT for 21:45 UT
(22:45 LT) (From Space Weather Prediction Centre, http://www.swpc.noaa.gov ) |
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This Web Page: | Aurora - 2023-09-14 / 2023-09-15 |
Last Updated : | 2023-09-18 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |