Kees Zwaan 🇺🇦
@keeszwaan.bsky.social
Dutch aurora chaser - Crimea is Ukraine
Astrobin: https://www.astrobin.com/users/Keeszify/
Astrobin: https://www.astrobin.com/users/Keeszify/
Interruption is clearly visible on WebSDR Twente (The Netherlands).
websdr.ewi.utwente.nl:8901
websdr.ewi.utwente.nl:8901
November 11, 2025 at 3:01 PM
Interruption is clearly visible on WebSDR Twente (The Netherlands).
websdr.ewi.utwente.nl:8901
websdr.ewi.utwente.nl:8901
Interruption is clearly visible on WebSDR Twente (The Netherlands).
websdr.ewi.utwente.nl:8901
websdr.ewi.utwente.nl:8901
November 11, 2025 at 2:55 PM
Interruption is clearly visible on WebSDR Twente (The Netherlands).
websdr.ewi.utwente.nl:8901
websdr.ewi.utwente.nl:8901
HF radio interrupted this morning after an X5 solar flare hits Earths ionosphere. #WebSDRtwente
November 11, 2025 at 2:45 PM
HF radio interrupted this morning after an X5 solar flare hits Earths ionosphere. #WebSDRtwente
ISS solar transit this morning 🙂 Castricum (NL) #SeestarS50
June 18, 2025 at 12:22 PM
ISS solar transit this morning 🙂 Castricum (NL) #SeestarS50
Globular clusters are my favorite objects in the night sky. Just stars. Lots of stars. This one is NGC 6760, a compact cluster containing an estimated 200.000 stars. These stars were born together and have been moving as a group through the Milky Way ever since. 280x10s subs, SeestarS50.
April 29, 2025 at 10:22 PM
Globular clusters are my favorite objects in the night sky. Just stars. Lots of stars. This one is NGC 6760, a compact cluster containing an estimated 200.000 stars. These stars were born together and have been moving as a group through the Milky Way ever since. 280x10s subs, SeestarS50.
At the peak it was raining, but I still managed to catch some weak aurora :-D Egmond aan Zee (NL) 0:47 CEST #aurora #poollicht
April 15, 2025 at 11:50 PM
At the peak it was raining, but I still managed to catch some weak aurora :-D Egmond aan Zee (NL) 0:47 CEST #aurora #poollicht
There she is! Comet C/2025 F2 (SWAN) 🥰🥰
It was tricky: low on the horizon, light pollution from the city, and even some thin clouds… but I got her! 🥳 (Egmond aan Zee - NL)
#SeestarS50
It was tricky: low on the horizon, light pollution from the city, and even some thin clouds… but I got her! 🥳 (Egmond aan Zee - NL)
#SeestarS50
April 11, 2025 at 3:23 AM
There she is! Comet C/2025 F2 (SWAN) 🥰🥰
It was tricky: low on the horizon, light pollution from the city, and even some thin clouds… but I got her! 🥳 (Egmond aan Zee - NL)
#SeestarS50
It was tricky: low on the horizon, light pollution from the city, and even some thin clouds… but I got her! 🥳 (Egmond aan Zee - NL)
#SeestarS50
De zon vandaag, met de Seestar S50 :) Van zonnevlekgroep AR14048 is niet veel meer over helaas.
April 6, 2025 at 11:34 AM
De zon vandaag, met de Seestar S50 :) Van zonnevlekgroep AR14048 is niet veel meer over helaas.
Composite of today’s partial solar eclipse 🌞🌑 9 images taken with the Seestar S50, timed to capture the full progression of the eclipse. #zonsverduistering #SolarEclipse #Eclipse2025 #SeestarS50
March 29, 2025 at 1:47 PM
Composite of today’s partial solar eclipse 🌞🌑 9 images taken with the Seestar S50, timed to capture the full progression of the eclipse. #zonsverduistering #SolarEclipse #Eclipse2025 #SeestarS50
Zojuist rond 8 uur boven Egmond: een groot vliegtuig begeleid door 6 straaljagers, van west naar oost. Weet iemand wat dit was? Ik zie ze niet op de radar.
March 20, 2025 at 7:14 AM
Zojuist rond 8 uur boven Egmond: een groot vliegtuig begeleid door 6 straaljagers, van west naar oost. Weet iemand wat dit was? Ik zie ze niet op de radar.
She's a bit weak, but she's there!! 💃💃 #poollicht #aurora
March 19, 2025 at 9:02 PM
She's a bit weak, but she's there!! 💃💃 #poollicht #aurora
Today 10 years ago, March 17 2015: my first BIG aurora!💃 And my first naked eye aurora! It was foggy and humid, but that didn’t spoil the fun. I missed STEVE because I was to focused on the north, but I didn’t know any better back then! 😄
#poollicht #Egmond
#poollicht #Egmond
March 17, 2025 at 5:50 PM
Today 10 years ago, March 17 2015: my first BIG aurora!💃 And my first naked eye aurora! It was foggy and humid, but that didn’t spoil the fun. I missed STEVE because I was to focused on the north, but I didn’t know any better back then! 😄
#poollicht #Egmond
#poollicht #Egmond
Ging dikke prima hier in Egmond, in het westen helder 😍
March 14, 2025 at 5:56 AM
Ging dikke prima hier in Egmond, in het westen helder 😍
SpaceX out, ESA in.
March 10, 2025 at 4:18 PM
SpaceX out, ESA in.
Another clear night, another deepsky target: Markarian's Chain 🥰 Seestar S30, 1048 subs, mosaic. 🔭
February 18, 2025 at 6:27 AM
Another clear night, another deepsky target: Markarian's Chain 🥰 Seestar S30, 1048 subs, mosaic. 🔭
Last night clear skies! Time to play with the Seestar S30 telescope 🥰 Messier 44, 752 subs (mosaic)
(Sorry, I made a mistake, so I posted it again)
(Sorry, I made a mistake, so I posted it again)
February 17, 2025 at 8:42 PM
Last night clear skies! Time to play with the Seestar S30 telescope 🥰 Messier 44, 752 subs (mosaic)
(Sorry, I made a mistake, so I posted it again)
(Sorry, I made a mistake, so I posted it again)
Last night we finally had clear skies again 😍 The Seestar telescope was happily at work, and here’s the result: NGC2237 (mosaic), M44 (mosaic) and M61.
February 2, 2025 at 8:22 PM
Last night we finally had clear skies again 😍 The Seestar telescope was happily at work, and here’s the result: NGC2237 (mosaic), M44 (mosaic) and M61.
Horsehead Nebula last night :-) 1064 10sec subs, Seestar S50.
November 29, 2024 at 10:48 AM
Horsehead Nebula last night :-) 1064 10sec subs, Seestar S50.
It's windy but finally a clear night!⭐️ The Seestar S50 is currently capturing a mosaic of the Orion Nebula + Running Man Nebula 🥰
November 25, 2024 at 9:33 PM
It's windy but finally a clear night!⭐️ The Seestar S50 is currently capturing a mosaic of the Orion Nebula + Running Man Nebula 🥰
Aurora Borealis, Egmond aan Zee atm 🥳
September 18, 2023 at 7:59 PM
Aurora Borealis, Egmond aan Zee atm 🥳