Saturday, September 20, 2025

Aurora Iceland, Equinox Storm

My images of aurora in Iceland. These were caused by the equinox storms and were visibble over a couple of days.








Tuesday, September 16, 2025

Aurora Iceland

With a Kp 4 (or was it more?) we could observe polarlight in Iceland. Observation was done in Hellissandur near the Coast. Sky cleared up but with high clouds. Polarlight was visible as from 22h but kept going for a couple of hours. A certain moments the entire sky was colored green. Picture taken by my daughter with iPhone. So more pictures to come.

Saturday, September 13, 2025

Rainbow @Skogafoss

Beautifull waterfall Skogafoss (Iceland) with a nice rainbow.

Friday, September 12, 2025

Rainbow above volcano crater

> When walking around Volcano Crater @Selfoss Iceland a supernumerary rainbow showed up creating a nice view and picture.
>

Tuesday, September 2, 2025

Apocalyptic Red Rainbow at Sunset

I could image a rainbow, only 9 minutes before sunset. The rainbow was quit red with aswell a red cloudy background. Very apocalyptic...




Saturday, August 30, 2025

Sunspot AR4197

Sunspot AR4197 consists of about 50 spots and is 740MH big. Late afternoon clouds started to disappear and I installed my TAL200K. My parents were at home and I let them watch the big sunspot. Next I connected my ASI290MM camera and took some images. Seeing wasn't good which resulted in more then 500Gb of data. Stacking was done using AstroSurface but editing was done with IMPPG and CS4.

Setting: TAL200 f/8.5, barlow x2 and ASI290MM
Filters : ND5.0, IR/UV cut and OIII
Software: SharpCap, AstroSurface, IMPPG and CS4





 

Friday, August 29, 2025

Supernumerary Rainbow

This evening a double rainbow which was also a supernumrary one.
Image taken @Averbode - Belgium 












Sunday, August 24, 2025

Sun August 24, 2025

The Sun this morning (August 24, 2025). Some more 
adjusting of my new Sol'Ex by James R. 
Seeing was < 1,5arcs but at noon time this was increase to 2,5arcs.

Setting: TLAPO80/480 with ASI678MM and Sol'Ex by James R with 2nd Gen slit
Herschel Wedge
Tilt < 0,25° and Sx/Sy 1,1
Software: SharpCap, Inti, JSolex and CS4
Seeing SSM3 on SharpCap









 






Saturday, August 23, 2025

Thursday, August 21, 2025

Mercury, Venus, Jupiter and Moon at sunrise

 At UT3h21 this morning I was able to capture Mercury which was only 3° above the horizon. The sky was special with Mercury, Jupiter, Venus and the Moon and a golden hour background.





Tuesday, August 19, 2025

Helium D3 line

Imaging the Sun in the Helium D3 line (HeID3). For details see picture.


Monday, August 18, 2025

Sun on August 17: H-alpha and CaIIH and K line

Using my new Sol'Ex by James R. I'm making progress to get the images sharper and sharper. But it's not yet 100% sharp, mainly in one area. So more works to do. Turing the collimator wheel about 10times "in" starting from H-alpha settings, I got a really sharp CaII H ad K-line sundisk.





Solar Scintillation Monitor SSM3 and SharpCap

After downloadoing the latest version of SharpCap (adjusted for the SSM3 bug) I connected my Solar Scintillation Monitor SSM3 (See https://www.analog-astronomical-device.ch/solar-scintillation-monitor). . Using the tools menu and selecting Solar Scintillation Monitor, the SSM3 can be connected. The result works very good with a good graphic follow up.


Overal seeing below 2 arcs with moments even lower.

The increase is due to upcoming high clouds

For instructions to connect the SSM3 with SharpCap see https://forums.sharpcap.co.uk/viewtopic.php?p=48907#p48907 (New Feature : Support for Solar Scintillation Monitors).

Tuesday, August 12, 2025

1 Year to Go : Total Solar Eclipse August 12, 2026

1 Year to go for the Total Solar Eclipse of August 12, 2026 which starts in Greenland, over Iceland and Spain.




Venus-Jupiter Conjuction

Venus passes south of planet Jupiter this morning. I got up very early and went to Schaffen to get a free eastern horizon. Images mad with my Nikon D7500.




Sunday, August 10, 2025

Wetenschap in beeld: Grootste raadsels van de natuurkunde

 


Speciale editie van Wetenschap in Beeld met de grootste raadsels van de natuurkunde. Ideaal voor deze periode en leest gemakkelijk.


Saturday, August 9, 2025

Thursday, August 7, 2025

The Sun August 3 2025 Halpha, beta, HeID3, CaIIH/K, G-band and FeII/TiII

Sunday morning August 3, 2025 and a clear sky... at least untill noon time.
The objective was to adjust the collimator for both H-alpha as CaIIH/K using the Sol'Ex by James R.

I got some very good results with H-alpha,, HeD3 and H-beta. The Ca ion lines were a bit tricky and rather moderate. I will have this done next time.

Seeing conditions moderate but below 2,5arcs. Got into the G-band with good results and also for the FeII /TiII line. This last one has a simular structure as HeID3 line.

Setting: TLAPO80/480 with ASI678MM and Sol'Ex by James R.
Herschel Wedge
Sx/Sy < 1,1 and Tilt < 0,2°
Software: Sharpcap, Inti, JSolex and CS4