Sun in H-Beta

My first picture of the Sun in H-beta. Image taken using my Sol'Ex.

Setting: 

- TLAPO60/360 f/6 with ASI290MM

- Hoya 1.6 filter

- Sol' Ex

- Sharpcap, SHG, CS4

For comparison with H-Alpha and CaH line

H-Alpha Sundisk with Scale

The Sun in H-alpha from May 10, 2024 and adding a scale to have insight of the dimensions.

Scale template from http://solardatabase.free.fr/#

Sunspots: what to see?

I used my picture of the huge sunspot AR3664 to point out what to see beyond the umbra and penumbra.

 

My picture of Sunspot 3664 on STCE website and newsletter 20240524

My picture of the very active Sunspot AR3664 taken on May 9th, is published on the Solar Terrestrial Centre of Excellence (STCE) website.

See also the newletter in pdf. 

Video : Aurora - Northern Light

I made a video of about 100 images taken on May 10th during the Aurora show above Belgium. Enjoy watching the video.

Click on the picture to watch the video

More picture of the Northern Light of May 10

Some more pictures taken of the aurora of 10 May above Averbode (Belgium). All pictures taken with Nikon D7500, 15mm f/4, ISO1600 and 5s exposure time.

 

Sunspot AR3664 responsable for Aurora above Belgium

On May 10, I made some images of sunspot AR3664. This huge sunspot (2400MH) was very active with M and X flares. The resulting CME's are responsible for a fantastic live aurora show above Belgium and many other countries.

Setting:

SolarMax III 70/400 f/5.7 with ASI290MM

Reducer x0.5

Lights : Exposure time 0.675ms, 82 fps, 3000 frames

Use of flats. 

Software : SharpCap 4.1, AstroSurface, CS4