Tuesday, August 27, 2024

Sun in CaIIH &H1v, CaIIK & K1v

Imaging the Sun in CaIIH &H1v, CaIIK3 & K1v using my Sol'Ex pro.

Setting: TLAPO60/360 with Sol'Ex Pro and ASI290MM
Herschel Wedge
Software:  SharpCap4, Inti, CS4



Sunday, August 25, 2024

The Sun in H-alpha, beta, gamma, delta, CaIIK and H using Sol'Ex pro

This morning I took some time to image the Sun in different wavelengths using my Sol'Ex Pro. It was windy and seeing was bad. So images are far from perfect.

Setting: TLAPO60/360 with Sol'Ex Pro and ASI290MM
Herschel Wedge
Software: SharpCap4, Inti, JSolex and CS4
PC and SSD 









The Sun in FeI(c) line with Sol'Ex

Imaging the Sun with Sol'Ex pro in FeI(c) line (495.761nm). Both traces of the photosphere and chromosphere are visible. 

Conditions were far from perfect with wind and bad seeing.

Setting: TLAPO 60/360 with Sol'Ex Pro and ASI290MM
Herschel Wedge
Software : Sharpcap 4, Inti, JSolex and CS4



Wednesday, August 21, 2024

Lunar Occultation of Saturn

This morning, August 2024 at 5h30, planeet Saturn disappeared behing the Moon. Almost an hour later, around 6h26, the planet return from behind the Moon.

The PC was not ready to capture the first moment of occultation and therefor I took some afocal pictures and followed the phenomen visuel. The second moment was imaged using ASI224MC.

Setting: Dobson OrionXT12 (300mm) f/4.9
Camera : ASI224MC
Software : SharpCap4, Astrosurface, CS4
Afocal : iPhone on 9mm ocular.





Monday, August 19, 2024

Red "Super Blue" Moon due to forest fire in Canada

Image of the Super Blue Moon which is currently red due to forest fire in Canada.






Sunday, August 18, 2024

Saturn Triple Ring Plane Crossing 2039

I know, still 15 years to go but, you can already start planning for the triple Saturn Ring Plan Crossing in 2039. One is not visible due to the Saturn - Sun Conjunction. 

Credit : https://in-the-sky.org/news.php?id=20400328_12_100


Saturn Ring Plane Crossing

The Rings of Saturn are "closing" and they will dissapear on March 23, 2025 and November 24, 2025 (not really as tilt will be 0.22°).
But where to find the data of the day to day tilt of the rings? I found this via Stellarium. When Saturn is selected, phi "e" shows the information for the tilt of the rings in degrees. 

Below graph shows when to see the ring plane crossing from both "Earth" and "Sun". 

Credit : https://in-the-sky.org/news.php?id=20250921_12_100

I imaged Saturn on August 15, 2024 with following information :


Planet diameter : 19"
Planet with Ring diameter : 42.8"
Height of the ring : 2.6"
Tilt of the ring : 2.56°