Limbdarkening during Partial Solar Eclipse

 

Plotting limbdarkening of the Sun.

• black arrow is a crosssection of the limb including the two sunspots; both give a nice drop in the graph
• red line is a crossection into the segment of the eclipse. 

The black line in the graph shows how the intensity is changed from limb to limb. The red line in the graph  has only one "drop" near the limb. The other "dark side" caused by the moon shows a sudden drop which is clearly different then the drop near the limb. 

Images of the Partial Solar Eclipse October 25

 

Picture of the partial Solar Eclipse of October 25, 2022, taken a couple of minutes before the end of the eclipse. The green color is because I'm using an OIII filter on top of a ND3.8 filter.

Partial Solar Eclipse October 25, 2022

Today I could observe a Partial Solar Eclipse. The magnitude (% of solar diameter) is about 0,31 and the moon covers 20% of the sun.

Setting: TLAPO80/480 f/6 with ND3.8 filter and OIII filter

Camera : Nikon D7500, ISO125, exposure time 1/2500-1/3000s

Software : CS4

First image of Partical Solar Eclipse 25/10/2022

A first picture of the partial Solar Eclipse (October 25th, 2022).
Setting: TLAPO80/480 f/6 with Nikon D7500 (ISO125, 1/3200s)
Filter: ND3.8 and OIII

One hour to go: partial solar eclipse

About a minute ago, clouds are breaking open. One hour tongo for the partial solar eclipse.

Reworked image Jupiter with Io October 2, 2022

I reworked my image of Jupiter from October 2nd, 2022 (UT20h30). The image is a combination of stacking Jupiter and the moon Io separately using AS3!.

WinJUPOS Derotation Jupiter

I already was using WinJUPOS to find timings when the Great Red Spot would show up. Now I used WinJUPOS to derotate my Jupiter images.
As a reference I used the instructions from Info-Polaris July-September '22 number 156.:

• choose planet "Jupiter" under Program - Celestial Body
• open image and add coordinates and exact date
• choose adj tab and select outline frame - automatic detection
• save the file - be aware not select LD compensation
• start dereotation sequence by choosing Tools and derotation images
• with edit add new images
• select exact timing for rotation period and select image extention (tiff)
• compile image and your are ready

Editing and compiling  9 Jupiter Ser files from October 2, 2022  UT20h24-UT20h39. LD during derotation set on level 0,01. Final editing using CS4 and DeNoise AI