H-Alpha Surface Features Comparison 24 Hours

Star Catcher (Ted Dobosz) · #1 23-11-2012, 05:44 PM

Hi All

On the 19th and 20th November the seeing conditions were good enough to image the same area of interest at high magnification to obseve the changes in surface features.

I have attached a side by side comparision to give you an idea of how some structures changed whilst others reamined relatively static over a 24 hour period. Thanks.

Ted

alocky (Andrew lockwood) · #2 23-11-2012, 05:53 PM

Beautiful resolution. It's mainly when I'm preparing a mosaic that I notice the change over minutes, but usually it's barely noticeable due to seeing and not this dramatic.
What scope/camera/processing were you using?
Regards,
Andrew.

Star Catcher (Ted Dobosz) · #3 23-11-2012, 10:53 PM

Quote:

Originally Posted by alocky

Beautiful resolution. It's mainly when I'm preparing a mosaic that I notice the change over minutes, but usually it's barely noticeable due to seeing and not this dramatic.
What scope/camera/processing were you using?
Regards,
Andrew.

Thanks Andrew. I use a Lunt 80Tha and DMK41 camera and 5x mag with barlows. Processing via avistack, PS and maximdl.
Ted

nandopg · #4 24-11-2012, 04:25 AM

Hi Ted,
Great hi-res images showing some subtle changes in this AR.

We can see the shape of the magnetic field been changed as well as the heigth of the filament on left of the frames.

Great image and great presentation,

Fernando