I got no time to shoot that extraordinary long filament... but it's not yet gone completely, so I caught the chance today.
The sky was full of scattering cloud.
Let's begin with 5x shots first:-
This monster prominence taken at 2400mm is bigger than Jupiter in size! I've never seen such a big monster in the last ten years!
And then we have AR2282 in close up:-
Let's go to 2x:-
This is that long filament, it's not unexpected that part of it was now out of sight. Notice that the filament extends rather far out to form a straight and tall prominence there, so we know how "thick" that filament actually is. This is a two frames mosaic.
That bigger than Jupiter prominence at 2x:-
Finally, we go for prime focus shots:-
My younger daughter Almy was on sick leave today, so she had a view on all those features... she loves the view too!
Welcome to my astronomy blog, I dedicate myself to the simplest form of amateur astronomy which requires only portable equipment. I have two small refractors, two small binoculars, one small GOTO mount and another small equatorial mount, and a small H-alpha solar filter. Originally from a city where the people were proud of their light pollution, that is Hong Kong where I loved. Relocated to the UK since 2021.
Friday, February 13, 2015
20150212 Jupiter
The sky was not particularly good, but it's not easy to go out either. I didn't take any planetary images for quite long and that's why I proceeded to a nearby playground to take some shots of the Jupiter.
Transparency was like 7/10, seeing 3/10. I was going out with the Nexstar SE mount and C5 OTA in a big plastic bag on one hand, and the tripod plus accessories in a backpack.
First one was taken at prime focus. The ASI refused to show anything, but on re-plugging and re-launching the software, it works finally. It seems quite sensitive but I don't like the larger chip and high resolution especially with my Eee PC, I have to scroll around to see the whole chip or I've to shrink the image at 50% but it was no good for focusing.
The Eee PC is now having a new Chinese 9 cells battery and it really has much juice to run on... after an hour of imaging, it's still going very strong.
Not bad and no good either. At least, I have much better images taken with my Ranger! Note the three Jovian satellites around.
A close up with 2x barlows, showing no more detail than the above.
One can see the direction of the wind blowing here... a signature of poor seeing.
Transparency was like 7/10, seeing 3/10. I was going out with the Nexstar SE mount and C5 OTA in a big plastic bag on one hand, and the tripod plus accessories in a backpack.
First one was taken at prime focus. The ASI refused to show anything, but on re-plugging and re-launching the software, it works finally. It seems quite sensitive but I don't like the larger chip and high resolution especially with my Eee PC, I have to scroll around to see the whole chip or I've to shrink the image at 50% but it was no good for focusing.
The Eee PC is now having a new Chinese 9 cells battery and it really has much juice to run on... after an hour of imaging, it's still going very strong.
Not bad and no good either. At least, I have much better images taken with my Ranger! Note the three Jovian satellites around.
A close up with 2x barlows, showing no more detail than the above.
One can see the direction of the wind blowing here... a signature of poor seeing.
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