Wish you all the best ...

Hi,

Stopping down will not bring you more contrast. Contrast in this case has something to do with the adjustment of the etalon eg. to be in band or not ...

IMHO

Stopping down will define if you under- or oversample as far as I have learned here.

Hi, Interesting question. I have had my equipment "working" for few hours while having ambient temperatures of maybe 30°C to 34°C and they still work up to today ... As others said just put a reflecting foil over the equipment and I would also recommend to put and old Cotton towel or bed ...

Hi Bob,

Beautiful images

Hi Magnus, Great image. I could not get the orientation exactly as in GONG today. Look at some full disc images in this forum and you will see that you need to rotate 180° and done. Look at Arne Danielsen's image of today. https://solarchatforum.com/viewtopic.php?t=37443 Having that, the next days y...

Hi Alexandra,

Nice. I see you have a lot of Space in your garden.

Where is the Roll off Roof observatory ?

Hi, Interesting question. I have had my equipment "working" for few hours while having ambient temperatures of maybe 30°C to 34°C and they still work up to today ... As others said just put a reflecting foil over the equipment and I would also recommend to put and old Cotton towel or bed s...

Thanks everybody

(cheap! but I change the focal ratio slightly)?

Why would the focal ratio change by cutting the tube ?

The focal ratio is defined by focal length and aperture ...

Superb as always Rainer, even when you rush against the clouds :bow :hamster: Alexandra Hi, This time the clouds won as I was distracted by a Spectroscopic problem and when I looked up ... There they were ... :evil: ... but I managed to get a big hole and got my videos ... :mrgreen: https://rainere...

That is the prize for so called " Civilized living "

Hi Brian,

Ecellent shot of the plasma cloud

Beautiful images. I missed that big prom ...

WoW Rainer. That little detached prom off the NE limb looks really faint in your image. I am surprised I picked it up so easily in my SMII60 visually. First in DS and easier in SS. I picked it up casually. It was out of view in my GONG reference image. 🤔 Thanks for your verification 👍🏻 James Hi, Yo...

Hi,

Another race against the clouds won and here they are today's discs

Montana wrote: ↑Fri Aug 05, 2022 9:33 am Oooh!!! you got the prom lifting away one image seems to be missing though

Alexandra

Hi Alexandra. Thanks for the advice. Just repaired it. Was my mistake

Amazing images

Hi,

Today I was faster then the clouds but only got the crumbs of the huge prominence of yesterday

Anyone have any tips or tricks for achieving a really good focus with SharpCap? Focusing on the Sun is a question of observing the changes over the short time. I really never succeeded with any automatic focusing algorithm. Get a motorized focuser and observe the Sun, as Warren said, sometimes unde...

Thanks Rainer/Maurits. May I ask how hot was it ? Around 33-34 degrees (Celsius) here locally. Which is probably an average chilly day for you :lol: Yes, for Belgium and Germany as well as other countries that is very warm. Totally over the normal. I only remember one Winter when I was a student we...

Spectacular

Hi James,

Well done. That is really a huge prominence

Hi Jochen,

Very crispy and detailed image. Well done. May I ask how hot was it ?

Anyone have any tips or tricks for achieving a really good focus with SharpCap? Focusing on the Sun is a question of observing the changes over the short time. I really never succeeded with any automatic focusing algorithm. Get a motorized focuser and observe the Sun, as Warren said, sometimes unde...

Hi Mark,

Great images.

I just compared my White Light to yours. You have some spots on the Western limb which I do not have but I have some spots on the Eastern limb which you do not have