Superb!

Very best,

Heya, Fairly decent morning, starting to cool down a little in Florida. Still in the 90's F every day though. The mornings are a little more tolerable, humidity is still high, but it's slowly coming down. Anyhow, AR2724 & AR2725 are still fairly prominent with some minor activity on the disc, but no...

Looks like it handles it great!

Very best,

Pretty cool!

Very best,

Heya, Woke up to a cloudy sky but had some sucker holes. The AR's are pretty large, so I had to attempt some mosaics to be able to frame them up. I did two at different times, and you can see the differences in AR2725, it's a feisty little AR and has some activity going on spitting some filaments ar...

bart1805 wrote: ↑

Wed Oct 17, 2018 7:13 pm

Thanks Apollo and Marty!

That's the one in the link.

And I just put a 1.25" filter from a GSO 1.25" polarizing filter into the same cell and it fits and secures down with the threading internal ring. So it works for 25.4mm filters and standard 1.25" commercial filters just fine.

Very best,

Haha, thanks Bob :) Funny enough the past filters I ordered, 25mm filter, from Newport (KG3 filter) and it dropped right into a basic 1.25" filter cell and I just turned the ring inside it and it housed great. Worked right into everything truly simply. Just couldn't handle the heat because I was du...

Back to the C8 Edge-HD, the optical quality is much better than the optical quality of these vintage SC...I started a long time ago with an orange tube C8 ... The C8 Edge-HD is an excellent balance between portability, ease of use, optical quality and resolution. The only drawback is that you need ...

I would suggest monitoring the temperature inside your observatory. The big questions are: - What is the temperature during daytime and during night time ? - Do you have a change in temperature all along the night ? It's often around 100F during the day in there. At night, it may be in the mid 80F ...

I found it by total chance, so far, the etalon appears quite good and the ITF is excellent too. I may use it for a PST mod eventually with the 6" refractor and if I can pull funds together a C8 Edge later on, to stay modular to move between scopes, and double up with the Quark.

Very best,

Heya, Another lovey clear morning with good seeing. But, very little going on with our star. There's a filaprom that is interesting as it transitions. Maybe it will be really interesting tomorrow or the day after, though I'll be at work for that unfortunately, so hopefully someone else takes a look....

I would not touch the Daystar. The "double stack performance" is marketing garbage. It's not a double stack at all and is going to have parasitic continuum show up. For imaging purposes, it's a fairly long scope too, due to the internal telecentric. Also, how do you double stack it in the future if ...

Hi Marty, At the moment my 9 inch Maksutov is being tested and optimised. How good is it at different wavelengths for example and it is getting the perfect collimation. I allready know it is really good for visual. The optics are built into a carbon tube and isolated from the inside out with Armafl...

And something else. Why would a 8 inch SCT be better than a 6 inch refractor? You win two inches, but you loose a lot because of the central obstruction. So by default, contrast is better in a refractor. Yes, there are great 8 inch SCT's and Maksutovs. But if you want to go a step further, make a m...

Sorry, I should have noted, the focuser is a GSO Crayford focuser for SCT's on the back of it. I don't focus moving the primary mirror (other than to get it close). The dual speed focus of the crayford does the rest of the work. Getting focus isn't too hard, as long as there is at least one sunspot ...

Interesting comparison, Marty: what are your thoughts after the results are in ? Franco Hi Franco, The 30mm aperture difference is subtle, but I feel like I see more structure and definition in the "knuckles" in the plage areas and everything is just a bit more detailed enough to differentiate the ...

Heya, So I had a little time this morning to test a few things. I had a "first light success" this time. So this SCT isn't the worst, but it's certainly not excellent. Anyhow, if you refer back to my previous post, I have some representations recorded to show the airy disk and collimation in general...

Heya, Woke up to a fairly decent sky. Fiddled between a few setups to see some differences. I mainly wanted to compare real world results of a 150mm (6") refractor to a 120mm (4.7") refractor, both at F35. There's a single decent prom but I mainly just observed it a while. I was overall watching the...

Interesting. I'm always curious how filaments in various wavelengths compare as filaments seen from above, hovering over the surface, compared to the same filaments on a limb with the void of space behind them, in various wavelengths, and why it's so hard to see them there when the should likely be ...

Hello, Thank you all for taking the time to give input. I had a little time tonight and wanted to do a little testing to try and figure a few things out. Vega was near Zenith tonight, so I pointed it there. I recorded some images focused and out of focus on both sides of focus to share to maybe help...

I don't know why the GIF won't auto play.... maybe it was too big?

Here's the animation on my Astrobin:



Very best,

Heya, Well, Hurricane Michael is gone (we were ok in my area in Florida) and my sky is clear again. It's been over 90 degrees F every day and humid and yet today I woke up to chilly temperatures and frost on my grass of all things. I had a clear sky all morning so I left my scope pointed at AR2724 t...

Nice Pedro! Looks like a nice little portable setup too, looks great!

Very best,

Nice Pedro! Looks like a nice little portable setup too, looks great!

Very best,

Sounds cool Jack!

How about some images of your cardboard cells and where you internally placed the ERF?

Very best,